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WorksheetsUnicellular/Multicellular Organisms
Total questions: 25
Worksheet time: 6hrs 15mins
Name
Class
Date
1.
What is the total magnification of a microscope with 2 lenses when one has a magnification of 15, and the other 30?
a)
15
b)
30
c)
45
d)
450
2.
Cells in multicelled organisms
a)
all look the same.
b)
all have the same structure.
c)
are often quite different from each other.
d)
are the same size in every part of the organism.
3.
What is the function of a cell membrane?
a)
to protect and support the cell
b)
to perform different functions in each cell
c)
to control what enters and leaves the cell
d)
to form a hard outer covering for the cell
4.
Which organelle is the control center of a cell?
a)
mitrochondrion
b)
ribosome
c)
nucleus
d)
chloroplast
5.
Specialized cell are found only in
a)
animals.
b)
single-celled organisms.
c)
bacteria.
d)
multi-celled organisms.
6.
Which organelles produce most of the energy needed by a cell?
a)
mitochondria
b)
chloroplasts
c)
ribosomes
d)
Golgi bodies
7.
Which organelles produce proteins in the cell?
a)
Golgi bodies
b)
chloroplasts
c)
ribosomes
d)
vacuoles
8.
What is the function of a cell wall?
a)
to protect and support the cell
b)
to perform different functions in each cell
c)
to prevent water from passing through it
d)
to prevent oxygen from entering the cell
9.
Chromatin in the nucleus of a cell
a)
contains instructions that direct the functions of a cell.
b)
controls what substances come into and out of a cell.
c)
protects the ncleus with a rigid layer of cellulose.
d)
produces ribosomes and proteins.
10.
which organelles store food and other materials needed by the cell?
a)
mitochondria
b)
chloroplasts
c)
ribosomes
d)
vacuoles
11.
Which organelles release chemicals that break down large food particles into smaller ones?
a)
endoplasmic reticulum
b)
Golgi bodies
c)
lysosomes
d)
vacuoles
12.
The invention of the microscope made it possible for people to discover and learn about
a)
plants.
b)
skin.
c)
animals.
d)
cells.
13.
What is found in both plant and animal cells and controls what comes into and out of them?
a)
cell wall
b)
cytoplasm
c)
lysosomes
d)
cell membrane
14.
A jelly like substance where the organelles are found
a)
Cyctoplasm
b)
Chlorophyll
c)
Cell membrane
d)
Vacuoles
15.
What is found in plant cells that allows them to make food from sunlight?
a)
cell wall
b)
chloroplasts
c)
cytoplasm
d)
ribosomes
16.
Which of the following is NOT a characteristic that all living things share?
a)
a cellular organization
b)
using energy
c)
movement
d)
reproduction
17.
Which of the following is a biotic factor in the prairie ecosystem?
a)
water
b)
sunlight
c)
soil
d)
grass
18.
A change in an organisms surroundings that causes it to react is called
a)
a response.
b)
a stimulus.
c)
energy.
d)
development.
19.
Which of the following statements is part of the cell theory?
a)
Only plants are composed of cells.
b)
All cells are produced from other cells.
c)
Cells can be produced from nonliving matter.
d)
Cells are one of several basic units of structure and function in lving things.
20.
Which of the following statements is NOT part of the cell theory?
a)
Cells are the basic unit of structure and function in living things.
b)
All cells are produced from other cells.
c)
Only animals are composed of cells.
d)
All living things are composed of cells.
21.
What happens during meiosis?
a)
Each sex cell loses half of its chromosomes.
b)
Chromosomes pairs separate to form new sex cells.
c)
Each sex cell copies itself to form four new chromosomes.
d)
Chromosome pairs remain together when new sex cells are formed.
22.
When sex cells combine to produce offspring, each sex cell will contribute
a)
one fourth of the normal number of chromosomes.
b)
half the normal number of chromosomes.
c)
the normal number of chromosomes.
d)
twice the normal number of chromosomes.
23.
Which is needed for sexual reproduction?
a)
meiosis
b)
mitosis
24.
Type of cell division that results in an organisms growth and development.
a)
meiosis
b)
mitosis
25.
Which type of cell division allows for variation of an organisms offspring?
a)
meiosis
b)
mitosis
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