PLANTFLIX ACADEMY MOCK TEST 3
Plant Science Mastery Quiz
Test your knowledge with our comprehensive quiz focused on seed policy, plant physiology, and food preservation! This quiz is designed for students, teachers, and anyone interested in plant science and agriculture.
- 30 multiple-choice questions
- Covers key topics in seed technology and food preservation
- Perfect for self-assessment and learning
Establishment year of new seed policy
2001
2002
2003
2004
Accelerated Ageing Test is used for
Seed germination
Sedd quality
Seed viability
Seed vigour
Which one of the following is different
Growth test
Hiltner Test
Sand moist test
Cold Test
When the vapour pressure of the seed is more. What will be the effect on seed?
Quick dry
Slow dry
Constant
None of these
Stomata of monocot surrounded by
Dumblled shaped guard cell
Bean shaped guard cell
Oval shaped guard cell
Circle shaped guard cell
Perisperm belongs to
Nucellus
Intugement
Chalaza
Aleurone layer
The effect of GA on seed germination is/are
Increase imbibition activity
Decrease enzymatic activity
Repture of aleurone layer
Increase nutrient content
The rate of cell wall degradation determines the
Rate of diffusion of α-amylase through the endosperm
Rate of diffusion of α-amylase through the plastids
Both above option are night
None of the above
Endosperm cell walls are a potential barrier
To the diffusion of hydrolytic enzymes from the aleurone
To the diffusion of hydrolytic enzymes from the pericarp
To the diffusion of hydrolytic enzymes from the embryo
All of the above
At the stage of germination, the endosperm is
Active tissue
nonliving tissue
Mobilized tissue
Degenerated tissue
α-Amylase is secreted from the
Living aleurone cells
Non living aleurone cells
Nucellus cells
All of the above cells
The Indian seeds act 1966 has been in force since
October 12, 1969
September 9, 1972.
7th March, 1963
None of these
The national seeds corporation (NSC) was initiated under ICAR and registered on
October 12, 1969
October 2, 1969
7th March, 1963
September 9, 1972.
Cuprous oxide act as
Seed disinfectant
Seed protectant
Seed disinfestants
None of these
Which one of the following is different based on mode of pollination?
Cleistogamy
Chasmogamy
Homogamy
None of these
Which one of the following mechanism is different from other in the given option?
Heterostyly
Dichogamy
Herkogamy
Self-incomatibility
Which on of the following is different
Polyploidy breeding
Mutation breeding
Pedigree method
Bulk method
In selection through hybridization plants are selected for crop improvement from
Base population
First filial generation
Second filial generation
Parental population
Isolines are developed for
Biotic stresses
Abiotic stresses
Domestication
None of these
When the desirable genes are moving with undesirable genes is called as
Linkage mass
Linkage map
Linlkage drag
Isolines linkage
In crop improvement plant selection is effective against
Additive gene action
Dominant gene action
Epistatic gene action
None of these
Isolines are developed by
Selfing of sefl pollinated crop
Selfing of cross pollinated crops
Back crossing
Pedigree method
Food spoilage is due to
Micro-organisms and enzymes
Micro-organisms and excess production
Enzymes and excess production
All of the above
Non- perishable food items are those which
Do not spoil at all
Take long time to spoil
Spoil easily
Spoil according to where they are kept
Shelf life of food is related to
Freshness of food
Quality of food
Decomposition of food
Time limit for which food can be used
Bacterial soft rot,caused by
Erwinia carotovora
Erwinia carotovora
Clostridium botulinum
Rhizopus nigricans
Fruits and vegetables discolor when bruised or cut due to
Caramelization
Sulfiting
Dehydration
Enzymatic browning
The main reason for preserving food is to
Improve its colour and taste
Increase its shelf lie
Make costly food available
Change its texture
What is blanching?
Removal of microorganisms
Keep out of microorganisms
Killing of microorganisms
Heating to inactivate enzymes
Preservation of food means
To keep food safe
To retain quality of food
To prevent decomposition of food
All the above
Presence of ----------- in water indicates fecal contamination
Coliforms
Bacillussp
Staphylococcus sp.
) None of the above
Refrigerated canned meat product can be spoilt by .........
Streptococcus
Bacillus
Pseudomonas
Saccharomyces
Freeze drying is used for dehydration /drying of
High value liquid foods like coffee , juices etc
Fruit slices
Cereal grains
Live stock products
Freezing Point of pure water
0 degree
-4 degree
-2 degree
4 degree
Which one of the following prevents the growth of most food borne microorganisms?
Freezing
Refrigeration
Commercial refrigeration
All
Dehydrated foods will be
Dry
Hygroscopic
Bone dry
High Relative Humidity
Cyropreservation is done at
273 C
) -196 C
73 C
0 C
Leafy vegetables is recommended as
Highly perishable
Semi perishable
Perishable
Non perishable
Most spoilage bacteria grow at
Acidic pH
Alkaline pH
) Neutral pH
All of these
Quick freezing of food is accomplished by
Direct immersion of food or packaged foods in a refrigerant
Indirect contact with refrigerant
Air blast
All
Which one the process is the reverse of freezing?
Drying
Thawing
Blanching
Aseptic processing
Plasticity in plant growth means that
Plant roots are extensible
Development according to environment
Stems can extend
None of the above
Which hormone is formed in leaves and helps in the blooming of the flowers?
Traumatic
Auxin
Cytokinin
None of the above
Plants can respond to light, touch, gravity, and seasonal changes due to
Cytokinin
Auxin
Phenyl alanin
Ethylene
Negative gravitropism is
Upward growth of shoot
Upward growth of root
Downward growth of roots
Downward growth shoot
Kinetin is an example of
Auxin
Cytokinins
Gibberellic
Abscisic acid
Who determined auxin enhanced cell elongation and stem elongation
Frits Went
Kent
Phill Olaiya
Phipps Austin
Which of the following statement is / are not correct?
Abscisic acid does not occur when the auxin concentration is high on distal end of root zone
Auxin doest not induce parthenocarpy
IAA promote root formation
All are correct
Which hormone is responsible is responsible for changing the sex ratio?
Florigen
Auxin
Cytokinin
Gibberellins
Cytokinin were first isolated from
Coconut milk
Apple root
Coconut oil
Potato tuber
Fairchild Mule is the cross between
Carnation X Sweet William
Wheat X Rye
Radish X Cauliflower
Carnation X french bean
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