Cytology questions | form five Biology

Diagram A and B represent two cell organelles as seen under electronic  microscope.

1. (i) Identify the two cell organelles

          (ii) Name the structures numbered 1-8

2. Without using diagrams, outline the process taking place in the structures labeled 3 and 8
3. Explain briefly how organelles 1 and 2 are adapted to the functions they perform.

Answer / Solution

UNSOLVED

1. With the aid of diagrams describe the structure and functions of the following cell organelles

         i) Golgi apparatus

         ii) Chloroplast

2. The table below shows the relative amount of DNA in a cell of organism X measured during mitosis and meosis

1. Account for the differences in DNA content among the different phases.
2. What would be the probable amount of DNA content in late telophase I and prophase II of meiosis? Explain.

Answer / Solution

UNSOLVED

1. What is meiosis?
2. Outline the events occuring in the 1^st meiotic prophase and 1^st meiotic metaphase . Illustrate your account with diagrams based on two pairs of chromosomes only.

Answer / Solution

UNSOLVED

The photomicrographs below; A, B, C and D swho different stages of animal cell undergoing division.

1. Giving reason name the type of cell division shown in the microphotographs.
2. (i) Identify the stages of cell division shown in photograph A, B, C and D

          (ii) Describe the events taking place at each of the four stages in A, B, C and D

100. (i)Explain the importance of the type of cell division mentioned in (a) above.

          (ii)Where and when in a human being are likely to encounter this type of cell division?

500. Basing on only 3 pairs of chromosomes , draw large and well labelled diagram to represent stage B and D.

Answer / Solution

UNSOLVED

1. Point out two similarities and two differences between an animal cell and a plant cell
2. Outline the functions of a nucleus.

Answer / Solution

UNSOLVED