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Botany Quiz | Botany Objective Type Questions and Answers

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Free download in PDF Botany Objective Type Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
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(21) Which of the following are endangered plants ?
[A] Senecio hadrasomum
[B] Punica granatum
[C] Saintpaulia ionantha
[D] Ceratozamia hildae
Answer: Punica granatum
(22) Consider the following statement:

The ex situ conservation of genetic resources can be done through:

[A] The establishment of germplasm banks
[B] The establishment of national parks
[C] Tissue culture practices
[D] Maintenance of sanctuaries
Answer: The establishment of national parks
(23) Consider the following statements associated with the germination of an angiospermous seed:
[A] The respiration rate of the germinating seed increases along with the increased enzymatic activity
[B] As the seed gets hydrated and germinates, enzymatic activity is increased
[C] The increase in the respiratory rate continues till senescence
[D] Rate of enzymatic activity decreases
Answer: The respiration rate of the germinating seed increases along with the increased enzymatic activity
(24) Consider the following statements:
[A] Maltose is polymer of fructose
[B] Sucrose is monosaccharide
[C] Starch is a fatty acid polymer
[D] Cutin is a fatty acid polymer
Answer: Starch is a fatty acid polymer
(25) The emprical formula for chlorophyII-b is:
[A] C54 H70 O6 N4 Mg
[B] C55 H70 O6 N4 Mg
[C] C55 H22 O5 N4 Mg
[D] C45 H72 O5 N4 Mg
Answer: C55 H70 O6 N4 Mg
(26) Consider the following regions of India:
[A] Eastern Ghats
[B] Western Himalaya
[C] Eastern Himalaya
[D] Western Ghats
Answer: Western Himalaya
(27) Cyanide resistant respiration is characteristic of:
[A] Plants
[B] Animals
[C] Bacteria
[D] Viruses
Answer: Plants
(28) Development of Sporophyte from gametophyte tissue without fusion of gametes is:
[A] Apogamy
[B] Parthenogenesis
[C] Apospory
[D] Apomixis
Answer: Apogamy
(29) Colchicines bring about:
[A] Polyploidy
[B] Cell division
[C] Cell elongation
[D] Cell differentiation
Answer: Polyploidy
(30) Movement of leaves of sensitive plant, Mimosa pudica are due to:
[A] Seisnonasty
[B] Thernonasty
[C] Hydrothpism
[D] Chemo nasty
Answer: Seisnonasty
31 Cheese and yoghurt are products of:
[A] Fermentation
[B] Pasteurization
[C] Dehydration
[D] Distillation
Answer: Fermentation
32 Primary root is:
[A] Positive hydrotropic
[B] Positively geotropic
[C] Negative geotropic
[D] Negative hydrotropic
Answer: Positive hydrotropic
33 Photorespiration is related to:
[A] Glyoxysomes
[B] Peroxisome
[C] Chloroplast
[D] Mitochondria
Answer: Peroxisome
34 B-DNA is:
[A] Antiparallel and right handed
[B] Antiparallel and left handed
[C] Parallel and right handed
[D] Parallel and left handed
Answer: Antiparallel and right handed
35 Haploid cells belong to:
[A] Megaspore, pollen grain, antipodal
[B] Integument, pollen grain, endosperm
[C] Embryo, endosperm and pollen grain
[D] Integument, pollen grain and antipodal
Answer: Megaspore, pollen grain, antipodal
36 Development of saprophyte from gametophyte, is called
[A] Apogamy
[B] Apomixis
[C] Dip1ospory
[D] Apospory
Answer: Apogamy
37 Haploid plants can be obtained from:
[A] Root culture
[B] Anther culture
[C] Leaf culture
[D] Bud culture
Answer: Anther culture
38 The first reaction in photorespiration is:
[A] Oxygenation
[B] Decarboxylation
[C] Carboxylation
[D] Phosphorylation
Answer: Oxygenation
39 Caruncle develops-from:
[A] Outer integument
[B] Ctyledon
[C] Funiculus
[D] Inner integuments
Answer: Outer integument
40 In a national park protection is provided to:
[A] Flora and fauna
[B] Entire ecosystem
[C] Fauna only
[D] Flora only
Answer: Flora and fauna

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