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  • Jaybee Sanchez

  • 問題数 100 • 8/31/2024

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    問題一覧

  • 1

    Among the invertebrates, only insects have this characteristics

    3 pairs of jointed legs

  • 2

    Where are the cerci located in insects

    abdomen

  • 3

    Where are the wings found in insects?

    thorax

  • 4

    Where are the genitalia found in insects?

    abdomen

  • 5

    Where are the prolegs/pseudolegs located in "caterpillars?"

    abdomen

  • 6

    Which of the following encloses the stylets in insects with piercing- Sucking mouth type?

    labium

  • 7

    Which of the following is not a characteristic of arthropods?

    radial symmetry

  • 8

    This sensory organ is not found among insects

    chelicera

  • 9

    The first segment of the insect anternna is called

    scape

  • 10

    The second segment of the insect antenna is called

    pedicel

  • 11

    The shape of the majority of plant pathogenic bacteria is

    rod

  • 12

    The shape of the majority of plant pathogenic bacteria is

    rod

  • 13

    He developed the substage condenser for the microscope

    Abbe

  • 14

    He showed that fire blight of pear and twig blight of apple were Caused by a bacterium

    Thomas Jonathan Burrill

  • 15

    Which among the following does not belong to the five major Genera of phytopathogenic bacteria

    Bacterium

  • 16

    This part is not found in the cell envelope of a Gram positive Bacteria

    outer membrane

  • 17

    Antibiotic that interferes with peptidoglycan synthesis and prevents Cell wall synthesis in growing bacterial cells

    penicillin

  • 18

    A bacterial surface appendage responsible for motililty

    flagella

  • 19

    This part is missing in mollicutes

    cell wall

  • 20

    Flagellation pattern characterized by the presence of a single Flagellum

    monotrichous

  • 21

    Refers to the genetic material of bacteria

    deoxyribonucleic acid

  • 22

    A fungal mycelium appearing on rotten fruit is an example of

    sign

  • 23

    Aflatoxin is formed by

    Aşpergillus flavus

  • 24

    Fungi in the Philippines reproduce mainly by forming

    asexual spores

  • 25

    Fungal pathogens are often isolated using this technique

    tissue planting

  • 26

    Group of microorganisms that can directly penetrate the intact host Surface

    fungi

  • 27

    A fungal structure used for attachment to the host surface

    appressorium

  • 28

    Some fungal pathogens form this structure to obtain nutrients from The host

    haustorium

  • 29

    In the absence of the plants in the field, fungal pathogens will not Survive in

    human beings

  • 30

    A characteristic of fungi

    eukaryotic

  • 31

    The presence of different nuclei n the same mycelium is termed as

    heterokaryosis

  • 32

    Some nematodes serves as And transmit plant viruses Which contributes in disease development.

    vectors

  • 33

    For annual crops, the MAXIMUM number of nematodes parasites can Be recovered during

    near harvest stage

  • 34

    This is the outer non-cellular layer cOvering the nematode body and Is shed-off during molting

    cuticle

  • 35

    Refers to the possession of both functional male and female Reproductive organ

    hermaphroditic

  • 36

    The term for eggs hatching within the uterus followed by EXPULSION Of living young

    oviviparous

  • 37

    The casual organism of the root knot of most vegetables is

    Meloidogyne incognita

  • 38

    This does nota characterize a root-feeding nematode

    Causes death of plants as a typical symptom

  • 39

    Which among the following is nota type of root feeding nematodes

    Necrotrophic parasite

  • 40

    Number of molting in plant parasitic nematodes

    4

  • 41

    The infective stage of root knot nematode is during

    Second stage juveniles

  • 42

    Which is not included in Koch’s postulates?

    colonization

  • 43

    A yellowing caused by some factor other than light, such as by a Virus or mycoplasma

    Chlorosis

  • 44

    Which of the following is a barrier to virus movement through the Plant?

    Movement from the first infected cell

  • 45

    A seed with a virus is an important source of infection since the Seed introduces

    The virus into the crop at a very early stage

  • 46

    The main components of plant viruses are

    either DNA or RNA + protein

  • 47

    Plant pathology is the study of

    plant diseases

  • 48

    He is considered the father of plant pathology.

