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CropSci 04 UPSTEP
100問 • 1年前
  • Anne Ranay
    • 通報

    問題一覧

  • 1

    It is an area in crop science that deals with gardens and plants within an enclosure

    horticulture

  • 2

    Which of the following international research organizations is mandated to do research and development of maize and corn?

    CIMMYT

  • 3

    Which of the followig is a specialized discipline-oriented research center?

    NCPC

  • 4

    Which of the following is not a national commodity research center?

    Syngenta

  • 5

    A national agency mainly involved in producing newly bred rice varieties

    Philrice

  • 6

    As a science, crop production is very much related to:

    botany, soil science, breeding and genetics

  • 7

    Which of the following is considered a cereal or grain crop?

    Triticum aestivum

  • 8

    These are the plants that can live for several years and may produce seeds each year but do not die with seed production

    perennial

  • 9

    Which of the following is not an oil crop?

    millet

  • 10

    Plants with no trunk and may be several main branches; rarely grows higher than five meters

    shrub

  • 11

    Any crop that is being grown to provide soil cover, prevent soil cover, prevent soil erosion by wind or water, improve soil, and control weeds

    cover crop

  • 12

    These crops are known for their use in extracting sap from the trunk/stem

    latex and resins

  • 13

    Which of the following belongs to the turf classification of ornamental plants?

    Cynodon dactylon

  • 14

    Petchay is planted immediately after the failure of the main crop. In this case, pechay is considered as:

    catch crop

  • 15

    Foliage used to provide background in floral arrangements

    cut-foliage

  • 16

    A classifaction system based on convenience in which a structure or feature serves as a basis for grouping

    artificial

  • 17

    These are plants that ordinarily require two years or atleast part of two growing seasons with a dormant period between growth stages to complete their life cycle

    biennals

  • 18

    Which is not under the family Fabaceae

    Lagenaria siceraria

  • 19

    Crossing over of genes on a chromosome occurs as a result of

    sexual reproduction

  • 20

    Which does not belong to the Crucifer family

    B. sinensis

  • 21

    Which of the following is not a component of a plant cell?

    lysosomes

  • 22

    Which organelle is responsible for photosynthesis in plant cells?

    chloroplasts

  • 23

    What is the function of the cell wall in plants cells

    to provide structural support

  • 24

    Which of the following is not a type of plastid found in plant cells?

    lysosomes

  • 25

    What is the function of the vacuole in plant cells

    to store and transport nutrients

  • 26

    Which organelle is responsible for the synthesis of proteins in plant cells?

    ribosomes

  • 27

    What is the function of the mitochondria in plant cells?

    to produce energy

  • 28

    Which of the following is a unique feature of plant cells

    presence of cell wall

  • 29

    Which type of plastid is responsible for storing green pigments in plant cells?

    chloroplasts

  • 30

    Which structure is common to plant and animal cells

    mitochondrion

  • 31

    Plastid responsible for the yellow, orange or red colors of many flowers and other parts of the plants

    chromoplast

  • 32

    It is the chief food conducting element of the phloem

    sieve tube element

  • 33

    It is the collective term for xylem and phloem tissues of the plants

    vascular tissue

  • 34

    The chlorophyll is commonly found in:

    mesophyll cells

  • 35

    The fixation or reduction of carbon dioxide into carbohydrates can occur via three pathways. Which of the following statements describe these pathways correctly?

    none of the above

  • 36

    Which of the following statement/s is/are true?

    the first statle product of C3 plant is 3-PGA

  • 37

    How is photosynthesis similar in C4 plants and CAM plants?

    in both cases, rubisco is not used to fix carbon initially

  • 38

    The light reactions of photosynthesis supply the Calvin cycle with

    ATP and NADPH

  • 39

    Where does the light reaction phase of photosynthesis take place?

    Thylakoid

  • 40

    What are the products of the light reaction phase of photosynthesis?

    ATP and NADPH

  • 41

    Why is the dark reaction phase (otherwise known as light dependent phase) of photosynthesis called as such?

    does not require light

  • 42

    Why is photosynthesis usually low under drought conditions?

    stomatal resistance to the diffusion of CO2 into the leaf is high

  • 43

    What is the primary product of the light-dependent reactions of photosynthesis

    O2

  • 44

    Which of the following is a product of the light-independent reactions of photosynthesis?

