30 Questions
What is the main function of xylem in plants?
Provide mechanical support
What is the function of phloem in plants?
Transport sugars and amino acids
What is the structure of xylem vessels that facilitates water transport in plants?
Lumen of xylem cells made through the transport tubes
What would be the consequence if xylem vessels were not adapted to transport water effectively?
Decreased translocation of sugars and amino acids
What is the function of translocation in plants?
Transporting sugars from the leaves to other parts of the plant
What is the purpose of the ringing experiment in plants?
To show the accumulation of sugar and retention of water in roots
What is the main function of root hairs in plants?
To absorb water and minerals from the soil
What happens when water enters root hair cells from the soil?
The water potential in root hair cells becomes higher than that in soil solution
What is the role of aphids in relation to plants?
To feed on sugars transported in the phloem sieve tubes
What is the function of sieve tube elements in plants?
To transport food substances throughout the plant
Where does translocation originate in plants?
From the leaves, where sugars are produced
What is the source of sugars used for translocation in plants?
Companion cells
What causes bulges to form in plants during the ringing experiment?
Accumulation of sugars and retention of water at the cut site
What is a characteristic feature of root hairs that aids in water and mineral absorption?
Increased surface area due to branching structure
What is the main function of the palisade mesophyll in the leaf?
Absorbing sunlight for photosynthesis
What is the function of the spongy mesophyll in the leaf?
Conducting gaseous exchange
What is the role of the cuticle in the leaf?
Reducing water loss through evaporation
What is the main function of the upper epidermis in the leaf?
Allowing light to pass through
Which tissue in leaves has the least amount of chloroplasts but is covered with a thin film of moisture to allow carbon dioxide to dissolve in it?
Spongy mesophyll
What is the main role of chloroplasts in the leaf?
Converting light energy into chemical energy during photosynthesis
What is the main function of guard cells in plants?
Regulating the opening and closing of stomata
During the day, what causes the guard cells to swell and become turgid?
Active transport of potassium ions into the guard cells
What is the primary function of the xylem tissue in plants?
Transporting water and mineral salts from roots to other parts of plants
What is the role of phloem tissue in plants?
Transporting sucrose from leaves to other parts of plants
What does the presence of intercellular air spaces in the spongy mesophyll allow for inside a leaf?
Rapid diffusion of gases into and out of the cells
What happens during the night with regard to the guard cells and stomata?
Potassium ions move out of the guard cells via diffusion
What is the function of chlorophyll in photosynthesis?
Trapping light energy and converting it into chemical energy
What is the purpose of the stomatal openings in a leaf?
Rapid diffusion of gases into and out of the cells
What is transported through phloem tissue in plants?
Sucrose from leaves to other parts of plants
What is transported through xylem tissue in plants?
Water and mineral salts from roots to other parts of plants
Test your understanding of the transport in plants chapter, focusing on concepts such as xylem, phloem, translocation, and vascular bundles. The quiz includes knowledge from previous chapters and commonly tested MCQ and structured questions.
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