Plant Physiology
Biology ⇒ Plant Biology
Plant Physiology starts at 9 and continues till grade 12.
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See sample questions for grade 11
A plant cell is placed in a hypertonic solution. What will happen to the cell?
A plant is placed in a sealed chamber with no CO₂. What will happen to the rate of photosynthesis?
Describe how temperature affects the rate of photosynthesis.
Describe the difference between C₃ and C₄ photosynthetic pathways.
Describe the process of phototropism in plants.
Describe the role of guard cells in plant physiology.
A plant cell is placed in a hypertonic solution. What will happen to the cell?
A plant is placed in a sealed chamber with no CO₂. What will happen to the rate of photosynthesis?
Which of the following best describes the function of phloem?
(1) Transport of water
(2) Transport of organic nutrients
(3) Support and structure
(4) Absorption of minerals
Which of the following best describes the function of root hairs?
(1) Photosynthesis
(2) Water and mineral absorption
(3) Support
(4) Reproduction
Which of the following is a direct product of the light-dependent reactions of photosynthesis?
(1) Glucose
(2) ATP
(3) Pyruvate
(4) Starch
Which of the following is a function of abscisic acid in plants?
(1) Promotes seed germination
(2) Stimulates stomatal closure
(3) Inhibits leaf senescence
(4) Increases fruit ripening
Fill in the blank: The enzyme __________ catalyzes the fixation of CO₂ in the Calvin cycle.
Fill in the blank: The light-dependent reactions of photosynthesis occur in the __________ of the chloroplast.
Fill in the blank: The loss of turgor pressure in plant cells leads to __________.
Fill in the blank: The movement of sugars from leaves to other parts of the plant is called __________.
True or False: CAM plants open their stomata during the day to minimize water loss.
True or False: Ethylene is a plant hormone that promotes fruit ripening.
True or False: The Casparian strip is found in the endodermis of roots and helps regulate the movement of substances into the vascular cylinder.
True or False: The main function of lenticels is to facilitate gas exchange in woody stems.