    Glucose

  • 45

    In crop production, which of the following is a common practice to increase photosynthetic activity in plants?

    adjusting the light intensity and duration for optimal growth

  • 46

    An enzyme-catalyzed reaction involving the transmission of organic substrate into carbon dioxide and water accompanied by the release of energy

    Respiration

  • 47

    Which of the following statements is false

    Krebs cycle involves the partial oxidation of a glucose molecule that yields two molecules of pyruvic acid

  • 48

    The follwoing statements are true except:

    seeds with lower mousture content respire more than seeds with higher moisture content

  • 49

    During glycolysis, each glucose molecule is broken down into two molecules of pyruvate. In eukaryotic cells, the pyruvate enters the:

    mitochondrion

  • 50

    Which metabolic pathway is common to both fermentation and cellular respiration of a glucose molecule?

    glycolysis

  • 51

    What does an RQ value equal to 1 mean?

    glucose is being respired

  • 52

    What are the products of glycolysis in the higher forms of plants?

    NADH and ATP

  • 53

    Where does the Krebs cycle take place?

    mitochondrion

  • 54

    Which of the following is the final electron acceptor in the electron transport chain during aerobic respiration in plants?

    oxygen

  • 55

    During the process of glycolysis, glucose is converted into:

    pyruvate

  • 56

    Which of the following organelles is responsible for carrying out the process of cellular respiration in plants?

    mitochondria

  • 57

    Which of the following stages of cellular respiration produces the most ATP?

    electron transport chain

  • 58

    Which of the following is an alternative pathway for glucose breakdown in plants, when oxygen is not available?

    fermentation

  • 59

    The primary function of Krebs Cycle in cellular respiration

    to generate electron carriers

  • 60

    Which of the following is a characteristic of aerobic respiration in plants?

    it produces more ATP than anaerobic respiration

  • 61

    Which of the following environmental factors does not affect the rate of tranapiration in plant?

    soil type

  • 62

    Which of the ff plant structures regulates the rate of transpiration by opening and closing its stomata?

    leaves

  • 63

    Which of the ff statements ia true regarding transpiration in plants?

    it involves the loss of water vapor through stomata in leaves

  • 64

    What do you call the loss of water vapor in water lily?

    evapotranspiration

  • 65

    Which of the ff is the correct pathway for water movement during transpiration in plants?

    roots, stems, leaves

  • 66

    Which of the ff is the primary purpose of transpiration in plants?

    to transport water to the leaves

  • 67

    Which of the ff is a mechanism that helps reduce water loss during transpiration in plants?

    sunken stomata

  • 68

    Which of the ff plant species ia likely to have the highest transpiration rate

    pine tree

  • 69

    What is transpiration?

    the loss of water vapor from plant leaves

  • 70

    Which of the ff environmental conditiona would result in the highest rate of transpiration?

    high temp and very low RH

  • 71

    What is the role of the cuticle in transpiration?

    to reduce wated loss from the leaf surface

  • 72

    How does the structure of the xylem contribute to transpiration?

    by providing a network of channels for water movement

  • 73

    How does transpiration benefit plants?

    by providing a means of cooling the plant

  • 74

    Which of the ff is consequence of insufficient transpiration?

    reduced water uptake by roots

  • 75

    Which of the ff statements is not true about transpiration?

    higher wind velocity increases the rate of transpiration

  • 76

    Which plant organ is considered as the primary source of photosnynthates in most crops?

    leaves

  • 77

    The process called when sugars are transported from source to sink tissues in a plant?

    translocation

  • 78

    In phloem loading which of the ff sugars is often tranaported from mesophyll cells to sieve-tube elements?

    sucrose

  • 79

    What is the primary source that drives the translocation of photosynthates in plants?

    Osmotic pressure

  • 80

    Which of the following plants organs is considered as a sink for photosynthates during vegetative growth?

    growing buds

  • 81

    Term used to describe the downward movement of nutrients in a plant?

    translocation

  • 82

    Which of the following is an example of a plant sink tissue

    developing fruits

  • 83

    Process by which plants allocate resources to different parts of the plant based on their relative growth rates?

    allocation

  • 84

    In which direction do sugars and other organic compounds typically move through the phloem?

    from the leaves to the roots

  • 85

    This mineral nutrient is an integral component of chlorophyll and acts as an activator of phosphorylation and RUBP carboxylase

