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Ch 2, 7th Grade
Test Description: Cells
Instructions: Answer all questions to get your test result.
1) An instrument that makes small objects look larger
A
spectroscope
B
telescope
C
microscope
2) Who said that all plants are made of cells?
A
Theodor Schwann
B
Rudolf Virchow
C
Matthias Schleiden
D
Robert Hooke
3) The condition of things appearing larger than they are
A
focus
B
magnification
C
resolution
D
classification
4) Compound microscopes have more than one lens.
A
true
B
false
5) By using compound microscopes, scientists can obtain pictures of objects that are too small to be seen with electron microscopes.
A
true
B
false
6) Made mostly of a strong material called cellulose, this helps protect and support the cell.
A
cell wall
B
lysosome
C
cell membrane
D
nucleus
7) RIbosomes are made in the
A
mitochondria
B
nucleolus
C
Golgi apparatus
D
endoplasmic reticulum
8) Lysosomes...
A
break down old cell parts
B
make energy from food
C
capture energy from sunlight
D
all of the above
9) To be specialized means to
A
do one kind of job
B
do all the jobs
10) A group of similar cells that work together to perform a specific function
A
organ system
B
cell
C
organ
D
tissue
11) When two or more elements combine chemically, they form a
A
compound
B
element
C
molecule
D
atom
12) Energy-rich organic compounds made of the elements carbon, hydrogen, and oxygen. They can be sugar or starch
A
protein
B
carbohydrates
C
lipids
D
nucleic acid
13) Cells store energy from ___ for later use.
A
carbohydrates
B
nucleic acids
C
proteins
D
lipids
14) A group of proteins that speed up chemical reactions that are necessary for life
A
exocytosis
B
fats
C
carbohydrates
D
enzymes
15) Contain the instructions that cells need to carry out all the functions of life
A
proteins
B
carbohydrates
C
nucleic acids
D
lipids
16) How much of the human body is water?
A
1/3
B
2/3
C
3/4
D
2/5
17) Cell membranes are made of
A
a single layer of lipids
B
a double layer of proteins
C
a single layer of carbohydrates
D
a double layer of lipids
18) Which type of transport requires energy?
A
endocytosis
B
osmosis
C
facilitated diffusion
D
diffusion
19) Which type of transport requires energy?
A
endocytosis
B
exocytosis
C
osmosis
D
plasmosis
20) In active transport, molecules move from areas of low concentration to areas of high concentration.
A
false
B
true
*select an answer for all questions
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