Intercalary meristems are of

b) Temporary nature | Intercalary meristems are of temporary nature

Cells of fibers and tracheids elongate during

a) Phase of cell division | Phase of cell division

Typical plant growth shows _________ curve.

b) S-shaped | Typical plant growth represents sigmoid curve

Exponential growth of the plants is express as W1 = W0 ert r represents

d) all of the above | r is the relative growth rate and also measures the ability of the plant to produce new plant material (efficiency index).

Opening of floral buds into flowers, is a type of:

c) Autonomic movement of growth |

Which one is incorrect?

c) Hypoblast is presumptive mesoderm | Upper layer of cells in blastoderm is epiblast

Growth in dorsiventral leaf is measured in terms of

c) surface area increase | Increase in surface area denotes the growth in a dorsiventral leaf

Plants grow throughout their life due to

a) presence of meristems | Plants growth throughout their life due to the presence of meristems at certain locations in their body.

Which growth hormone accerlates the malting process in brewing industry?

b) Gibberellins | Gibberellins especially GA3 is used to speed up the malting process in brewing industry

Typical plant growth shows _________ curve.

b) S-shaped | Typical plant growth represents sigmoid curve.

Formation of seedless fruit without act of fertilisation

a) Parthenocarpy | Parthenocarpy

Which plant growth regulator is the derivative of carotenoids?

Q: Which plant growth regulator is the derivative of carotenoids?

d) Abscisic acid | Abscisic acid are the derivatives of carotenoids.

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Q.16. Which plant growth regulator is the derivative of carotenoids?

Auxin
Gibberelic acid
Cytokinin
Abscisic acid

Answer: (d) Abscisic acid
Explanation: Abscisic acid are the derivatives of carotenoids.

Plant Growth And Development (Class-11th Biology) Revision Test | MCQs For NEET

25 Questions 4 Attempts 3.87K Seen

This practice/Revision test includes 25 important multiple-choice questions (MCQ) from the chapter- Plant Growth And Development (Biology class 11th) for the viva, neet, and other competitive entrance exams. Start Test without Login in
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Q.No.	Que title	Option 1 (a)	Option 2 (b)	Option 3 (c)	Option 4 (d)
1	Mechanism of development was explained by	Hans Dietrisch	Spemann	Both a and b	Haemmerling
2	Intercalary meristems are of	Permanent nature	Temporary nature	Some are permanent some temporary	None of these
3	Cells of fibers and tracheids elongate during	Phase of cell division	Phase of cell elongation	Phase of cell maturation	Phase of cell differentiation
4	Typical plant growth shows _________ curve.	J-shaped	S-shaped	I-shaped	Parabolic
5	Exponential growth of the plants is express as W1 = W0 ert r represents	ability of the plant to produce new cells	efficiency index	relative growth rate	all of the above
6	Opening of floral buds into flowers, is a type of:	Autonomic movement of variation	Autonomic movement of locomotion	Autonomic movement of growth	Paratonic movement of growth
7	Which one is incorrect?	Epiblast is presumptive ectoderm and mesoderm	Hypoblast is presumptive endoderm	Hypoblast is presumptive mesoderm	Upper layer of cells in blastoderm is epiblast
8	The stage of rapid cell division just after fertilization is	Organogenesis	Cleavage	Gastrulation	Growth
9	Which one of the followings is a gaseous plant hormone?	Ethylene	Gibberellin	IAA	Abscisic acid
10	To prevent over – ripening, bananas should be	given a dip in ascorbic acid	maintained at room temperature	refrigerated	stored at the top of refrigerator
11	Growth in dorsiventral leaf is measured in terms of	length of leaf	increase in cell number	surface area increase	none of these
12	Plants grow throughout their life due to	presence of meristems	presence of vascular cambium	presence of xylem and phloem	presence of tracheids
13	Mechanism of development was explained by	Hans Dietrisch	Spemann	Both a and b	Haemmerling
14	The ability to regain or recover the lost or injured part of body is	Aging	Regeneration	Abnormal development	Primary inductio
15	Which growth hormone accerlates the malting process in brewing industry?	Auxins	Gibberellins	Ethylene	Cytokinins
16	Which plant growth regulator is the derivative of carotenoids?	Auxin	Gibberelic acid	Cytokinin	Abscisic acid
17	Typical plant growth shows _________ curve.	J-shaped	S-shaped	I-shaped	Parabolic
18	Mobilisation of stored food in germinating seeds is triggered by	auxins	cytokinins	gibberellins	ethylene
19	Cavity formed between somatic and splanchnic mesoderm is called	Gastrocoele	Blastocoele	Coelom	Neurocoele
20	IAA is naturally occurring plant hormone called	Gibberlin	Auxin	Cytokinin	Absicic acid
21	Auxin is synthesised from in apical meristem from amino acid	Isoleucine	Methionine	Niacin	Tryptophan
22	Growth regulator which induces parthenocarpy	IAA	ABA	Cytokinin	Ethylene
23	Formation of seedless fruit without act of fertilisation	Parthenocarpy	pseudocarpy	Apomixis	Parthenogenesis
24	The major site for production of gibberellin is	Embryos	Roots	Young leaves	All of these
25	Gibberellin is isolated from	Brian et al	Went	Yabuta	Kurosawa

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