    Magnesium

  • 86

    Statement I: plants exhibit purple coloring of leaves when phosphorus is deficient Statement II: purple coloring in leaves when P is deficient ia due to sugar accumulation resulting in high anthocyanin pigment formation

    statement I and II are both TRUE

  • 87

    Which of the following statements is not true?

    deficiency symptoms are manifested in younger leaves if mobile nutrients are lacking

  • 88

    Which of the following statements is/are true about beneficial elements?

    c. beneficial elements are elements that can replace mineral nutrients in some other less specific function but not absolutely necessary for plant's surval

  • 89

    It is a nutrient that is constituent of several coenzymes, vitamins essential for metabolism, and two amino acids

    sulfur

  • 90

    Statement I: NH4+ and NH3 are the available forms of nitrogen for plant absorption and utilization Statement II: Nitrogen deficiency leads to yellowing of young leaves and stunted growth

    Statement I is FALSE, Statement II is TRUE

  • 91

    Statement I: beneficial elements can compensate for toxic effects of other elements Statement II: Beneficial elementa such as boron and molybdenum can replace mineral nutrients in some other less sepecific function

    Statement I is TRUE, Statement II is FALSE

  • 92

    Statement I: micronutrients are used by plants only in small quantities such as Fe, Cu, and Cl Statement II: if the concentration of a micronutrient exceeds its optimum amount, the plant will be more vigorous and productive

    Statement I is TRUE, Statement II is FALSE

  • 93

    The inorganic nutrient most often lacking in crops is

    nitrogen

  • 94

    Micronutrients are needed in very small amounts because

    most serve mainly as cofactors of enzymes

  • 95

    A mineral deficiency is likely to affect older leaves more than younger leaves if

    the mineral is very mobile within the plant

  • 96

    Which of the ff is a mobile nutrient in plants

    nitrogen

  • 97

    Which of the following nutrients is immobile in plants?

    calcium

  • 98

    This refers to the attainment of size by virtue of growth and architectural style by the concomitant process of morphogenesis

    development

  • 99

    This refer to the irreversible time change generally accompanied by an increase in size, weight or mass

    growth

  • 100

    If a long-day plant has a critical night length of 9 hrs, which 24hour cycle would prevent flowering?

    14hrs light/10hrs dark

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    問題一覧

  • 1

    It is an area in crop science that deals with gardens and plants within an enclosure

    horticulture

  • 2

    Which of the following international research organizations is mandated to do research and development of maize and corn?

    CIMMYT

  • 3

    Which of the followig is a specialized discipline-oriented research center?

    NCPC

  • 4

    Which of the following is not a national commodity research center?

    Syngenta

  • 5

    A national agency mainly involved in producing newly bred rice varieties

    Philrice

  • 6

    As a science, crop production is very much related to:

    botany, soil science, breeding and genetics

  • 7

    Which of the following is considered a cereal or grain crop?

    Triticum aestivum

  • 8

    These are the plants that can live for several years and may produce seeds each year but do not die with seed production

    perennial

  • 9

    Which of the following is not an oil crop?

    millet

  • 10

    Plants with no trunk and may be several main branches; rarely grows higher than five meters

    shrub

  • 11

    Any crop that is being grown to provide soil cover, prevent soil cover, prevent soil erosion by wind or water, improve soil, and control weeds

    cover crop

  • 12

    These crops are known for their use in extracting sap from the trunk/stem

    latex and resins

  • 13

    Which of the following belongs to the turf classification of ornamental plants?

    Cynodon dactylon

  • 14

    Petchay is planted immediately after the failure of the main crop. In this case, pechay is considered as:

    catch crop

  • 15

    Foliage used to provide background in floral arrangements

    cut-foliage

  • 16

    A classifaction system based on convenience in which a structure or feature serves as a basis for grouping

    artificial

  • 17

    These are plants that ordinarily require two years or atleast part of two growing seasons with a dormant period between growth stages to complete their life cycle

    biennals

  • 18

    Which is not under the family Fabaceae

    Lagenaria siceraria

  • 19

    Crossing over of genes on a chromosome occurs as a result of

    sexual reproduction

  • 20

    Which does not belong to the Crucifer family

    B. sinensis

  • 21

    Which of the following is not a component of a plant cell?

    lysosomes

  • 22

    Which organelle is responsible for photosynthesis in plant cells?

