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The Cell & Microscope - JCT Science

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

The job of this organelle is to direct activities of the cell?

a)

Ribosome

b)

Cytoplasm

c)

Mitochondria

d)

Nucleus

2.

Thick fluid between the nucleus and cell membrane is called?

a)

Cytoplasm

b)

Cell Membrane

c)

Nucleus

d)

Vacuole

3.

In a plant cell only, a ridged outer layer that surrounds the cell membrane?

a)

Nucleus

b)

Cell Wall

c)

Cytoplasm

d)

Cell Membrane

4.

What is the organelle found only in plants and some protists. Contains the pigment chlorophyll that absorbs sunlight?

a)

Ribosomes

b)

Chloroplasts

c)

Cell Wall

d)

Mitochondria

5.

A membrane bound sac that is filled with fluid. It stores water, food, waste and other substances.

a)

Lysosome

b)

Vacuole

c)

Mitochondria

d)

Nucleus

6.

What organelle is letter A? (the powerhouse of the cell)

a)

Mitochondria

b)

Nucleus

c)

Lysosome

d)

Vacuole

7.

What organelle is letter E (the director or brain of the cell)

a)

Mitochondria

b)

Nucleus

c)

Vacuole

d)

Ribosomes

8.

What organelle is letter G? (this forms the outer boundary in an animal cell)

a)

Cell Membrane

b)

Endoplasmic Reticulum

c)

Golgi Apparatus

d)

Cell Wall

9.

Tiny organelles scattered throughout the cell that assemble (build) the compounds called proteins.

a)

Vacuole

b)

Endoplasmic Reticulum

c)

Golgi Apparatus

d)

Ribosomes

10.

What microscope part is letter F?

a)

Eyepiece

b)

Diaphragm

c)

Stage

d)

Objective lens

11.

What microscope part is letter A (Holds the objective lenses)

a)

Stage

b)

Nosepiece

c)

Diaphragm

d)

Body Tube

12.
A microscope is an instrument that.
a)
makes faraway objects look closer.
b)
makes small objects appear larger.
c)
decreases the size of small objects.
d)
increases the size of small objects.
13.
When you focus on a new specimen, always begin with
a)
low power and coarse adjustment.
b)
low power and fine adjustment
c)
high power and coarse adjustment
d)
high power and fine adjustment
14.
If your teacher asks you to move a microscope to table, how do you carry it?
a)
by the body tube and the eyepiece
b)
with one hand
c)
one hand on the arm and the other under the base
d)
with one hand on the base and the other on the eyepiece.
15.

Who first used the term "cell" to describe the empty "rooms" he saw in his microscope?

a)

Leeuwenhoek

b)

Virchow

c)

Pasteur

d)

Hooke

16.

What is the basic unit of life in all living things?

a)

atoms

b)

molecules

c)

cells

d)

elements

17.
When looking at a specimen on your slide, you should always start with the
a)
low objective lens
b)
medium objective lens
c)
high objective lens
d)
super extra high power lens
18.
The__________ sharpens the image under high magnification.
a)
the diaphragm
b)
fine adjustment knob
c)
coarse adjustment knob
d)
the ocular
19.
The _______focuses the image under low power.
a)
revolving nosepiece
b)
fine adjustment knob
c)
coarse adjustment knob
d)
arm/neck
20.
Never use this when on high power.
a)
Fine adjustment
b)
Diaphragm
c)
Course adjustment
d)
Stage clips