Cells 1

1. Which of the following is not a function of the Cell Membrane?

a. Controls what enters and leaves the cell.
b. Partially Permeable.
c. Fully Permeable
d. Gives cell its Shape.

2. An example of diffusion is the movement of:

a. sucrose from phloem tubes to the companion cell
b. oxygen from alveoli to capillaries
c. glucose from the digestive tract to the villi
d. sodium across all cell membranes

3. During osmosis, the movement of water molecules through the semi-permeable membrane continues until

a. the osmotic Pressure equals the osmotic Potential
b. the amount of water molecules is equalized on both sides.
c. turgidity and flaccidity are equal
d. the hydrostatic pressure equals the osmotic Pressure

4. Which of the following properties of membranes are required for rapid gaseous exchange? : (i)Moist (ii)Thin-walled (iii)Small surface area to volume ratio

a. i and ii only
b. i and iii only
c. ii and iii only
d. i ii and iii

5. In which of the following structures does photosynthesis occur?

a. Chloroplast
b. Ribosomes
c. Mitochondria
d. Golgi Bodies

6. Which of the following organisms have cellulose walls as part of their structure? : (i)Fungi (ii)Plants (iii)Bacteria

a. I and II only
b. I and III only
c. II and III only
d. I, II and III

7. Capillaries have very thin walls which have only one layer of cells. This is to allow

a. rapid diffusion of gases and glucose
b. slow diffusion of gases and glucose
c. rapid diffusion of protein and fats
d. slow diffusion of protein and fats

8. The Smooth Endoplasmic Reticulum:

a. Contains ribosomes attached to it.
b. Packages and assembles proteins.
c. Responsible for packaging fats and lipids.
d. Contains genetic information

9. Respiration is given by: x + Oxygen → Carbon Dioxide + Water + ATP. x is:

a. Water
b. Heat Energy
c. Adenosine Di-Phosphate
d. Glucose

10. The Mitochondria is:

a. The powerhouse of the body
b. The powerhouse of the tissue
c. The powerhouse of the cell
d. Where anaerobic respiration takes place.

11. Plant cells have:

a. No cell walls
b. No cell membrane
c. Small Temporary Vacuole
d. Large Permanent Vacuole

12. All cells:

a. have cell walls
b. have cell membranes
c. have large permanent vacuoles
d. have chloroplasts

Cells 1^HSB

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