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The next two questions refer to the diagrams below representing an organelle from a cell.

Question3:

The organelle in the diagram is:

a) The nucleus of a cell b) A Mitochondria c) Part of the cell membrane d) A golgi body

Question 4:

The function of this organelle is to:

a) Control the metabolism of the cell b) Modify proteins by adding a glycoprotein c) Synthesis proteins d) Package molecules into vesicles before secreting them from the cell.

Question 5:
Which one of the following statements best describes one difference between prokaryotic cells and eukaryotic cells?

a) Prokaryotic cells do not have the cellular components for autotrophic nutrition.
b) Prokaryotic cells do not have a nuclear membrane.
c) Prokaryotic cells have membrane-bound organelle structures different from those of eukaryotic cells.
d) Prokaryotic cells have a higher degree of specialisation than eukaryotic

Question 6
Anaerobic pathways of ATP production:
a) Produce ATP in the absence of oxygen
b) Produce ATP without glucose
c) Occur in the mitochondria of the cell
d) Produce more ATP than aerobic pathways

Question 9: Both facilitated transport and active transport across cell membranes involve:

a) Energy expenditure b the cell
b) Movement of a substance down its concentration gradient from high concentration to low
c) Proteins in the plasma membrane acting as carrier molecules
d) A substance moving from outside to inside a cell across the plasma membrane

Question 13
Mammalian sperm sex cell expends a large amount of energy in moving through the female reproductive tract. On the basis of this information you would predict that these cells would contain a large amount of:
a) Vacuoles
b) Mitochondria
c) Ribosomes
d) Chloroplasts

Question 15
Refer to the following diagram, which represents part of a cell membrane:

[pic]

An ATP-driven pump