    Heinrich de Bary

  • 49

    A blight pathogen will affect the plant’s capacity to

    Photosynthesize

  • 50

    The Autogenetic Theory of Disease states that:

    Pathogens are outgrowths of the disease and not the cause

  • 51

    Rye may induce this kind of affliction

    St. Anthony’s Fire

  • 52

    The pest population density in which the cost of control is much Higher than the expected cost of harvest of the protected crop

    Economic injury level

  • 53

    The man-directed control of insect pests by employing the use of Natural enemies

    biological control

  • 54

    The term given for crop destruction, injury or loss of value caused By the feeding activity of different pests

    indirect damage

  • 55

    A biological control organism that usually lives inside the body of its Host and consumes only one host to complete its life cycle

    parasite

  • 56

    The most destructive avian pest that attacks rice and other small Grains

    Philippine weaver

  • 57

    A serious pest of corn that attacks all parts of the plant except the Roots

    cutworm

  • 58

    Synchronous planting is an example of

    cultural control

  • 59

    Mummification of fruits is an example of

    symptom

  • 60

    A diseased plant is considered a

    suscept

  • 61

    Which among the following does not describe what weeds are?

    important

  • 62

    Which among the following is not true about the characteristics of Weeds?

    not adapted to competition

  • 63

    Weeds that originate from other areas and are introduced to the Area where they are found

    exotic

  • 64

    Weeds that grow and complete their life cycle under dry or wet Condition of the soil

    upland

  • 65

    Lowland weeds with their roots attached to the soil but the shoots Are aerial/above-water

    emerged

  • 66

    Weeds that reproduce mainly through seeds, and grow within a Year

    annuals

  • 67

    Weeds which are members of Family Gramineae

    grasses

  • 68

    Weeds that belong to Family Cyperaceae

    sedges

  • 69

    Weeds with rounded hollow stems and fibrous root system

    grasses

  • 70

    Weeds with triangular stems and parallel leaf venation

    sedges

  • 71

    A toxic substance which is readily available and kills pest instantly

    pesticide

  • 72

    A group of rodenticides that are slow-acting and are usually referred To as anti-coagulant rodenticides

    chronic rodenticides

  • 73

    The ability of populations of pests to survive doses of an insecticide Which are normally lethal

    insecticide resistance

  • 74

    An insecticide that is absorbed by and translocated in the plant and The insect acquire the poison through feeding

    systemic insecticide

  • 75

    A liquid pesticide formulation that does not dissolve in water but is Dissolved in organic solvents

    emulsifiable concentrates

  • 76

    A solid pesticide formulation applied undiluted where the active Ingredient is combined with inert ingredients such as clay to form Particles about the size of a coarse sugar

    granule

  • 77

    Pesticide category symbolized by a red band and a skull and Crossbones

    Category l

  • 78

    Which is not an expression of active unit in pesticide labels?

    ppm

  • 79

    A universally accepted name given a pesticide by an appropriate Professional organization

    common name

  • 80

    This is an effective seed treatment fungicide against corn downy Mildew

    metalaxyl

  • 81

    In the chewing type of mouthparts, this component cuts and grinds The food

    mandible

  • 82

    This body region bears the legs and wings of the insect

    thorax

  • 83

    The basal segment of an insect leg

    coxa

  • 84

    Termites have this type of antenna

    moniliform

  • 85

    This type of antenna is found among scarabaeid beetles

    lamellate

  • 86

    This elbow-like type of antennae is found among ants

    geniculate

  • 87

    An insect that feeds on a number of unrelated species of plants

    polyphagous insect

  • 88

    The collective term for parasitic and predatory insects

    entomophagous insect

  • 89

    he growth stage/s of the rice plant that is/are most preferred by The rice bug

    both b and c

  • 90

    Substances such as sex pheromones that lure insects and can be Used as a means of control

    attractants

  • 91

    Protein synthesis occurs in

    ribosomes

  • 92

    Bacteria cannot enter the plant through

    intact host surface

  • 93

    Published the first book on pytobacteriology “Bacteria in Relation to Plant Diseases”

    Erwin Frank Smith

  • 94

    The main means of reproduction of bacteria

    Binary fission

  • 95

    The five-carbon sugar compound of DNA

    RibOse

  • 96

    The building blocks of proteins is called

    Amino acid

  • 97

    Metabolic pathway that converts glucose to pyruvate

    Glycolysis

  • 98

    A group of pathogens that infect a set of plant varieties

    Race

  • 99

    A virus that infects bacteria

    Bacteriophage

  • 100

    A microbial product other than an enzyme which causes obvious Damage to plant tissues, and which is believed to be involved in Disease development

    Phytotoxin