NEET Biology Growth and Development MCQs Set 03

Question: Name the hormone responsible for activity of chlorophyll in leaves.

• a) Cytokinin
• b) Ethylene
• c) Gibberrelin
• d) ABA

Answer: Cytokinin

Question: Which of the following is simple, volatile hormone ?

• a) Ethylene
• b) ABA
• c) IAA
• d) Cytokinin

Answer: Ethylene

Question: Which of the following statement about ABA is inappropriate ?

• a) Induces ripening of fruit
• b) Inhibits seed germination
• c) Closes stomata
• d) Induces dormancy of bud

Answer: Induces ripening of fruit

Question: Which hormone is absent in dormnant seed ?

• a) Ethylene
• b) GA
• c) Auxin
• d) ABA

Answer: Ethylene

Question: Which of the following statement is true for abscisic acid ?

• a) Inhibits transcription of gene
• b) Reduces senescence
• c) Opens stomata
• d) Acts as weedicide

Answer: Inhibits transcription of gene

Question: By which physiological process water enters into seed coats of seed ?

• a) Imbibition
• b) Plasmolysis
• c) Diffusion
• d) Endosmosis

Answer: Imbibition

Question: What is called the effect of daylight on plant ?

• a) Photoperiodism
• b) Photooxidation
• c) Photonastism
• d) Phototropic

Answer: Photoperiodism

Question: Which of the following is correct option for seed germination

• a) Emergance of primary root forms from radicle
• b) No root formation
• c) Development of primary root
• d) Development of primary root

Answer: Emergance of primary root forms from radicle

Question: What is the rate of respiration during seed germination ?

• a) Rapid
• b) Zero
• c) Slow
• d) Steady

Answer: Rapid

Question: Which of the following group show viviparous germination ?

• a) Rhizophora and Avicinnia
• b) Orchid and Rhizophora
• c) Soyabean and Xanthium
• d) Maize and Bean

Answer: Rhizophora and Avicinnia

Question: Which of the following is found in high concentration in healthy leaf ?

• a) Auxin
• b) Ethylene
• c) Gibberrelin
• d) Cytokinin

Answer: Auxin

Question: From the given below which is short-day plant ?

• a) Paddy
• b) Wheat
• c) Oat
• d) Opium

Answer: Paddy

Question: Which of the following is long-day plant ?

• a) Oat
• b) Soyabean
• c) Vinca
• d) Paddy

Answer: Oat

Question: Which hormones are obtained from fungi and fish, respectively ?

• a) Gibberrelin and cytokinin
• b) IAA and IBA
• c) Gibberrelin and 2-4 D
• d) Gibberrelin and zeatin

Answer: Gibberrelin and cytokinin

Question: Vernalization means

• a) Speedy flowering at low temperature
• b) Effect of light on growth
• c) Flowering at high temperature
• d) Growth Graph

Answer: Speedy flowering at low temperature

Question: Flowering due to low temperature is

• a) Vernalization
• b) Thermonasty
• c) Nutation
• d) Photonasty

Answer: Vernalization

Question: If temporary light is made available for dark phase of long day plant, what is observed ?

• a) Flowering will not occur
• b) Increase in flowering
• c) No change
• d) Decreasing in flowering

Answer: Flowering will not occur

Question: Which is an essential temperature for more production of wheat by noting effect of low temperature ?

• a) 1to10°C
• b) 25to30°C
• c) 28to30°C
• d) 1to 20°C

Answer:  1to10°C

Question: By which condition flowering take place in short day plant ?

• a) Short day and long night
• b) Short day and short night
• c) Short night
• d) Long day and short night

Answer: Short day and long night

Question: Which type of light is required in long day plants for flowering ?

• a) More light than alloted period
• b) Red light
• c) Less light than alloted time period
• d) All of the given

Answer: More light than alloted period

More Questions.....................................

Question: Where is phytochrome pigment present ?

• a) Phanerogams
• b) Bryophyta
• c) Algae
• d) Fungi

Answer: Phanerogams

Question: Which physilogical reaction is essential for development leaftendril ?

• a) Circumnutation
• b) Nastism
• c) Tropism
• d) Curvature

Answer: Circumnutation

Question: Photoperiodism is

• a) Effect of length of day on flowering
• b) Irregular growth based on light
• c) Flowering plant
• d) Time table of day-night based on light

Answer: Effect of length of day on flowering

Question: Which hormone is essential in pineapple for inducing flowering, without season ?

