Plant Physiology

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Q. What is the function of phloem in plants?
  • A. Transport of water
  • B. Transport of food
  • C. Photosynthesis
  • D. Storage of nutrients
Q. What is the main product of photosynthesis?
  • A. Oxygen
  • B. Glucose
  • C. Carbon dioxide
  • D. Water
Q. What is the main product of the Calvin cycle in photosynthesis?
  • A. Oxygen
  • B. Glucose
  • C. Carbon dioxide
  • D. ATP
Q. What is the main purpose of the xylem in plants? (2020)
  • A. Transport of food
  • B. Transport of water
  • C. Photosynthesis
  • D. Storage of nutrients
Q. What is the primary function of root hairs in plants?
  • A. Photosynthesis
  • B. Water absorption
  • C. Nutrient storage
  • D. Gas exchange
Q. What is the primary role of chloroplasts in plant cells?
  • A. Energy production
  • B. Photosynthesis
  • C. Cell division
  • D. Respiration
Q. What is the primary role of xylem in plants? (2022)
  • A. Transport of nutrients
  • B. Transport of water
  • C. Photosynthesis
  • D. Storage of food
Q. What is the process by which plants lose water vapor called? (2019)
  • A. Transpiration
  • B. Evaporation
  • C. Condensation
  • D. Photosynthesis
Q. What is the process by which plants lose water vapor through small openings in their leaves called? (2019)
  • A. Transpiration
  • B. Evaporation
  • C. Condensation
  • D. Photosynthesis
Q. What is the process by which plants lose water vapor to the atmosphere?
  • A. Transpiration
  • B. Evaporation
  • C. Condensation
  • D. Precipitation
Q. What is the role of auxins in plant growth?
  • A. Promote flowering
  • B. Stimulate root growth
  • C. Inhibit growth
  • D. Promote cell elongation
Q. What is the role of xylem in plants?
  • A. Transport of nutrients
  • B. Transport of water
  • C. Photosynthesis
  • D. Storage of food
Q. What is the term for the movement of water through a plant?
  • A. Translocation
  • B. Transpiration
  • C. Absorption
  • D. Diffusion
Q. Which gas is primarily absorbed by plants during photosynthesis?
  • A. Oxygen
  • B. Carbon dioxide
  • C. Nitrogen
  • D. Hydrogen
Q. Which gas is primarily taken in by plants during photosynthesis?
  • A. Oxygen
  • B. Carbon Dioxide
  • C. Nitrogen
  • D. Hydrogen
Q. Which hormone is primarily responsible for plant growth? (2023)
  • A. Ethylene
  • B. Auxin
  • C. Gibberellin
  • D. Abscisic acid
Q. Which hormone is responsible for the ripening of fruits?
  • A. Gibberellins
  • B. Ethylene
  • C. Cytokinins
  • D. Auxins
Q. Which nutrient is essential for the synthesis of chlorophyll?
  • A. Nitrogen
  • B. Phosphorus
  • C. Potassium
  • D. Calcium
Q. Which of the following is a factor affecting the rate of photosynthesis?
  • A. Temperature
  • B. Soil type
  • C. Wind speed
  • D. Humidity
Q. Which of the following is a product of photosynthesis? (2021)
  • A. Carbon Dioxide
  • B. Glucose
  • C. Oxygen
  • D. Both Glucose and Oxygen
Q. Which of the following is NOT a macronutrient for plants?
  • A. Nitrogen
  • B. Phosphorus
  • C. Potassium
  • D. Iron
Q. Which part of the plant is primarily responsible for nutrient absorption?
  • A. Leaves
  • B. Stems
  • C. Roots
  • D. Flowers
Q. Which part of the plant is primarily responsible for the uptake of water and minerals? (2020)
  • A. Leaves
  • B. Stems
  • C. Roots
  • D. Flowers
Q. Which pigment is primarily responsible for photosynthesis in plants?
  • A. Chlorophyll a
  • B. Carotenoids
  • C. Xanthophylls
  • D. Anthocyanins
Q. Which pigment is primarily responsible for the absorption of light in photosynthesis?
  • A. Chlorophyll a
  • B. Carotenoids
  • C. Xanthophylls
  • D. Chlorophyll b
Q. Which pigment is primarily responsible for the green color of plants?
  • A. Carotenoids
  • B. Chlorophyll
  • C. Xanthophyll
  • D. Anthocyanins
Q. Which pigment is responsible for the red color in plants? (2021)
  • A. Chlorophyll
  • B. Carotenoids
  • C. Anthocyanins
  • D. Xanthophylls
Q. Which pigment is responsible for the red color in some plants? (2019)
  • A. Chlorophyll
  • B. Carotenoids
  • C. Anthocyanins
  • D. Xanthophylls
Q. Which process describes the movement of water from the roots to the leaves of a plant?
  • A. Translocation
  • B. Transpiration
  • C. Absorption
  • D. Capillarity
Q. Which process describes the movement of water from the roots to the leaves?
  • A. Translocation
  • B. Transpiration
  • C. Absorption
  • D. Capillarity
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