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Mobilisation of stored food in germinating seeds is triggered by
General Science Biology Botany Class 11th NEET UG NEET UG Preparation
Q. 18 of Quiz-1441 (Que-ID : 3036)
Mobilisation of stored food in germinating seeds is triggered by
- auxins
- cytokinins
- gibberellins
- ethylene
Ans → (c)gibberellins
Explanation →
This question is taken from this post → Plant Growth and Development (Class-11th Biology) Revision Test | MCQs For NEET - attemp/practice
More MCQs in - Plant Growth and Development (Class-11th Biology) Revision Test | MCQs For NEET
Q. 1 of Quiz-1441 (Que-ID : 3019)
Mechanism of development was explained by
- Hans Dietrisch
- Spemann
- Both a and b
- Haemmerling
Q. 2 of Quiz-1441 (Que-ID : 3020)
Intercalary meristems are of
- Permanent nature
- Temporary nature
- Some are permanent some temporary
- None of these
Q. 3 of Quiz-1441 (Que-ID : 3021)
Cells of fibers and tracheids elongate during
- Phase of cell division
- Phase of cell elongation
- Phase of cell maturation
- Phase of cell differentiation
Q. 4 of Quiz-1441 (Que-ID : 3022)
Typical plant growth shows _________ curve.
- J-shaped
- S-shaped
- I-shaped
- Parabolic
Q. 5 of Quiz-1441 (Que-ID : 3023)
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
Q. 6 of Quiz-1441 (Que-ID : 3024)
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
Q. 7 of Quiz-1441 (Que-ID : 3025)
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
Q. 8 of Quiz-1441 (Que-ID : 3026)
The stage of rapid cell division just after fertilization is
- Organogenesis
- Cleavage
- Gastrulation
- Growth
Q. 9 of Quiz-1441 (Que-ID : 3027)
Which one of the followings is a gaseous plant hormone?
- Ethylene
- Gibberellin
- IAA
- Abscisic acid
Q. 10 of Quiz-1441 (Que-ID : 3028)
To prevent over – ripening, bananas should be
- given a dip in ascorbic acid
- maintained at room temperature
- refrigerated
- stored at the top of refrigerator
Q. 11 of Quiz-1441 (Que-ID : 3029)
Growth in dorsiventral leaf is measured in terms of
- length of leaf
- increase in cell number
- surface area increase
- none of these
Q. 12 of Quiz-1441 (Que-ID : 3030)
Plants grow throughout their life due to
- presence of meristems
- presence of vascular cambium
- presence of xylem and phloem
- presence of tracheids
Q. 13 of Quiz-1441 (Que-ID : 3031)
Mechanism of development was explained by
- Hans Dietrisch
- Spemann
- Both a and b
- Haemmerling
Q. 14 of Quiz-1441 (Que-ID : 3032)
The ability to regain or recover the lost or injured part of body is
- Aging
- Regeneration
- Abnormal development
- Primary inductio
Q. 15 of Quiz-1441 (Que-ID : 3033)
Which growth hormone accerlates the malting process in brewing industry?
- Auxins
- Gibberellins
- Ethylene
- Cytokinins
Q. 16 of Quiz-1441 (Que-ID : 3034)
Which plant growth regulator is the derivative of carotenoids?
- Auxin
- Gibberelic acid
- Cytokinin
- Abscisic acid
Q. 17 of Quiz-1441 (Que-ID : 3035)
Typical plant growth shows _________ curve.
- J-shaped
- S-shaped
- I-shaped
- Parabolic
Q. 18 of Quiz-1441 (Que-ID : 3036)
Mobilisation of stored food in germinating seeds is triggered by
- auxins
- cytokinins
- gibberellins
- ethylene
Q. 19 of Quiz-1441 (Que-ID : 3037)
Cavity formed between somatic and splanchnic mesoderm is called
- Gastrocoele
- Blastocoele
- Coelom
- Neurocoele
Q. 20 of Quiz-1441 (Que-ID : 3038)
IAA is naturally occurring plant hormone called
- Gibberlin
- Auxin
- Cytokinin
- Absicic acid
Q. 21 of Quiz-1441 (Que-ID : 3039)
Auxin is synthesised from in apical meristem from amino acid
- Isoleucine
- Methionine
- Niacin
- Tryptophan
Q. 22 of Quiz-1441 (Que-ID : 3040)
Growth regulator which induces parthenocarpy
- IAA
- ABA
- Cytokinin
- Ethylene
Q. 23 of Quiz-1441 (Que-ID : 3041)
Formation of seedless fruit without act of fertilisation
- Parthenocarpy
- pseudocarpy
- Apomixis
- Parthenogenesis
Q. 24 of Quiz-1441 (Que-ID : 3042)
The major site for production of gibberellin is
- Embryos
- Roots
- Young leaves
- All of these
More MCQs In - General Science Biology Botany Class 11th NEET UG NEET UG Preparation
Q. 20 of Quiz- (Que-ID : 3563)
Which of the following is produced when wood is burnt in a limited supply of oxygen?