• a) NAA
• b) Abscisic acid
• c) Zeatin
• d) Ethylene

Answer: NAA

Question: Which of the following plant shows rotational movement ?

• a) Hydrilla
• b) Mucilagenous fungi
• c) Chlamydomonas
• d) Volvox

Answer: Hydrilla

Question: Which of the following is example of amoeboid movement ?

• a) Fungi
• b) Hydrilla
• c) Gamates of bryophyta
• d) Algae

Answer: Fungi

Question: Which of the following option shows an examples of cilliary movement ?

• a) Chlamydomonas
• b) Zoo spores and Bryophyta
• c) Slime mould
• d) None of the above

Answer: Chlamydomonas

Question: Which plant show movement from intense light to dim light ?

• a) Volvox
• b) Lotus
• c) Hydrilla
• d) Plankton

Answer: Volvox

Question: Which of the following show movement by chemical ?

• a) Male gametes of bryophytes and pteridophytes
• b) Male gamets of fungi and algae
• c) Male gametes of gymanosperm and and angiosperms
• d) Flower of tulip and croccus

Answer: Male gametes of bryophytes and pteridophytes

Question: Which of the following is an example of thermonasty ?

• a) Crocus
• b) Sunflower
• c) Mimosa
• d) Lotus

Answer: Crocus

Question: In which structure thigmonasty is observed in simple form ?

• a) Leaf tendril
• b) Root apex
• c) Shoot apex
• d) Leaf apex

Answer: Leaf tendril

Question: Demonstration of cytoplasmic movement in living cell can be observed in

• a) Leaf cells of tradescantia
• b) Cells of vascular bundle
• c) Medullary cells
• d) Onion cells

Answer: Leaf cells of tradescantia

Question: Which factor increases in plant in absence of light ?

• a) Length of internode increases, growth of plant in longitudinal axis
• b) Area of leaf-blade increase, rate of transpiration increases
• c) Availability of mineral ion, increases mineral nutrition
• d) Availability of water, increases ascent of sap.

Answer: Length of internode increases, growth of plant in longitudinal axis

Question: Sensitivity of leaves in Mimosa, depends on which factor ?

• a) Touch
• b) Water
• c) Light
• d) Temperature

Answer: Touch

Question: Movement of cilia in Drocera, depends on which factor ?

• a) Touch
• b) Osmosis
• c) Temperature
• d) Light

Answer: Touch

Question: If cells obtain ability of cell division in certain circumstances, it is called

• a) De-Deferentiation
• b) Undifferentiation
• c) Cleavage
• d) Differentiation

Answer: De-Deferentiation

Question: In certain condition, dividing cell, loose their ability of cell division, it is called

• a) Undifferentiation
• b) De-differentiation
• c) Cleavage
• d) Differentiation

Answer: Undifferentiation

Question: Which organic chemicals are included in shoot with photoperiodism ?

• a) Gibberrelin
• b) Cytokinin
• c) Ethylene
• d) Auxin

Answer: Gibberrelin

Question: Motor cells of leaves and grass, shows which type of movement ?

• a) Osmotic movement
• b) Growth movement
• c) Locomotory movement
• d) Nastic movement

Answer: Osmotic movement

Question: Which activity in plant is observed due to ethylene ?

• a) Maturation of fruit
• b) Maturation of seeds
• c) Maturation of flower
• d) Matutiation of leaf

Answer: Maturation of fruit

Question: Which of the following type is improper for nastism ?

• a) Phototropism
• b) Hydronasty
• c) Photonasty
• d) Thermonasty

Answer: Phototropism

Question:  Which are the labelled part A and B ?

• a) Fruit and radicle
• b) Plumule and cotyledon
• c) Plumule and radicle
• d) Fruit and plumale

Answer: Fruit and radicle

Question:  Which is the labelled part A and B given in the figure ?

• a) Cotyledon and Hypocotyl
• b) Cotyledon and plumble
• c) Cotyledon and Epicotyl
• d) Fruit and hypocotyl

Answer: Cotyledon and Hypocotyl

Question: Which are the part labelled as A, B and C sequentially in the figure ?

• a) Seed coat, Endosperm, plumule
• b) Seed coat, cotyledon, plumule
• c) Plumule, radicle, cotyledon
• d) Cotyledon, plumule, embryo

Answer: Seed coat, Endosperm, plumule

Question: Mention part A and B, labelled in the figure.

