MCQs on Fermentation Process
1. Monascus purpureus is utilized in the production of
A. citric acid
B. ethanol
C. statins
D. streptokinase
Answer: : C.
2. The type of fermentation observed in yeasts is
A. acrylic fermentation
B. lactic acid fermentation
C. pyruvic fermentation
D. alcoholic fermentation
Answer: : D.
3. In lactic acid fermentation, the final electron acceptor is:
A. Lactic acid
B. Pyruvate
C. Oxygen
D. NAD
Answer: : B.
4. Which of these is not a product of fermentation?
A. Lactate
B. Oxygen
C. Carbon dioxide
D. Ethanol
Answer: : B.
5. Which of the following is not a vegetable or fruit-based fermented product?
A. Wine
B. Sauerkraut
C. Beer
D. Vinegar
Answer: : D.
6. One of the most commonly used fermented cereal amongst these is
A. Wheat
B. Bread
C. Rice
D. Yoghurt
Answer: : B.
7. Glucose molecule during the process of glycolysis is broken down into
A. Four pyruvic acid
B. Three pyruvic acid
C. Two pyruvic acid
D. One pyruvic acid
Answer: : C.
8. Fermentation occurs in the
A. presence of oxygen
B. absence of oxygen
C. presence of nitrogen
D. presence of carbon
Answer: : B.
9. The least yield of ATP is observed in
A. aerobic respiration
B. anaerobic respiration
C. fermentation
D. same in A., B., and C.
Answer: : C.
10. Anaerobic respiration by yeast produces
A. CO2
B. Wine and Beer
C. Alcohol
D. All of the above
Answer: : D.
MCQs on Hydroponic System
1. Which of these is the fibre obtained from the coconut’s husk
A. Perlite
B. Vermiculture
C. Coir
D. Rockwool
Answer: : C.
2. The form of hydroponics that does not require a growing medium at all is
A. Aquaculture
B. Static solution culture
C. Medium culture
D. Aeroponics
Answer: : D.
3. Plants with larger roots can be cultivated with which of the following types of hydroponics
A. Ebb and flow system
B. Drip system
C. Nutrient Film technique
D. None of these
Answer: : C.
4. Hydroponics is a method of cultivation of plants without the use of
A. water
B. air
C. soil
D. sunlight
Answer: : C.
5. Which of the following is not true about hydroponics?
A. Requires high investment
B. Technical knowledge required
C. Can be misused to cultivate banned crops
D. Plants through hydroponics cannot be cultivated everywhere
Answer: : D.
6. Salts and water in hydroponic plants are absorbed by
A. Leaves
B. Stem
C. Roots
D. Outer Layer of plants
Answer: : D.
7. The scientist who used nutrient culture solution in hydroponic cultures was
A. Knop
B. Sachs
C. Wallace
D. Webster
Answer: : A.
8. Deficiency of mineral nutrition does not cause which of these
A. Chlorosis
B. Etiolation
C. Necrosis
D. Shortening internode
Answer: : B.
9. Roots of a plant in hydroponics are submerged in a solution of dissolved _________
A. fertilizers
B. oxygen
C. mineral salts
D. chemicals
Answer: : A.
10. Which of these plants may not be suitable for cultivation through hydroponics
A. Tomatoes
B. Carrot
C. Cucumber
D. Strawberries
Answer: : B.
MCQs on Plant Hormones
1. Indole-3-acetic acid is the most common naturally occurring plant hormone of _______ class
A. Gibberellin
B. Auxin
C. Ethylene
D. Cytokinin
Answer: : B.
2. This hormone is not a growth inhibitor
A. Dormin
B. Abscisic acid
C. Ethylene
D. IAA
Answer: : D.
3. ___________ is a gaseous plant hormone
A. IBA
B. Ethylene
C. Abscisic acid
D. NAA
Answer: : B.
4. A widely used rooting hormone is
A. 2,4, -D
B. NAA
C. 2,4,5 – T
D. Cytokinin
Answer: : B.
5. The leaf defoliator utilized in the Vietnam war by the USA known as “Agent Orange” was
A. 2,4, -D and 2,4,5 – T
B. Ethylene
C. 2,4, -D and NAA
D. 2,4,5 – T, ethylene and NAA
Answer: : A.
