50 Gk MCQs about Botany

Here are, 50 Gk MCQs a question and answers about Botany.

Q.1 Who is known as the Father of Botany?
A) Aristotle
B) Theophrastus
C) Linnaeus
D) Mendel
Answer: B) Theophrastus

Q.2 Which pigment is responsible for the green color of plants?
A) Carotenoids
B) Chlorophyll
C) Xanthophyll
D) Anthocyanin
Answer: B) Chlorophyll

Q.3 The process by which plants make their food is called?
A) Respiration
B) Digestion
C) Photosynthesis
D) Transpiration
Answer: C) Photosynthesis

Q.4 Which gas is absorbed by plants during photosynthesis?
A) Oxygen
B) Nitrogen
C) Carbon dioxide
D) Hydrogen
Answer: C) Carbon dioxide

Q.5 The process of water loss from plants through stomata is known as?
A) Respiration
B) Guttation
C) Transpiration
D) Photosynthesis
Answer: C) Transpiration

Q.6 Which plant tissue is responsible for transporting water from roots to other parts of the plant?
A) Phloem
B) Xylem
C) Epidermis
D) Cortex
Answer: B) Xylem

Q.7 Which of the following is an example of a gymnosperm?
A) Mango
B) Pine
C) Rose
D) Lotus
Answer: B) Pine

Q.8 Which plant hormone is responsible for cell elongation?
A) Ethylene
B) Gibberellin
C) Cytokinin
D) Auxin
Answer: D) Auxin

Q.9 The study of fungi is known as?
A) Phycology
B) Mycology
C) Bryology
D) Bacteriology
Answer: B) Mycology

Q.10 Which part of the flower develops into fruit?
A) Stamen
B) Ovule
C) Ovary
D) Petal
Answer: C) Ovary

Also Read |

30+ Gk MCQs about Micro Organism

Q.11 What is the primary function of phloem tissue in plants?
A) Transport water
B) Transport minerals
C) Transport food
D) Transport oxygen
Answer: C) Transport food

Q.12 Which plant hormone is known as the “stress hormone”?
A) Auxin
B) Abscisic acid
C) Cytokinin
D) Gibberellin
Answer: B) Abscisic acid

Q.13 Which of the following is a non-vascular plant?
A) Fern
B) Pine
C) Moss
D) Rose
Answer: C) Moss

Q.14 What are the pores in leaves called that facilitate gas exchange?
A) Guard cells
B) Stomata
C) Trichomes
D) Lenticles
Answer: B) Stomata

Q.15 Which plant part is primarily involved in reproduction?
A) Leaf
B) Stem
C) Root
D) Flower
Answer: D) Flower

Q.16 Nitrogen fixation in leguminous plants occurs in which part of the plant?
A) Leaves
B) Flowers
C) Roots
D) Stems
Answer: C) Roots

Q.17 Which pigment is primarily involved in capturing light for photosynthesis?
A) Chlorophyll
B) Haemoglobin
C) Myoglobin
D) Carotene
Answer: A) Chlorophyll

Q.18 The movement of plants toward light is known as?
A) Phototropism
B) Geotropism
C) Hydrotropism
D) Thigmotropism
Answer: A) Phototropism

Q.19 Which gas is released during photosynthesis?
A) Carbon dioxide
B) Oxygen
C) Nitrogen
D) Sulfur dioxide
Answer: B) Oxygen

Q.20 In which group of plants are seeds enclosed within fruits?
A) Algae
B) Bryophytes
C) Gymnosperms
D) Angiosperms
Answer: D) Angiosperms

Also Read |

50 Gk MCQs about Human Diseases

Q.21 Bryophytes are also known as?
A) Flowering plants
B) Non-flowering plants
C) Seed-bearing plants
D) Amphibians of the plant kingdom
Answer: D) Amphibians of the plant kingdom

Q.22 Which of the following is an example of a biennial plant?
A) Wheat
B) Mango
C) Carrot
D) Rose
Answer: C) Carrot

Q.23 Which is the main photosynthetic organ of a plant?
A) Stem
B) Root
C) Leaf
D) Flower
Answer: C) Leaf

Q.24 What type of venation is found in dicot plants?
A) Parallel venation
B) Reticulate venation
C) Spiral venation
D) Linear venation
Answer: B) Reticulate venation

Q.25 Which plant hormone is responsible for ripening of fruits?
A) Auxin
B) Gibberellin
C) Ethylene
D) Abscisic acid
Answer: C) Ethylene

Q.26 Plants that grow in water are called?
A) Xerophytes
B) Mesophytes
C) Hydrophytes
D) Epiphytes
Answer: C) Hydrophytes