• a) Hypocotyl, primary root
• b) Epicotyl, primary root
• c) Epicotyl, radicle
• d) Radicle, primary root

Answer: Hypocotyl, primary root

Question:  What is A and B in the given figure ?

• a) Senescence and death
• b) Death and senescence
• c) Growth and death
• d) Death and senescence

Answer: Senescence and death

Question: Which of the following type is improper for nastism ?

• a) Phototropism
• b) Hydronasty
• c) Photonasty
• d) Thermonasty

Answer: Phototropism

Question: Which of the following is incorrect for tropism ?

• a) Thigmotaxis
• b) Thermotropism
• c) Phototropism
• d) Hydrotropism

Answer: Thigmotaxis

Question: What is the direction of tropism ?

• a) Directional
• b) Oblique
• c) Undirectional
• d) Straight

Answer: Directional

Question: Which of the example is improper for tropic movement ?

• a) Mimosa
• b) Antherozoids of bryophytes
• c) Antherozoids of bryophytes
• d) Volvox

Answer: Mimosa

Question: With, what nutation is related ?

• a) Autonomous curvature movement
• b) Induced curvature movement
• c) Induced movement
• d) Autonomous movement

Answer: Autonomous curvature movement

Question:  Match the list :

Column I                                 Column II

(P) Volvox                                (i) Chemotaxis

(Q) Mimosa                              (ii) Phototaxis

(R) Antherozoids of bryophytes (iii) Movement / tropism

(S) Leaf tendril                         (iv) Thigmotropism

• a) (P-ii), (Q-iv), (R-i), (S-iii)
• b) (P-iv), (Q-iii), (R-ii), (S-i)
• c) (P-ii), (Q-iii), (R-iv), (S-i)
• d) (P-i), (Q-ii), (R-iii), (S-iv)

Answer:  (P-ii), (Q-iv), (R-i), (S-iii)

Question:  Match the list :

Column I                                            Column II

(P) Plasmodium of slime mould           (i) Ciliary movement

(Q) Chlamydomonas algae                 (ii) Circular movement

(R) protoplasm of tradenschantia leaf (iii) Rotational movement

(S) Protoplasm of hydrilla                  (iv) Amoeboid movement leaves

• a) (P-iv), (Q-i), (R-ii), (S-iii)
• b) (P-i), (Q-ii), (R-iii), (S-iv)
• c) (P-iv), (Q-iii), (R-iv), (S-i)
• d) (P-i), (Q-ii), (R-iii), (S-iv)

Answer: (P-iv), (Q-i), (R-ii), (S-iii)

Question:  Match the following :

Column I                                                                   Column II

(P) Zoospore of volvox                                         (i) Thermo taxis

(Q) Antherozoids of bryophytes and pteridophytes (ii) Thigmo taxis

(R) Diatoms                                                       (iii) Photo taxis

(S) Zoospores in oedogonium                              (iv) Chemo taxis

• a) (P-iii), (Q-iv), (R-i), (S-ii)
• b) (P-i), (Q-ii), (R-iii), (S-iv)
• c) (P-iv), (Q-iii), (R-ii), (S-i)
• d) (P-iii), (Q-ii), (R-i), (S-iv)

Answer: (P-iii), (Q-iv), (R-i), (S-ii)

Question:  Match the following

Column I                                                               Column II

(P) Opening of leaf blade                                 (i) Epinasty

(Q) Closing of leaves                                       (ii) Hyponasty

(R) Zigzag movement in apical bud                  (iii) Nutation

(S) Spiral and helical growth of tendrilar plants (iv) Circumnutation

(T) Pulsation in leaflets of indian telegraph plant (v) Variation

• a) (P-v), (Q-i), (R-iv), (S-iii), (T-ii)
• b) (P-i), (Q-ii), (R-iii), (S-iv), (T-v)
• c) (P-v), (Q-iv), (R-iii), (S-ii), (T-i)
• d) (P-v), (Q-i), (R-iv), (S-ii), (T-iii)

Answer: (P-v), (Q-i), (R-iv), (S-iii), (T-ii)

Question: Match the list :

Column I                 Column II

(P) Phototropism    (i) Water

(Q) Geotropism     (ii) Gravitation

(R) Hydrotropism   (iii) Light

(S) Thigmotropism (iv) Touch

• a) (P-iii), (Q-ii), (R-i), (S-iv)
• b) (P-iii), (Q-ii), (R-iv), (S-i)
• c) (P-iv), (Q-iii), (R-ii), (S-i)
• d) (P-i), (Q-ii), (R-iii), (S-iv)