    chloroplasts

  • 23

    What is the function of the cell wall in plants cells

    to provide structural support

  • 24

    Which of the following is not a type of plastid found in plant cells?

    lysosomes

  • 25

    What is the function of the vacuole in plant cells

    to store and transport nutrients

  • 26

    Which organelle is responsible for the synthesis of proteins in plant cells?

    ribosomes

  • 27

    What is the function of the mitochondria in plant cells?

    to produce energy

  • 28

    Which of the following is a unique feature of plant cells

    presence of cell wall

  • 29

    Which type of plastid is responsible for storing green pigments in plant cells?

    chloroplasts

  • 30

    Which structure is common to plant and animal cells

    mitochondrion

  • 31

    Plastid responsible for the yellow, orange or red colors of many flowers and other parts of the plants

    chromoplast

  • 32

    It is the chief food conducting element of the phloem

    sieve tube element

  • 33

    It is the collective term for xylem and phloem tissues of the plants

    vascular tissue

  • 34

    The chlorophyll is commonly found in:

    mesophyll cells

  • 35

    The fixation or reduction of carbon dioxide into carbohydrates can occur via three pathways. Which of the following statements describe these pathways correctly?

    none of the above

  • 36

    Which of the following statement/s is/are true?

    the first statle product of C3 plant is 3-PGA

  • 37

    How is photosynthesis similar in C4 plants and CAM plants?

    in both cases, rubisco is not used to fix carbon initially

  • 38

    The light reactions of photosynthesis supply the Calvin cycle with

    ATP and NADPH

  • 39

    Where does the light reaction phase of photosynthesis take place?

    Thylakoid

  • 40

    What are the products of the light reaction phase of photosynthesis?

    ATP and NADPH

  • 41

    Why is the dark reaction phase (otherwise known as light dependent phase) of photosynthesis called as such?

    does not require light

  • 42

    Why is photosynthesis usually low under drought conditions?

    stomatal resistance to the diffusion of CO2 into the leaf is high

  • 43

    What is the primary product of the light-dependent reactions of photosynthesis

    O2

  • 44

    Which of the following is a product of the light-independent reactions of photosynthesis?

    Glucose

  • 45

    In crop production, which of the following is a common practice to increase photosynthetic activity in plants?

    adjusting the light intensity and duration for optimal growth

  • 46

    An enzyme-catalyzed reaction involving the transmission of organic substrate into carbon dioxide and water accompanied by the release of energy

    Respiration

  • 47

    Which of the following statements is false

    Krebs cycle involves the partial oxidation of a glucose molecule that yields two molecules of pyruvic acid

  • 48

    The follwoing statements are true except:

    seeds with lower mousture content respire more than seeds with higher moisture content

  • 49

    During glycolysis, each glucose molecule is broken down into two molecules of pyruvate. In eukaryotic cells, the pyruvate enters the:

    mitochondrion

  • 50

    Which metabolic pathway is common to both fermentation and cellular respiration of a glucose molecule?

    glycolysis

  • 51

    What does an RQ value equal to 1 mean?

    glucose is being respired

  • 52

    What are the products of glycolysis in the higher forms of plants?

    NADH and ATP

  • 53

    Where does the Krebs cycle take place?

    mitochondrion

  • 54

    Which of the following is the final electron acceptor in the electron transport chain during aerobic respiration in plants?

    oxygen

  • 55

    During the process of glycolysis, glucose is converted into:

    pyruvate

  • 56

    Which of the following organelles is responsible for carrying out the process of cellular respiration in plants?

    mitochondria

  • 57

    Which of the following stages of cellular respiration produces the most ATP?

    electron transport chain

  • 58

    Which of the following is an alternative pathway for glucose breakdown in plants, when oxygen is not available?

    fermentation

  • 59

    The primary function of Krebs Cycle in cellular respiration

    to generate electron carriers

  • 60

    Which of the following is a characteristic of aerobic respiration in plants?

    it produces more ATP than anaerobic respiration

  • 61

    Which of the following environmental factors does not affect the rate of tranapiration in plant?

    soil type

  • 62

    Which of the ff plant structures regulates the rate of transpiration by opening and closing its stomata?

    leaves

  • 63

    Which of the ff statements ia true regarding transpiration in plants?

    it involves the loss of water vapor through stomata in leaves

  • 64

    What do you call the loss of water vapor in water lily?