6. Transport of auxin is
A. non-polar
B. symplast
C. apoplast
D. polar
Answer: : D.
7. Formation of the nodule is induced by
A. IAA
B. NAA
C. IBA
D. Both A. and C.
Answer: : A.
8. This is the precursor of Indole-3-acetic acid
A. Methionine
B. Tryptophan
C. Glycine
D. Isopentynyl pyrophosphate
Answer: : B.
9. This bioassay is used to detect the presence of auxin
A. Only tobacco pith culture
B. Tobacco pith culture and Avena curvature test
C. Tobacco pith culture and Split pea stem curvature test
D. Split pea stem curvature test and Avena curvature test
Answer: : D.
10. Which of these is not a function of auxin?
A. inducing callus formation
B. inducing dormancy
C. enhancing cell division
D. maintaining apical dominance
Answer: : B.
Plant Taxonomy MCQs
1. Which of these is the most advanced phylogenetically among the dicotyledonous families?
A. Scrophulariaceae
B. Acanthaceae
C. Umbelliferae
D. Compositae
Answer: : D.
2. The substitute for the newly collected specimen when the original type material is missing in a herbarium is entitled as
A. Holotype
B. Neotype
C. Lectotype
D. Isotype
Answer: : B.
3. If all the puddles and ponds are destroyed, the entities likely to be destroyed are
A. Plasmodium
B. Ascaris
C. Leishmania
D. Trypanosoma
Answer: : A.
4. In the five-kingdom system of classification, into which kingdom would you classify nitrogen-fixing organisms and archaea?
A. Fungi
B. Plantae
C. Protista
D. Monera
Answer: : D.
5. This is considered as a demerit of the ‘Engler and Prantl’ in the system of classification
A. Gymnosperms are placed between monocotyledons and dicotyledons
B. Dicotyledons are placed after monocotyledons
C. Dicotyledons are placed before monocotyledons
D. Gymnosperms are placed among Dicotyledons
Answer: : B.
6. Phenetic classification is based on
A. Observable characteristics of existing entities
B. The ancestral lineage of existing organisms
C. Dendrograms based on DNA characteristics
D. Sexual characteristics
Answer: : A.
7. Difference between the natural system of plant classification and artificial system of classification is
A. Considers only one vegetative character
B. Considers all the similarities between plants
C. Considers only one floral character
D. All of the above
Answer: : B.
8. This system of classification was used by Linnaeus
A. Phylogenetic system
B. Natural system
C. Artificial system
D. Asexual system
Answer: : C.
9. Pick the right sequence of taxonomic categories
A. division-class-family-tribe-order-genus-species
B. division-class-family-order-tribe-genus-species
C. division-class-order-family-tribe-genus-species
D. division-order-class-family-genus-tribe-species
Answer: : C.
10. ‘New Systematics’ term was coined by
A. Linnaeus
B. Bentham and Hooker
C. A.P. de Candolle
D. Juliane Huxley
Answer: : D.
MCQs On Xylem Parenchyma
1. Which of the following tissue is involved in water conduction?
A. Xylem and Phloem
B. Tracheids and trachea
C. Sclerenchyma and Parenchyma
D. Xylem fibres and bast fibres
Answer: : B.
2. Which of the following plant species lack xylem vessels?
A. Rose
B. Pinus
C. Gnetum
D. Mango tree
Answer: : B.
3. Xylem consists of ________.
A. Tracheids, Fibers and parenchyma
B. Tracheids, vessels and companion cells
C. Tracheids, fibres, vessels and parenchyma
D. Tracheids, Companion cells, Sieve cells and vessels
Answer: : C.
4. Which of the following vessels is considered as the most advanced water-conducting element?
A. Multiple vessels
B. Tracheids
C. Annular tracheids
D. Simple vessels
Answer: : D.
5. The only living element of the xylem tissue is ______.
A. Vessels
B. Tracheids
C. Xylem Fiber
D. Xylem Parenchyma
Answer: : D.
6. Which of the following is not the characteristic of xylem parenchyma?
A. They have a prominent nucleus
B. The cell wall is thick, made of chitin
C. Only living cells of the xylem tissue
D. Cells have large vacuoles and are colourless
Answer: : B.
7. Vessels and tracheids are absent in _______.
A. Equisetum
B. Cycas
C. Gnetum
D. Marsilea
Answer: : B.