Answer: (P-iii), (Q-ii), (R-i), (S-iv)

Question:  Match the list :

Column I                                   Column II

(P) Lotus and sunflower            (i) Hydronasty

(Q) Crocus and tulip                 (ii) Thigmonasty

(R) Due to turgidity of leauses  (iii) Thermonasty

(S) Mimosa                             (iv) Photonasty

• a) (P-iv), (Q-iii), (R-i), (S-iii)
• b) (P-ii), (Q-iii), (R-iv), (S-i)
• c) (P-i), (Q-ii), (R-iii), (S-iv)
• d) (P-i), (Q-iii), (R-ii), (S-iv)

Answer: (P-iv), (Q-iii), (R-i), (S-iii)

Question: Covering surrouding embryo contain growth inhibitor hormone for .......... dormancy

• a) Chemical dormncy
• b) Mechanical dormancy
• c) Physical dormancy
• d) External dormancy

Answer: Chemical dormncy

Question: In which type of dormancy, due to hardness of seed coats or integuments, embryo could not expand during germination ?

• a) Mechanical dormancy
• b) Chemical dormancy
• c) External dormancy
• d) Physical dormancy

Answer: Mechanical dormancy

Question: Which type of dormancy is found when seed is impermeable to water or gaseous exchange ?

• a) Mechanical dormancy
• b) Chemical dormancy
• c) External dormancy
• d) Physical dormancy

Answer: Mechanical dormancy

Question: Which type of dormancy, inhibits embryo growth and germination in seed ?

• a) Physiological dormancy
• b) Mixed dormancy
• c) External dormancy
• d) Endogenous dormancy

Answer: Physiological dormancy

Question: Which type of dormancy is found in seed causes physiology and external dormancy ?

• a) Mixed dormancy
• b) External dormancy
• c) Endogenous dormancy
• d) Physiological dormancy

Answer: Mixed dormancy

Question: What is the type of dormancy in which embryo do not differentiate into various tissue at the time of fruit maturation ?

• a) External dormancy
• b) Internal dormancy
• c) Physiological dormancy
• d) Mixed dormancy

Answer: External dormancy

Question: During physiological and physical condition some changes observed in seed, is knows as

• a) Combinational dormancy
• b) Secondary dormancy
• c) Endogenous dormancy
• d) Exogenous dormancy

Answer: Combinational dormancy

Question: Which type of dormancy is induced in seeds due to adverse condition and high temperature ?

• a) Secondary dormancy
• b) Endogenous dormancy
• c) Combinational dormancy
• d) Exogenous dormancy

Answer: Secondary dormancy

Question: 

A : Seed is active condensed plant.

R : It shows specific dormancy and get activated

• a) A and R both correct, R is explanation of A.
• b) A and R both correct but R is not explanation A.
• c) A = correct, R = false
• d) A = false, R = correct

Answer: A and R both correct, R is explanation of A.

Question:

A : Ethylene inhibits logitudinal growth of root stem and leaves.

R : Ethylene is growth inhibitor, maturation hormone.

• a) A and R both correct, R is explanation of A.
• b) A and R both correct but R is not explanation A.
• c) A = correct, R = false
• d) A = false, R = correct

Answer: A and R both correct, R is explanation of A.

Question:

A : Adventitious roots develop by auxin in plants.

R : Auxin, removes the dominant effect of apical bud.

• a) A and R both correct but R is not explanation A.
• b) A and R both correct, R is explanation of A.
• c) A = correct, R = false
• d) A = false, R = correct

Answer: A and R both correct but R is not explanation A.

Question:

A : Cytokinin is cytoplasmic hormone.

R : Cytokinin induced cell division

• a) A = false, R = correct
• b) A = correct, R = false
• c) A and R both correct but R is not explanation A.
• d) A and R both correct, R is explanation of A.

Answer: A = false, R = correct

Question:

A : Nastism is undirectional.

R : Induced factors are essential for nastism.

• a) A and R both correct, R is explanation of A.
• b) A and R both correct but R is not explanation A.
• c) A = correct, R = false
• d) A = false, R = correct

Answer:  A and R both correct, R is explanation of A.

Question:

A : Ethylene inhibits logitudinal growth of root stem and leaves.

R : Ethylene is growth inhibitor, maturation hormone.

• a) A = correct, R = false
• b) A = false, R = correct
• c) A and R both correct but R is not explanation A.
• d) A and R both correct, R is explanation of A.

Answer: A = correct, R = false