- Charcoal
- Water gas
- Paraffin
- Petroleum
Q. 13 of Quiz- (Que-ID : 3431)
The Ti plasmid used in genetic engineering is obtained from:
- Bacillus thruingiensis
- E. Coii
- Agrobacterium hizogenes
- Agrobacterium tumefaciens
Q. 8 of Quiz- (Que-ID : 2851)
The outermost and innermost wall layers of microsporangium in an anther are respectively
- endothecium and tapetum
- epidermis and endodermis
- epidermis and middle layer
- epidermis and tapetum.
Q. 23 of Quiz- (Que-ID : 3391)
Biogas is produced by
- aerobic breakdown of biomass
- anaerobic breakdown of biomass
- with the help of methanogenic bacteria
- both (b) and (c)
Q. 3 of Quiz- (Que-ID : 2946)
The human chromosome with the highest and least number of genes in them are respectively
- chromosome 21 and Y
- chromosome 1 and X
- chromosome 1 and Y
- chromosome X and Y
Q. 4 of Quiz- (Que-ID : 3397)
Plasmids in bacterial cells are
- extra-chromosomal DNA, which cannot replicate
- extra-chromosomal DNA, which can . self-replicate
- extra DNA associated with the genome
- extra DNA, associated with the genome, but cannot replicate.
Q. 18 of Quiz- (Que-ID : 3386)
n the sewage treatment, bacterial floes are allowed to sediment in a settling tank. This sediment is called as
- inactivated sludge
- activated sludge
- primary sludge
- secondary sluge
Q. 17 of Quiz- (Que-ID : 2810)
Which layer is in contact with brain tissues?
- Piamater
- Arachnoid
- Duramater
- Piamater and Arachnoid
Q. 5 of Quiz- (Que-ID : 3048)
TCA cycle was discovered by
- Otto Meyerhof
- Hans Kreb
- Gustav Embden
- All of these
Q. 1 of Quiz- (Que-ID : 2844)
The anther wall consists of four wall layers where
- tapetum lies just inner to endothecium
- middle layers lie between endothecium and tapetum
- endothecium lies inner to middle layers
- tapetum lies next to epidermis
Q. 5 of Quiz- (Que-ID : 3148)
Which of the following statements regarding enzyme inhibition is correct?
- Competitive inhibition is seen when a substrate competes with an enzyme for binding to an inhibitor protein
- Non-competitive inhibitors often bind to the enzyme irreversibly
- Competitive inhibition is seen when the substrate and the inhibitor compete for the active site on the enzyme
- Non-competitive inhibition of an enzyme can be overcome by adding large amount of substrate
Q. 21 of Quiz- (Que-ID : 3947)
Metabolic intermediates found in living system which are essential for growth and life is called___________
- Saponins
- Tannins
- Secondary metabolite
- Primary metabolites
Q. 1 of Quiz- (Que-ID : 1710)
The red colour of the red sea is because of-
- Red Algae
- Brown algae
- Cephaleuros
- Trichodesmium erithraeum
Q. 14 of Quiz- (Que-ID : 3132)
Choose the correct sequence of water movement in the plants.
- Cortex, protoxylem, endodermis, root hair, pericycle, metaxylem
- Root hair, cortex, endodermis, pericycle, protoxylem, metaxylem
- Root hair, protoxylem, metaxylem, pericycle, cortex, endodermis
- Root hair, pericycle, endodermis, cortex, protoxylem, metaxylem
Q. 5 of Quiz- (Que-ID : 3198)
A.T.S. of a young dicot root can be distinguished from that of a young dicot stem by the presence of
- radial arrangement of xylem and phloem
- collateral arrangement of xylem and phloem
- interfascicular cambium
- intrafascicular cambium
Q. 14 of Quiz- (Que-ID : 3182)
Spot the salivary gland in the following :
- sublingual
- adrenal
- Brunners
- lacrimal
Q. 7 of Quiz- (Que-ID : 3250)
Which of the following statement is correct?
- Platypus lays eggs
- Camels have biconcave RBCs
- Whales respire by gills
- Bats do not fly
Q. 15 of Quiz- (Que-ID : 2933)
Mendal formulated the law of purity of gametes on the basis of
- monohybrid cross
- dihybrid cross
- test cross
- back cross
Q. 17 of Quiz- (Que-ID : 3510)
Which of the following is not done in a wild life sanctuary?