Q.27 Which type of stem modification is seen in potato?
A) Tuber
B) Rhizome
C) Bulb
D) Corm
Answer: A) Tuber

Q.28 Which of the following is an insectivorous plant?
A) Cactus
B) Pine
C) Venus Flytrap
D) Mango
Answer: C) Venus Flytrap

Q.29 The waxy layer on leaves that helps prevent water loss is called the?
A) Stomata
B) Cuticle
C) Xylem
D) Phloem
Answer: B) Cuticle

Q.30 Which of the following is a xerophyte?
A) Mango
B) Cactus
C) Water lily
D) Rose
Answer: B) Cactus

Q.31 Which pigment gives red, purple, and blue colors to flowers and fruits?
A) Chlorophyll
B) Carotenoids
C) Anthocyanins
D) Xanthophyll
Answer: C) Anthocyanins

Q.32 What is the term for the horizontal underground stem?
A) Tuber
B) Bulb
C) Rhizome
D) Corm
Answer: C) Rhizome

Q.33 Which structure in plants is involved in sexual reproduction?
A) Leaf
B) Stem
C) Flower
D) Root
Answer: C) Flower

Q.34 Which plant produces seeds but no flowers?
A) Pine
B) Mango
C) Hibiscus
D) Lotus
Answer: A) Pine

Q.35 What do you call the seed leaves of a plant embryo?
A) Cotyledons
B) Radicle
C) Plumule
D) Hypocotyl
Answer: A) Cotyledons

Q.36 Which of the following is a parasitic plant?
A) Cuscuta
B) Rose
C) Wheat
D) Rice
Answer: A) Cuscuta

Q.37 What is the primary function of a flower’s petals?
A) Photosynthesis
B) Protection of the ovary
C) Attraction of pollinators
D) Water transport
Answer: C) Attraction of pollinators

Q.38 Which plant hormone promotes seed dormancy?
A) Ethylene
B) Auxin
C) Abscisic acid
D) Gibberellin
Answer: C) Abscisic acid

Q.39 In which part of the leaf does photosynthesis primarily occur?
A) Epidermis
B) Spongy mesophyll
C) Palisade mesophyll
D) Stomata
Answer: C) Palisade mesophyll

Q.40 The main water-conducting tissue in vascular plants is?
A) Phloem
B) Xylem
C) Cortex
D) Cambium
Answer: B) Xylem

Q.41 Which of the following is an example of a taproot system?
A) Grass
B) Maize
C) Carrot
D) Bamboo
Answer: C) Carrot

Q.42 What part of the plant stores starch?
A) Leaf
B) Root
C) Flower
D) Stem
Answer: B) Root

Q.43 Which is the tallest grass in the world?
A) Bamboo
B) Lawngrass
C) Fescues
D) Bentgrass
Answer: A) Bamboo

Q.44 The waxy substance that covers the epidermis of leaves is known as?
A) Lignin
B) Pectin
C) Cutin
D) Cellulose
Answer: C) Cutin

Q.45 Which of the following is a characteristic of gymnosperms?
A) Flowers
B) Fruits
C) Naked seeds
D) Enclosed seeds
Answer: C) Naked seeds

Q.46 Which of the following plants has compound leaves?
A) Mango
B) Neem
C) Banana
D) Rose
Answer: B) Neem

Q.47 The phenomenon of light-induced growth in plants is known as?
A) Phototropism
B) Gravitropism
C) Chemotropism
D) Hydrotropism
Answer: A) Phototropism

Q.48 Which of the following is NOT a function of roots?
A) Absorbing water
B) Photosynthesis
C) Anchoring the plant
D) Storing food
Answer: B) Photosynthesis

Q.49 Which is the largest leaf in the world?
A) Reticulate venation
B) Raphia Regalis
C) Parapinnate
D) Tripinnate
Answer: B) Raphia Regalis

Q.50 Which is the largest seed in the world?
A) Coconut
B) African Palmyra
C) East Indies Palmyra
D) Coco de mer
Answer: D) Coco de mer

These 50 Gk MCQs questions and answers cover various aspects of botany, including plant physiology, anatomy, taxonomy, and ecology.

Connect with us on social media:

Instagram: https://www.instagram.com/test_your_gk?igsh=MWN6b3Bwd2lhaDN1OA==

Facebook: https://www.facebook.com/profile.php?id=61561756379011&mibextid=ZbWKwL

Pinterest: https://pin.it/4ad8gsy44

Telegram: https://t.me/testyourgkofficial