8. The process by which plant tissues becomes woody is _______.
A. Rectification
B. Calcification
C. Suberisation
D. Lignification
Answer: : D.
9. The living tissue with thin-walled, isodiametric and intercellular spaces characteristics is ______.
A. Collenchyma
B. Aerenchyma
C. Parenchyma
D. Prosenchyma
Answer: : C.
10. The development of wood parenchyma develops from______.
A. Ray initials
B. Collenchyma cells
C. Fusiform initials
D. All of the above
Answer: : C.
Parenchyma Cells MCQs
1. Mostly, the flesh of fruit is made of
A. Collenchyma
B. Parenchyma
C. Meristem
D. Schlerids
Answer: : B.
2. Prosenchyma is a type of
A. Chlorenchyma
B. Collenchyma
C. Sclerenchyma
D. Parenchyma
Answer: : D.
3. The tissue where cells are thin-walled, living, isodiametric along with intercellular spaces is
A. Arenchyma
B. Prosenchyma
C. Collenchyma
D. Parenchyma
Answer: : D.
4. The plant tissue with the following characteristics is –
– Oval/round-shaped cells
– Cells have a living protoplasm and are dense
– Cell wall is made of cellulose or hemicellulose
– Thin-walled cells
A. Parenchyma
B. Collenchyma
C. Scherenchyma
D. Epidermis
Answer: : A.
5. The main purpose that the aerenchyma serves in Parenchyma is
A. Offers flexibility
B. Renders Buoyancy
C. Provides structural framework
D. Provides mechanical support
Answer: : B.
6. Which of this is not a function that Parenchyma performs
A. Stores nutrients and food
B. Aids in regeneration, healing and repairs wounds
C. Provides foundation and support
D. None of these
Answer: : D.
7. The tissue that provides maximum mechanical strength to the plant is
A. Xylem
B. Phloem
C. Parenchyma
D. Collenchyma
Answer: : A.
8. Parenchyma cells in the spongy mesophyll exhibit large intercellular spaces promoting:
A. To become nutrients for the future germinating embryo
B. Greater exposure to carbon dioxide
C. To distribute pressure evenly through the structure
D. No specific reason
Answer: : B.
9. Vessels are found in
A. Most of the angiosperms and few gymnosperms
B. All angiosperms and some gymnosperms
C. All angiosperms, all gymnosperms and some pteridophytes
D. All pteridophytes
Answer: : A.
10. The main difference between parenchyma, collenchyma and sclerenchyma is that
A. Parenchyma is involved in photosynthesis, secretion and storage
B. Collenchyma is involved in support and transportation of nutrients
C. Sclerenchyma is involved in support, protection, transportation of nutrients and water
D. All of these
Answer: : D.
Apiculture MCQs
1. Amongst honey bees, the workers are:
A. Female
B. Male
C. Both females and males
D. Hermaphrodite
Answer: : A.
2. The generic name of which of these is Apis?
A. Fish
B. Honey bee
C. Lac insect
D. Prawn
Answer: : B.
3. Apis dorsata is used to refer to
A. Little bee
B. Indian bee
C. European bee
D. Rock bee
Answer: : D.
4. The honey bee is of greatest use to mankind as:
A. It is of medicinal benefits
B. Helps in cross-pollination
C. We get honey from them
D. None of these
Answer: : B.
5. Nature of honey is
A. Acidic
B. Alkaline
C. Neutral
D. Turns basic after a few days
Answer: : A.
6. Honey is
A. Nectar of a flower
B. Nectar stored in the honey sac
C. Nectar mixed with saliva and stored in the honey sac
D. Nectar and water sucked by honey bee
Answer: : C.
7. The bee carries the pollen back to its colony on:
A. Its body
B. Its middle legs
C. Its front legs
D. Its rear legs
Answer: : D.
8. The chief constituent of honey is
A. Disaccharides
B. Monosaccharide
C. Polysaccharides
D. Fats
Answer: : B.
9. For how long does a worker bee live in the summer?
A. For 2 weeks
B. For 2 months
C. For 4 months
D. For 6 months
Answer: : B.
10. The development of a male bee (drone) takes how long?
A. 16 days
B. 19 days
C. 22 days
D. 24 days
Answer: : D.
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