- Fauna is conserved
- Flora is conserved
- Soil and flora is utilised
- Hunting is prohibited
Q. 22 of Quiz- (Que-ID : 3065)
Most of the energy of the carbohydrates is released by oxidation when
- Pyruvic acid is converted into CO2 and H2O
- Pyruvic acid is converted into acetyl Co-A
- Sugar is converted into pyruvic acid
- Glucose is converted into alcohol and CO2
Q. 24 of Quiz- (Que-ID : 3142)
Munch hypothesis is based on
- Translocation of food due to turgor pressure gradient and imbibition force
- Translocation of food due to turgor pressure gradient
- Translocation of food due to imbibition force
- None of the above
Q. 10 of Quiz- (Que-ID : 2978)
Each kidney has how many nephrons
- 1 million
- 2 million
- 2 thousand
- 2 hundred
Q. 11 of Quiz- (Que-ID : 2954)
If the base sequence of a codon in mRNA is 5’ – AUG – 3′ the sequence of tRNA pairing with it must be
- 5’ – UAC – 3’
- 5’ – CAU – 3’
- 5’-AUG – 3’
- 5’ – GUA – 3’
Q. 5 of Quiz- (Que-ID : 2848)
Science of cultivation, breeding, marketing and arrangement of flowers is called
- arboriculture
- floriculture
- horticulture
- anthology
Q. 16 of Quiz- (Que-ID : 3084)
Kranz anatomy is a feature of
- C3 plants
- CAM plants
- C4 plants
- All of these
Q. 20 of Quiz- (Que-ID : 3288)
Pinus differs from mango in having
- Tree habit
- Green leaves
- Ovules not enclosed in ovary
- Wood
Q. 8 of Quiz- (Que-ID : 3226)
Potato tuber is an underground stem because
- Tinospora
- Jussiaea
- Viscum
- Vanda
Q. 16 of Quiz- (Que-ID : 3059)
Incomplete oxidation of glucose into pyruvic acid with several intermediate steps is know as
- TCA pathway
- Glycolysis
- Hms pathway
- Glycolysis
Q. 15 of Quiz- (Que-ID : 3408)
Triticale, first man made cereal crop, has been obtained by crossing wheat with:
- Rye
- Pearl millet
- Sugarcane
- Barley
Q. 5 of Quiz- (Que-ID : 2618)
Which kind of gland is pancreas
- Exocrine
- Endocrine
- Compound gland
- None of the above
Q. 15 of Quiz- (Que-ID : 2984)
Which loop of hence is permeable to water
- Descending loop
- Ascending loop
- Both the loops
- None of the above
Q. 8 of Quiz- (Que-ID : 2976)
Green glands/ antennal glands are excretory structures of which organism
- Earthworm
- Prawn
- Cockroach
- Planaria
Q. 22 of Quiz- (Que-ID : 3015)
Division of nucleus without being followed by cytokinesis results into
- Phargmoplast
- Polyploidy
- Uninucleate condition
- Multinucleate condition
Q. 2 of Quiz- (Que-ID : 3220)
Artabotrys is a hook climber in which the hooks are modified
- inflorescence axis
- petiole
- roots
- stipules
Q. 8 of Quiz- (Que-ID : 2951)
In some viruses, DNA is synthesised by using RNA as template. Such a DNA is called
- A – DNA
- B – DNA
- cDNA
- rDNA
Q. 5 of Quiz- (Que-ID : 2748)
Chemical name of T4 is
- Tetradiodothyronine
- Tridiodothyronine
- Tetraiodothyronine
- Triiodothyronine
Q. 23 of Quiz- (Que-ID : 3416)
Two microbes found to be very useful in genetic, engineering are
- Escherichiya Coli and Agrobacterium tumefaciens
- Virbio chloerae and tailed bacteriophage
- Diplococcus sp and pseudomonas sp
- None of these
Q. 22 of Quiz- (Que-ID : 3290)
An evolutionary characteristic is found in selaginella:
- Presence of ligule
- Heterophilly habits
- Sporangia present in cone
- Heterospory
Q. 10 of Quiz- (Que-ID : 3178)
The main function of the skin of frog is
- the exchange of respiratory gases
- the storage of fat
- the storage of energy
- to convert light vitamin D
Q. 3 of Quiz- (Que-ID : 3196)
Which of the following is not a feature of spring wood?
- Color of the wood is light.
- Density is less.
- Cambium is active.
- Lesser number of xylary elements.
Q. 25 of Quiz- (Que-ID : 3393)
A microbial biocontrol agent that can be used to control butterfly caterpillars is
- Trichoderma polysporum
- Bacillus thuringiensis
- Streptococcus
- mycorrhiza
Q. 11 of Quiz- (Que-ID : 3379)
Enzyme which has the fibrinolytic effect is
- protease
- amylase
- lipase
- streptokinase
Q. 19 of Quiz- (Que-ID : 3387)
Which of the following steps is taken by the Ministry of Environment and Forests to protect rivers from water pollition ?
- Ganga Action Plan
- Narmada Action Plan
- Yamuna Action Plan
- Both (a) and (c)
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