In plants, the first product of carbon fixation is the three-carbon compound 3-pga formed in the calvin cycle. 2. when such plants close their stomata on hot, dry days to conserve water, builds up in the leaf and is added to rubp in place of co2. a two-carbon product of this reaction is broken down to co2, consuming atp and generating no sugar. 3. the apparently wasteful process described in sentence 2 is called. 4. in plants, co2 is first fixed into a four-carbon compound, which moves into bundle-sheath cells and releases co2 to the calvin cycle. 5. in plants, stomata are open at night, and co2 is first fixed into a four-carbon compound, which releases co2 to the calvin cycle during the day. 6. in all three types of plants, the enzyme brings co2 into the calvin cycle.

Question

Chemistry

Adele

11 May, 10:28

In plants, the first product of carbon fixation is the three-carbon compound 3-pga formed in the calvin cycle. 2. when such plants close their stomata on hot, dry days to conserve water, builds up in the leaf and is added to rubp in place of co2. a two-carbon product of this reaction is broken down to co2, consuming atp and generating no sugar. 3. the apparently wasteful process described in sentence 2 is called. 4. in plants, co2 is first fixed into a four-carbon compound, which moves into bundle-sheath cells and releases co2 to the calvin cycle. 5. in plants, stomata are open at night, and co2 is first fixed into a four-carbon compound, which releases co2 to the calvin cycle during the day. 6. in all three types of plants, the enzyme brings co2 into the calvin cycle.

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Answers (1)

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Peter Whitaker · Answer 1

1) Answer is: C3 plants. C3 process converts carbon dioxide and ribulose bisphosphate into 3-phosphoglycerate.

2) Answer is: molecule of oxygen (O ₂).

3) Answer is: photorespiration. In this process the enzyme RuBisCO oxygenate

RuBP (r ibulose 1,5-bisphosphate).

4) Answer is: C4 plants, because four carbon molecule is the first product of this type of carbon fixation.

5) Answer is: CAM (Crassulacean acid metabolism) plants.

6) Answer is: RuBisCO (Ribulose-1,5-bisphosphate carboxylase/oxygenase).