The light reactions of photosynthesis generate ATP ATP and NADPH NADPH . The dark reactions utilize these products to drive the conversion of CO 2 CO2 into carbohydrate in a set of reactions known as the Calvin cycle. The overall balanced equation for the Calvin cycle can be written as

3 CO 2 + 9 ATP + 6 NADPH ⟶ glyceraldehyde-3-phosphate + 9 ADP + 6 NADP + + 8 P i

Label the intermediates that use CO2, ATP and NADPH in the cycle.

See the explanation for the answer.

Explanation:

3 CO2 + 9 ATP + 6 NADPH ⟶ glyceraldehyde-3-phosphate + 9 ADP + 6 NADP +  8 P i

The intermediates that use CO2, ATP and NADPH are as follows;

3 Ribulose-1,5bisphosphate + 3CO2 ⟶ 6 3-phosphoglycerate

6 3-phosphoglycerate + 6ATP ⟶ 6 1,3-bisphosphoglycerate + 6ADP

6 1,3-bisphosphoglycerate+ 6NADPH ⟶ 6 glyceraldehyde-3phosphate + 6NADPH + 6pi

fertilization, pictured in figure 24.23a is the process in which gametes (an egg and sperm) fuse to form a zygote. the egg and sperm each contain one set of chromosomes. to ensure that the offspring has only one complete diploid set of chromosomes, only one sperm must fuse with one egg. in mammals, the egg is protected by a layer of extracellular matrix consisting mainly of glycoproteins called the zona pellucida. when a sperm binds to the zona pellucida, a series of biochemical events, called the acrosomal reactions, take place. in placental mammals, the acrosome contains digestive enzymes that initiate the degradation of the glycoprotein matrix protecting the egg and allowing the sperm plasma membrane to fuse with the egg plasma membrane, as illustrated in figure 24.23b. the fusion of these two membranes creates an opening through which the sperm nucleus is transferred into the ovum. the nuclear membranes of the egg and sperm break down and the two haploid genomes condense to form a diploid genome.

explanation: