MCQ 21
What is the function of the xylem in flowering plants?
A) Transport food
B) Store nutrients
C) Transport water
D) Perform photosynthesis
Answer: C) Transport water
Explanation: Xylem is responsible for transporting water and minerals from the roots to the rest of the plant.
MCQ 22
Which type of fruit is formed from a single flower with multiple carpels?
A) Simple fruit
B) Aggregate fruit
C) Multiple fruit
D) Accessory fruit
Answer: B) Aggregate fruit
Explanation: Aggregate fruits develop from a single flower that has multiple ovaries, like raspberries.
MCQ 23
Which part of the plant is primarily involved in the storage of food?
A) Roots
B) Stems
C) Leaves
D) Flowers
Answer: A) Roots
Explanation: Roots often store food in the form of starch and other nutrients, especially in plants like carrots and beets.
MCQ 24
What is the primary function of stomata in leaves?
A) Photosynthesis
B) Gas exchange
C) Nutrient absorption
D) Water storage
Answer: B) Gas exchange
Explanation: Stomata are small openings on leaves that facilitate gas exchange, allowing carbon dioxide in and oxygen out.
MCQ 25
Which type of tissue is involved in the growth of plants?
A) Parenchyma
B) Sclerenchyma
C) Meristematic
D) Collenchyma
Answer: C) Meristematic
Explanation: Meristematic tissue consists of undifferentiated cells that can divide and differentiate into various types of tissues, enabling growth.
MCQ 26
Which type of flower has both male and female reproductive organs?
A) Unisexual flower
B) Bisexual flower
C) Complete flower
D) Incomplete flower
Answer: B) Bisexual flower
Explanation: A bisexual flower contains both stamens (male) and carpels (female), allowing for self-fertilization or cross-fertilization.
MCQ 27
Which of the following is not a part of a typical flower?
A) Stamen
B) Carpel
C) Node
D) Petal
Answer: C) Node
Explanation: A node is a part of the stem where leaves or branches arise, not a component of a flower.
MCQ 28
What is the primary function of the phloem?
A) Transport water
B) Provide structural support
C) Transport nutrients and sugars
D) Store food
Answer: C) Transport nutrients and sugars
Explanation: Phloem transports nutrients, particularly sugars produced during photosynthesis, from the leaves to other parts of the plant.
MCQ 29
Which plant part develops into the fruit after fertilization?
A) Ovule
B) Stigma
C) Ovary
D) Anther
Answer: C) Ovary
Explanation: After fertilization, the ovary develops into the fruit, which encases the seeds.
MCQ 30
Which of the following types of roots grows from the stem?
A) Taproot
B) Fibrous root
C) Adventitious root
D) Lateral root
Answer: C) Adventitious root
Explanation: Adventitious roots grow from the stem or leaves, rather than from the root system.
Leave a comment