Cytology questions | form five Biology

1. What is glycolysis?
2. Summarize the essential features of glycolysiswhich lead to the release of energy from a molecule of glucose (flow chart is unnecessary)

Answer / Solution

UNSOLVED

Figure 3 below shows an ultrastructure of a cell.

1. (i) Giving reasons ,state whether the cell is prokaryotic or eukaryotic.

          (ii) Give the names of the structures labelled M, N, O, P, Q, R, S, T, U and V.

2. State one function of each of the structures N, R, S and T.

Answer / Solution

UNSOLVED

Below (Fig 4) is a diagram of an acinar cell of a pancreas involved in synthesis  and secretion of an inactive enzyme (Zymogen).

1. Name the parts labelled A, B, C, D, E, F, G and H.
2. Briefly explain how organelles A, C, D and H are involved in the synthesis and secretion of the inactive enzyme.

Answer / Solution

UNSOLVED

Figure 1 below is a diagram of the “fluid mosaic model” of the cell membrane structure . Study the figure carefully and then answer the questions which follow it.

1. Name the structures represented by labels A, B, C and D
2. Name the bichemical substance formed when E and F combine.
3. What role does structure F play in the functions of a membrane?

Answer / Solution

UNSOLVED

1. Account for the fact that megaspores of Dryoptens sp are large and microspores are small.
2. Explain how destructing an enzyme may affect its efficiency as a catalyst.

Answer / Solution

UNSOLVED