REPUBLIC OF CAMEROON REPUBLIQUE DU CAMEROUN

Peace-Work-Fatherland Paix-Travail-Patrie

The university of Bamenda Université de Bamenda

Department of Biological Sciences Départment des Sciences Biologiques

CELL BIOLOGY (BIO 201) TUTORIAL

SECTION A: Definitions: Cell, Cytosol, Apoptosis, DNA, ATP, RNA, Glycolysis, Citric Acid cycle, Photosynthesis,

1- Concerning the history of the cell, who was the first scientist to observe it?

a- Marcello Malpighi and Nehemiah Grew

b- Robert Hooke

c- Anton Van Leeuwenhoek

2- Eukaryotes are distributed among this kingdom:

a- Unicellular, Plantae, Fungi and Animalia

b- Animalia, Fungi, Plantae and Eubacteria

c- Archaebacteria, Unicellular, Plantae and pseudomonads

4- ATP synthase is the enzyme which carried out the synthesis of ATP:

a- In mitochondria

b- in chloroplast

c- In chloroplast and mitochondria

d- In cytoplasm

5- At the end of glycolysis, a single glucose molecule produces

a- 1 pyruvate + 2 ATP + 2 NADH + 2H

2

O

b-2 pyruvate + 2 ATP + 2 NADH + 2H

O

b- In mitochondria

c- In cytoplasm in aerobic

d- In cytoplasm in anaerobic

7- The Kreb’s cycle are summarized below:

a- 7 reactions occur in cytoplasm

b- 4 reactions beginning in the cytoplasm and ended in the mitochondria

c- 8 reactions occur in the mitochondria

8- At the end of acid citric cycle, a single glucose molecule produces:

9- The process of polypeptide synthesis is called:

a- Metabolism

b- Transcription

c- Translation

d- Both c and d

10- Intercellular communication occur between a special structure like:

a- Gap junction

2- In the table compared Prokaryote cell than Eukaryote

3- Draw the structure of eukaryote cell seen with the light microscope. Are there the differences between this structure

and the structure seen with electron microscope? (conclude by giving the role of light microscope and electron

microscope in cell observation.

4- Give the difference techniques of cell isolation

5- In the table, give the principals functions of cell membrane, cytoplasm and various organelles

6- In the table, show the difference between plant cell and animal cell

7- After defining the two-cell division, compare.

8- what are the principal phases of photosynthesis? In which parts of cell each of them occurs?

9- Give the major kind of biomolecules with 3 roles.

10- What is the basic unit of protein? Give his general structure.