    evapotranspiration

  • 65

    Which of the ff is the correct pathway for water movement during transpiration in plants?

    roots, stems, leaves

  • 66

    Which of the ff is the primary purpose of transpiration in plants?

    to transport water to the leaves

  • 67

    Which of the ff is a mechanism that helps reduce water loss during transpiration in plants?

    sunken stomata

  • 68

    Which of the ff plant species ia likely to have the highest transpiration rate

    pine tree

  • 69

    What is transpiration?

    the loss of water vapor from plant leaves

  • 70

    Which of the ff environmental conditiona would result in the highest rate of transpiration?

    high temp and very low RH

  • 71

    What is the role of the cuticle in transpiration?

    to reduce wated loss from the leaf surface

  • 72

    How does the structure of the xylem contribute to transpiration?

    by providing a network of channels for water movement

  • 73

    How does transpiration benefit plants?

    by providing a means of cooling the plant

  • 74

    Which of the ff is consequence of insufficient transpiration?

    reduced water uptake by roots

  • 75

    Which of the ff statements is not true about transpiration?

    higher wind velocity increases the rate of transpiration

  • 76

    Which plant organ is considered as the primary source of photosnynthates in most crops?

    leaves

  • 77

    The process called when sugars are transported from source to sink tissues in a plant?

    translocation

  • 78

    In phloem loading which of the ff sugars is often tranaported from mesophyll cells to sieve-tube elements?

    sucrose

  • 79

    What is the primary source that drives the translocation of photosynthates in plants?

    Osmotic pressure

  • 80

    Which of the following plants organs is considered as a sink for photosynthates during vegetative growth?

    growing buds

  • 81

    Term used to describe the downward movement of nutrients in a plant?

    translocation

  • 82

    Which of the following is an example of a plant sink tissue

    developing fruits

  • 83

    Process by which plants allocate resources to different parts of the plant based on their relative growth rates?

    allocation

  • 84

    In which direction do sugars and other organic compounds typically move through the phloem?

    from the leaves to the roots

  • 85

    This mineral nutrient is an integral component of chlorophyll and acts as an activator of phosphorylation and RUBP carboxylase

    Magnesium

  • 86

    Statement I: plants exhibit purple coloring of leaves when phosphorus is deficient Statement II: purple coloring in leaves when P is deficient ia due to sugar accumulation resulting in high anthocyanin pigment formation

    statement I and II are both TRUE

  • 87

    Which of the following statements is not true?

    deficiency symptoms are manifested in younger leaves if mobile nutrients are lacking

  • 88

    Which of the following statements is/are true about beneficial elements?

    c. beneficial elements are elements that can replace mineral nutrients in some other less specific function but not absolutely necessary for plant's surval

  • 89

    It is a nutrient that is constituent of several coenzymes, vitamins essential for metabolism, and two amino acids

    sulfur

  • 90

    Statement I: NH4+ and NH3 are the available forms of nitrogen for plant absorption and utilization Statement II: Nitrogen deficiency leads to yellowing of young leaves and stunted growth

    Statement I is FALSE, Statement II is TRUE

  • 91

    Statement I: beneficial elements can compensate for toxic effects of other elements Statement II: Beneficial elementa such as boron and molybdenum can replace mineral nutrients in some other less sepecific function

    Statement I is TRUE, Statement II is FALSE

  • 92

    Statement I: micronutrients are used by plants only in small quantities such as Fe, Cu, and Cl Statement II: if the concentration of a micronutrient exceeds its optimum amount, the plant will be more vigorous and productive

    Statement I is TRUE, Statement II is FALSE

  • 93

    The inorganic nutrient most often lacking in crops is

    nitrogen

  • 94

    Micronutrients are needed in very small amounts because

    most serve mainly as cofactors of enzymes

  • 95

    A mineral deficiency is likely to affect older leaves more than younger leaves if

    the mineral is very mobile within the plant

  • 96

    Which of the ff is a mobile nutrient in plants

    nitrogen

  • 97

    Which of the following nutrients is immobile in plants?

    calcium

  • 98

    This refers to the attainment of size by virtue of growth and architectural style by the concomitant process of morphogenesis

    development

  • 99

    This refer to the irreversible time change generally accompanied by an increase in size, weight or mass

    growth

  • 100

    If a long-day plant has a critical night length of 9 hrs, which 24hour cycle would prevent flowering?

    14hrs light/10hrs dark