Biology
Plant Transport and Physiology
2,012 Questions
Access a comprehensive set of questions on plant transport mechanisms and physiological adaptations. Topics include water movement, translocation of food, and plant responses to external stimuli. These biology questions are essential for medical entrance exams and other science competitive tests.
Xylem and phloem transportTranspiration and evaporationPlant adaptationsGeotropic and phototropic responsesWater absorption by rootsRespiration in roots
Plant Transport and Physiology Questions
What is the term for the process by which plants release water vapor into the atmosphere?
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Evaporation
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Condensation
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Precipitation
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Transpiration
D
Correct answer
Explanation
Transpiration is the process by which plants release water vapor into the atmosphere through their leaves.
What is the term for the process by which plants absorb groundwater and release it into the atmosphere through their leaves?
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Evaporation
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Transpiration
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Infiltration
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Percolation
B
Correct answer
Explanation
Transpiration is the process by which plants absorb groundwater and release it into the atmosphere through their leaves. This process contributes to the water cycle and helps regulate the Earth's climate.
What is the process by which plants absorb water and nutrients from the soil?
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Transpiration
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Photosynthesis
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Respiration
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Nitrogen fixation
A
Correct answer
Explanation
Transpiration is the process by which plants absorb water and nutrients from the soil through their roots and release water vapor into the atmosphere through their leaves.
Which of the following is a common characteristic of plants that grow in wet environments?
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Large leaves
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Thin leaves
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Short stems
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Dull flowers
A
Correct answer
Explanation
Plants that grow in wet environments often have large leaves to increase their surface area for absorbing water.
Which of the following is a common characteristic of plants that grow in high-salinity environments?
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Succulent stems
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Thick leaves
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Long roots
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Bright flowers
A
Correct answer
Explanation
Plants that grow in high-salinity environments often have succulent stems to store water and reduce water loss.
What is the process by which plants release water vapor into the atmosphere?
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Photosynthesis
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Transpiration
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Respiration
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Decomposition
B
Correct answer
Explanation
Transpiration is the process by which plants release water vapor into the atmosphere through their leaves.
What is the process by which plants absorb water and nutrients from the soil?
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Photosynthesis
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Respiration
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Transpiration
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Absorption
D
Correct answer
Explanation
Absorption is the process by which plants take in water and nutrients from the soil through their roots.
What is the term used to describe the process by which plants release water vapor into the atmosphere?
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Evaporation
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Condensation
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Precipitation
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Transpiration
D
Correct answer
Explanation
Transpiration is the process by which plants release water vapor into the atmosphere.
What is the term for the process by which trees lose their leaves in response to drought?
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Defoliation
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Desiccation
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Abscission
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Transpiration
C
Correct answer
Explanation
Abscission is the process by which trees lose their leaves in response to drought.
What is the term for the process by which water is lost from plants through their leaves?
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Evaporation
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Transpiration
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Condensation
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Precipitation
B
Correct answer
Explanation
Transpiration is the process by which water is lost from plants through their leaves.
What is the term for the process by which trees absorb water from the soil?
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Osmosis
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Diffusion
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Transpiration
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Absorption
D
Correct answer
Explanation
Absorption is the process by which trees absorb water from the soil.
What is the process by which water moves from plants to the atmosphere called?
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Infiltration
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Recharge
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Percolation
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Transpiration
D
Correct answer
Explanation
Transpiration is the process by which water moves from plants to the atmosphere.
Transpiration is the process by which plants release water vapor into the atmosphere. What is the primary mechanism that drives transpiration?
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Diffusion
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Osmosis
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Active Transport
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Evaporation
D
Correct answer
Explanation
Transpiration occurs when water evaporates from the leaves of plants through small pores called stomata. This process is driven by the evaporation of water from the leaf surfaces.
Which of the following factors does not influence the rate of transpiration?
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Temperature
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Humidity
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Wind Speed
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Sunlight Intensity
D
Correct answer
Explanation
Sunlight intensity does not directly affect the rate of transpiration. Temperature, humidity, and wind speed are the primary factors that influence the rate of transpiration.
The combined process of evaporation and transpiration is known as (ET) or (ET_0). What does (ET) stand for?
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Evapotranspiration
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Evaporative Transpiration
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Effective Transpiration
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Empirical Transpiration
A
Correct answer
Explanation
Evapotranspiration (ET) is the term used to describe the combined process of evaporation from the Earth's surface and transpiration from plants.