Botany Quiz | Botany Multiple Choice Questions and Answers

1 A nucleoside is:
A purine/pyramidine + sugar
B purine/pyramidine + phosphate
C Pyramidine + purine + phosphate
D Purine + sugar + phosphate

Answer: purine/pyramidine + sugar
2 In angiosperms regarding development of microgametophyte each microspore mother cell undergoes
A Two successive meiotic division to form 4 microspores
B Meiosis to produce 4 haploid microspores
C Two successive mitosis to form 4 microspores
D Mitosis to produce 4 microspores

Answer: Meiosis to produce 4 haploid microspores
3 Pmcess of water exudation through hydathodes is known as:
A Transpiration
B Bleeding
C Guttation
D None of the above

Answer: Guttation
4 Insectivorous plants grow in:
A Nitrogen deficient soil
B Nitrogen rich soil
C Potassium deficient soil
D Carbohydrate rich soil

Answer: Nitrogen deficient soil
5 The organelles involved in photorespiration are
A Mitochondria, peroxisome and glyoxysomes
B Chloroplast, mitochondria and peroxisome
C Glyoxysomes, chloroplast and mithondria
D Chloroplast, peroxisome and glythisome

Answer: Chloroplast, mitochondria and peroxisome
6 ? X l74 has:
A Single stranded DNA
B Single stranded RNA
C Double stranded RNA
D Double stranded DNA

Answer: Single stranded DNA
7 Floridean starch is found in:
A Phaeophyceae
B Rhodophyceae
C Chlorophyceae
D Myxophyceae

Answer: Rhodophyceae
8 In bryoph4tes the female sex organ is called:
A Archegonium
B Ascogonium
C Antheridium
D Carpogonium

Answer: Archegonium
9 The two great industrial tragedies MIC and Chemobyl occurred respectively in:
A Ukraine 1990, Bhopal 1986
B Madhya Pradesh 1980, Russia 1990
C Bhopal 1980, Ukraine 1984
D Bhopal 1984, Ukraine 1986

Answer: Bhopal 1984, Ukraine 1986
10 If a sporangium derived from a single cell is called
A Heterosporangiate
B Leptosporangiate
C Eusporangiate
D None of the above

Answer: Leptosporangiate
11 Mary’s biological concept of species is mainly based on:
A Reproductive isolation
B Morphological traits
C Modes of reproduction
D None of the above

Answer: Reproductive isolation
12 The process by which the amount of DNA, RNA and protein can be known at a time is:
A Phase-contrast microscopy
B Tissue culture
C Autoradiography
D Cell fractionation

Answer: Autoradiography
13 Sexual reproduction in Rhizopus occurs through:
A Gametangial copulation
B Spermatogamy
C Gametangial contact
D Planogametic copulation

Answer: Gametangial copulation
14 Organelles involved in photorespiration are
A Mitochondria, proxisomes and glyoxisomes
B Mitochondria, nucleus and ribosomes
C Mitochondria, Peroxisomes and chloroplasts
D Mitochondria, chloroplasts and ribosomes

Answer: Mitochondria, Peroxisomes and chloroplasts
15 Swollen placenta, oblique septum and conniving anthers are characteristics of family:
A Solatiaceae
B Brassicaceae
C Asterácéae
D Poaceae

Answer: Solatiaceae
16 The empirical formula for chlorophyll-a is:
A C55 H72 O5N4 Mg
B C35 H72 O5N4 Mg
C C65 H70 O6N4 Mg
D C45 H70 O6N4 Mg

Answer: C55 H72 O5N4 Mg
17 A fern differ from a moss in prossessing:
A Independent Sporophyte
B Swimming/flagellated anitherozoids
C Flask-shaped archegonia
D Independent gametophyte

Answer: Independent Sporophyte
18 Water potential in leaf tissue is “positive” (near zero) during:
A Low transpiration
B Gestation
C Excessive transpiration
D Excessive absorption

Answer: Gestation
19 Which of the following pairs are correctly matched?
A Fertile spike —Ophioglossum
B Apophysis—Spirogyra
C Sporangiophore—Equisetum
D Synangium—Psilotum

Answer: Fertile spike —Ophioglossum
20 Which of the following are true archaebacteria?
A Extreme halophiles
B Presence of peptidoglycan cell wall
C Extreme thermophyles
D Methanogens

Answer: Extreme halophiles

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