問題一覧
1
These are several agents that transfer pollen grains to hasten fruit development. Some flowers are pollinated by bats and these flowers are called
chiropterophilous
2
Which among the crops does not fall under the family Solanaceae?
P. lunatus
3
The first genetically modified food crop produced in developed countries due to delayed ripening is
tomato
4
Root hairs are uncutinized epidermal appendages located at the
cell maturation region
5
The scientific name of durian is
Durio zibethinus
6
The ratio of genotypic variance to the total variance is termed as
heritability
7
The grand phase of growth is known as
linear phase
8
The phenomenon of a single major gene affecting more than one character is known as
pleiotropy
9
Momordica charantia and Sechium edule, are examples of the family
Cucurbitaceae
10
A flower that bears both reproductive structures,the pistil and stamen, is called
perfect
11
The production of ethylene is due to the action of growth hormone known as
auxins
12
If the flowering of short day plant is controlled by a growth hormone, the flowering of long day plant is likewise controlled by growth hormones. The hormone responsible for this effect is
gibberellins
13
Apical dominance is a phenomenon wherein lateral buds are dormant in the presence of terminal buds is affected by
auxins
14
An example of pulse crop is
cowpea
15
The scientific name of mangosteen is
Garcinia mangostana
16
The main cell type and tissue type comprising the whole plant body that performs the function of food production, storage and secretion is
parenchyma
17
Branch roots or secondary roots are produced due to the division of a meristematic tissue called
pericycle
18
The smooth texture of the monocot stem is generally due to the absence of the porous swelling that facilitates gaseous exchange in this organ of the plant. This structure is called
lenticel
19
Kangkon, ampalaya, and camote tops are easily chewed because of the absence of supporting and strengthening tissue called
sclerenchyma
20
Photosynthesis occurs also in other organs of the plant as specialized function. A modified stem capable of food producion is called
cladophyll
21
Senescence is yellowing of leaves due to maturity and it is due to a hormone called
ethylene
22
Crystals are metabolic waste products of the cell that could not be excreted and therefore stored in an organelle called
vacuole
23
Short day plants are plants that bear flowers during the period of the year when nights are longer than daytime. The flowering of these kinds of pants is due to the action of the hormone
abscissic acid
24
The scientific name of watermelon is
C. lunatus
25
The increase in the girth of the stem of dicotyledonous plant is due to the division of a meristematic tissue called
vascular cambium
26
The meristematic tissue found in the periderm responsible for the production of the cork and the parenchyma is
phellogen
27
The synonym of family Leguminoseae is
Fabaceae
28
The plant that is considered the three of life simply because of the many uses of its stem, leaves, and fruits is
Cocos nucifera L.
29
Senescence is affected by ethylene but prevented by
cytokinins
30
Which is not under the family Leguminoseae
Lagenaria siceraria
31
Adjacent cell walls are cemented together by means of
middle lamella
32
The genetic constitution of an individual
genotype
33
Pterocarpus indicus Willd, the Philippine National Tree, represents a type of dry indehiscent fruit called
samara
34
Stomata are avenues for the exchange of gases in the leaves. When these evenues are located on both epidermis of the leaves, they are called
amphistomata
35
The scientific name of rambutan
Nephelium lappaceum
36
These are meristems found at the apices of the stem and the root mainly responsible for the increase in lenght of these plant organs are called
promeristems
37
An example of small fruit is
pineapple
38
Plants that grow on live trees or dead trunks but do not depend on them for water and nutrients
epiphytes
39
An indication that corm and rhizome are stems although they are generally below the ground is the presence of
node and internode
40
Bacillus thuringensis is
bacterium
41
Cork cells are derived from the division of the tissue called
cork cambium
42
Analyze the statements: I. An example of family Cucurbitaceae are: a) M. charantia b) C. sativum c) C. lunatus II. An example of family Leguminoseae are a) A. hypogaea b) Cajanus cajan c) V. radiata
Statements I and II are correct
43
The structure in plants located either at the upper, lower or both epidermis of the leaves responsible for exchange of gasses is known as
stoma
44
Several plants have the characteristic of becoming leafless during a year's growth. These plants that shed off their leaves are called
deciduous
45
The foolish seedling growth is associated with what kind of growth hormone?
gibberellins
46
Which does not belong to the group of forage crops?
