Question

What are two differences and two similarities between mitosis and meiosis

A normally fuctioning cell is exposed to a drug that blocks preparation of acetyl CoA

Explain how this will affect the concentration of citrate and oxaloacetate

In the overall chemical equation of cellular respiration, what serves as an oxidizing agent and what serves as the reducing agent? What do they at upon?

Please explain your answers

Answer 1

1. Mitosis:
1. Equational division
2. One karyokinesis and one cytokinesis
3. Produces two daughter cells
4. Daughter cells are identical to the parent
5. Both diploid and haploid cells undergo mitosis

Meiosis:
1. Reductional division
2. Two nuclear divisions and one cytokinesis
3. Produces four daughter cells
4. Daughter cells are not identical to parent due to crossing over
5. Only diploid cells undergo meiosis

2. Acetyl CoA + Oxaloacetate -------------> Citrate + CoA
It is the first reaction in the TCA cycle. It is mediated by citrate synthase.
If acetyl CoA synthesis is blocked, the levels of OAA would be elevated and citrate levels would be reduced.

3. The overall equation of aerobic respiration:
C₆H₁₂O₆ + 6O₂ --------> 6CO₂ + 6H₂O + Energy
Oxidizing agent = Oxygen
Glucose is oxidized to CO₂
Oxygen is reduced to H₂O

The energy is released in the form of ATP and heat.