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Cert Bio II - Cells
90
3. Human red blood cells and onion epidermal cells are similar in that they both
A. posses cell walls.
B. posses central vacuoles.
C. have no nuclei.
D. have no chloroplasts.
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5.
Which of the following features of the neurone shown in the diagram above are essential for the coordinating function of
an organism?
(1) possession of a nucleus
(2) long cellular extension
(3) branched endings
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)
6. Which of the following cells possess chloroplasts ?
(1)
a guard cell
(2)
a leaf mesophyll cell
(3)
an onion epidermal cell
A. (1) and (2) only
B. (1) and (3) only
C. (2) and (3) only
D. (1), (2) and (3)
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7. Which of the following descriptions of the different parts of a plant cell are correct?
(1)
The nucleus contains genetic material.
(2)
The vacuole contains water and dissolved mineral salts.
(3)
The cell wall is selectively permeable to dissolved mineral salts.
A.
(1) and (2) only
B.
(1) and (3) only
C.
(2) and (3) only
D.
(1), (2) and (3)
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95
6.
When the word “box” is viewed under the microscope, which of the following can be seen?
A. box
B. pox
C. xop
D. xoq
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2.
Which of the following is a correct step for using the microscope?
A.
Use the coarse adjustment knob for focusing under high power.
B.
Reduce the light intensity for observation under high power.
C.
Close one eye when observing the specimen under the microscope.
D.
Position the specimen to the centre of the field of view before changing to a higher magnification.
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6. The diagrams below show three types of human cells:
All three types of cells
A.
can move.
B.
have a nucleus.
C.
have a cell membrane.
D.
can undergo cell division.
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4.
In preparing a slide of an onion epidermal peel for microscopic examination, iodine solution is added to the peel. What
is the use of the iodine solution?
A.
to supply minerals to the cells
B.
to test for the presence of starch
C.
to prevent the cells from bursting
D.
to make certain cell structures more distinct
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23.
All cells in a flowering plant have
A.
A nucleus.
B.
A cell membrane.
C.
A cell wall.
D.
Chloroplasts.
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2.
A student examines the epidermis of a leaf under the microscope. In order to observe more cells within the field of view,
he should
A.
increase the illumination of the slide.
B.
stain the epidermis with iodine solution.
C.
use an objective with a lower magnification.
D.
reduce the distance between the slide and the objective.
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3.
It is difficult to see the nuclei of cells under light microscope. Which of the following would help to make the nuclei
more visible?
A. staining the cells before mounting.
B. using a thinner glass slide for mounting the cells.
C. increasing the illumination of the cells.
D. reducing the distance between the cells and the objective lens.
4.
Which of the following correctly states the difference between a root hair cell and a mesophyll cell?
A. Root hair cell
Mesophyll cell
A.
dead cell
living cell
B.
chlorophyll absent
chlorophyll present
C.
can transport water
cannot transport water
D.
not covered with cuticle
covered with cuticle
29. Which of the following statements about cellulose in plant cells is correct?
A. It stores energy for the plant cells.
B. It can be stained blue-black with iodine solution.
C. It helps to maintain the shape of the plant cells.
D.
It regulates the movement of water in and out of the plant cells.
34. Which of the following cell types is/are capable of locomotion?
(1)
ovum
(2)
phagocyte
(3)
motor neurone
A.
(2) only
B.
(3) only
C.
(1) and (2) only
D.
(1) and (3) only
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Cert Bio II – Cells Answer
90
3. D
91
5. D
93
7. A
95
6. D
96
2. D
97
6. C
98
4. D
99
23.C
01
2.C
02
3. A
6. A
4. B
29. C
34. A
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