MCQ 81:
Which of the following is a method of seed dispersal?
A) Pollination
B) Germination
C) Wind
D) Photosynthesis
Answer: C) Wind
Explanation: Wind is one of the primary methods of seed dispersal, allowing seeds to travel away from the parent plant.
MCQ 82:
What type of plant has broad, flat leaves?
A) Cacti
B) Grasses
C) Broadleaf trees
D) Succulents
Answer: C) Broadleaf trees
Explanation: Broadleaf trees, such as maples and oaks, have broad, flat leaves that are typically adapted for photosynthesis.
MCQ 83:
Which group of plants is characterized by having two seed leaves?
A) Monocots
B) Dicots
C) Gymnosperms
D) Ferns
Answer: B) Dicots
Explanation: Dicots are characterized by having two cotyledons (seed leaves) in their seeds, while monocots have one.
MCQ 84:
Which of the following processes involves the conversion of light energy into chemical energy?
A) Respiration
B) Photosynthesis
C) Transpiration
D) Fermentation
Answer: B) Photosynthesis
Explanation: Photosynthesis is the process by which plants convert light energy into chemical energy stored in glucose.
MCQ 85:
What is the main purpose of the root cap?
A) Protect the root tip
B) Absorb water
C) Conduct nutrients
D) Store food
Answer: A) Protect the root tip
Explanation: The root cap protects the delicate growing tip of the root as it pushes through the soil.
MCQ 86:
Which of the following is a benefit of plant secondary metabolites?
A) Photosynthesis
B) Growth
C) Defense against herbivores
D) Nutrient absorption
Answer: C) Defense against herbivores
Explanation: Secondary metabolites, such as alkaloids and tannins, often serve as a defense mechanism against herbivores and pathogens.
MCQ 87:
Which part of the plant absorbs most of the water and nutrients?
A) Leaves
B) Roots
C) Stems
D) Flowers
Answer: B) Roots
Explanation: Roots are the primary site for water and nutrient absorption in plants.
MCQ 88:
Which structure is responsible for the production of pollen?
A) Stigma
B) Anther
C) Ovary
D) Style
Answer: B) Anther
Explanation: The anther is the part of the stamen that produces and contains pollen.
MCQ 89:
Which of the following is a primary function of leaves?
A) Photosynthesis
B) Nutrient storage
C) Water absorption
D) Support
Answer: A) Photosynthesis
Explanation: The primary function of leaves is to carry out photosynthesis, converting light energy into chemical energy.
MCQ 90:
Which of the following is a common method of asexual reproduction in plants?
A) Pollination
B) Budding
C) Fertilization
D) Germination
Answer: B) Budding
Explanation: Budding is a form of asexual reproduction where a new individual develops from a bud on the parent plant.
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