R. communis
47
The transformation of one plastid to another like the transformation of leucoplast to chloroplast is manifested in the following instances
greening of a potato tuber
48
The scientific name of wheat is
Triticum aestivum
49
Tissues at the cell elongation region are
protoderm, ground meristem, and procambium
50
Cells containing nucleus of one specie but cytoplasm from both the parental species
cybrids
51
A plant in which a gene has been transformed through genetic engineering is called
transgenic plant
52
Which is not a kind of parallel venation
veinlets originate from a common point and project like the fingers of a palm
53
The process of introducing a recombinant DNA molecules into cells of bacteria plants or animal is called
transformation
54
The enlarged, fleshy root of some plants like Daucus carota, Ipomea batatas, Raphanus sativus, etc. is example of modified root doing the function
food storage
55
Bt corn is a variety of corn where the Bt gene has been inserted and makes corn resistant to
asiatic corn borer
56
The phloem tissue is found in the bark which is composed of
sieve tube, fibers, parenchyma and companion cell
57
This law states that additional farm inputs in excess of the required does not bring an increase in the amount of produce
diminishing returns
58
In some plants like acacia trees, the outer covering especially of the older portion of the stem that breaks, separatesand flakes off is the
phellem
59
Analyze the following statements: 1. The most colorful whorl of the flower is the petals and these attract insects for pollination. 2. Flowers that are inconspicuous are provided with mechanism responsible for attracting insects called showy or brightly colored leaves
both statements are correct or true
60
Which of these crops can be classified as an agronomic crops and horticultural crops based on their uses under Philippine condition?
mungbean
61
Which is not an example of root crops?
potato
62
The word cereal is derived from the name of the most important grain deity
the Roman Goddess Ceres
63
Which does not belong to the group
paragrass
64
Provided with tap root system in which the main root is capable of penetrating down the soil surface to seek water level and this explains why these plants are rather long lived. They are:
dicots
65
Geotropism is response of the plants to gravity. This response is an effect of growth hormone called
auxin
66
A type of sclerenchyma that is short and more or less cuboidal in shape that imparts gritty feeling when fruits containing them are eaten is called
sclereids
67
Scientific name of bitter gourd is
Momordica charantia
68
In coconut, Cocos nucifera L. the endosperm is classified into coconut meat and coconut water. The botanical term for the coconut meat is
solid endosperm
69
A condition exhibited by the plants bearing both pistillate and staminate flowers that may be derived from either the lateral or terminal bud is called
monoecious
70
Which is not a characteristic of dicotyledonous plants?
distinct nodes and internodes
71
The differential performance of genotypes in different environments is termed as
GE interaction
72
Mango's scientific name
Magnifera indica
73
Stomatal closure is not only due to deficiency of turgor pressure but also due to the action of hormones. It is affected by
abscissic acid
74
Based on habit, plants exist as trees, shrubs, and vines cling to a support or crawl on the soil surface and could not attain a vertical growth by itself because of the absence of
mechanical tissue
75
The pigment found in some plants that is soluble in water is known as
anthocyanin
76
Storing matured fruits in plastic bags
enhances
77
Which does not belong to the Crucifer family?
B. alba
78
The botanical classification of agricultural crops using the scientific names is an accepted means of plant classification worldwide and it was found by the scientist.
Linneaus
79
The component of variation that is due to genotypic differences among individuals within a population is called
genotypic variation
80
Corn or Zea mays L. is a monicot plant that uses its terminal bud for the formation of the staminate flower and the lateral bud in the formation of the pistillate flower. Such condition exhibited by this plant is known as
monoecious condition
81
The most common type of cell and tissue in the plant body is
parenchyma
82
A tissue found only in the dicot but not in the monocot root and stem as well as dicot stem is
endodermis
83
Is an irreversible increase in the size of the organism
growth
84
A strengthening tissue present in the plant that can be extracted and can be transformed into economic products like rope, jute sack, cotton balls or cloth is
fibers
85
Water is translocated from the basal part of the plant, the root, to the upper parts, the stem, the leaves, the flowers or the fruits via two members of the conducting tissue namely
tracheids and vessels
86
The appearance if a plant with respect to a particular character
phenotype
87
Modification in the expression of a dominant gene by another non-allelic dominant gene is known as
gene interaction
88
Stems of monocot plants are generally small compared to the dicot plants because of the absence of meristematic primary tissue called
vascular cambium
89
Oryza sativa L. Is the Filipino's staple food and it represents a kind of indehiscent fruit called
caryopsis
90
The tissue found in the root but not in the stem is known as
endodermis
91
Characters governed by several genes with small effects are known as
quantitative
92
Fruits are derived from one flower and several ovaries
aggregate
93
Storage plastids store starch, oil, and proteins and are called
leucoplast
94
The ultimate origin of all the primary tissues in the root and the stem is
apical meristem
95
Analyze the following statements: 1. Endospermic or albuminous seeds contain endosperm for food storage 2. Corn and rice are two plants whose seeds are classified as non endospermic or exalbuminous
statement 1 is correct, statement 2 is incorrect
96
A leaf is held to the stem by a petiole, a leaflet to the rachis by a petiolule, a solitary flower to the stem by a peduncle and a flower in a cluster by
pedicel
97
The observable variation present in a character in a population is called
phenotypic variation
98
Analyze the following statements: 1. Teeminal bud are necessary for the increase in the height of the plant as well as for fruit formation 2. Lateral buds are necessary for fruit formation only
statement 1 is true, statement 2 is false
99
Magnifera indica L., our national fruit, is what type of fleshy fruit?
fleshy drupe