Question

what do cam plants store in their vacuoles

Sucrose is synthesized from photosynthetically formed triose phosphates in the O A) companion cell OB) xylem. O C) mesophyll cell cytoplasm. OD) stroma. E) sieve tube member Question 23 (2 points) Sucrose transport to the leaf's vascular bundle occurs by: A) diffusion OB) none of the above. OC) light D) active transport.

Answer 1

Answers :

1. CAM plant store Malic acid in their vacuoles.

• During day time, malic acid breaks into pyruvate and CO2.
• This CO2 got fixed in Calvin cycle.
• Pyruvate is used up to regenerate PEP.

2. C) Mesophyll cell cytoplasm.

• As we know, leaves are the kitchen of plant.
• Mesophyll is the photosynthetic tissue of leaf.
• So sucrose is synthesized phhotosynthetically in the cytoplasm of mesophyll cells.

3. D) Active transport

• Movement of sugars in phloem begins at the source,where sugars are loaded (actively transported) into sieve tube.
• Loading of phloem sets up a qater potential gradient the mass movement of sugar.

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