WorksheetsBiology Nmasr Review
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
Building blocks of proteins are
a)
Simple sugars
b)
Amino acids
c)
Monosaccharides
d)
Polysaccharides
2.
Two structures present in plant cells but NOT animal cells are:
a)
Chloroplasts and centrioles
b)
Chloroplasts and cell wall
c)
Chloroplasts and cell membrane
d)
Chloroplasts and ribosomes
3.
Controls what goes in and out of the cell
a)
Cell membrane
b)
Cell wall
c)
Chloroplasts
d)
Nucleus
4.
One of the main difference between prokaryotic and eukaryotic cells is that -
a)
eukaryotic cells have a nucleus
b)
eukaryotic cells have a smaller cell nucleus
c)
prokaryotic cells do not have a plasma membrane
d)
prokaryotic cells are always much larger
5.
The process of photosynthesis converts which type of energy to chemical energy?
a)
heat
b)
kinetic
c)
potential
d)
light
6.
What is true about enzymes?
a)
They act on nonspecific, randomly chosen substrates.
b)
After a reaction, they cannot be reused.
c)
They can speed up metabolic processes in the body.
d)
They cannot change shape.
7.
The organelle that provides energy for the cell and acts like the "power house" is the
a)
Nucleus
b)
Lysosome
c)
Golgi bodies
d)
Mitochondria
8.
What makes a water molecule polar?
a)
Water has the ability to be frozen.
b)
A water molecule has a slight opposing charge on each end
c)
A water molecule is made up of three atoms.
d)
The pH of pure water varies with the temperature.
9.
Carbon can only for triple bonds
a)
Maybe
b)
True
c)
False
d)
I don't know
10.
Neutral solutions have a pH of ______________?
a)
4.5
b)
7
c)
6
d)
21
11.
Which movement of substances through a cell membrane against a concentration gradient requires energy?
a)
Osmosis
b)
Facilitated diffusion
c)
Active transport
d)
Exocytosis
12.
The building blocks of carbohydrates are
a)
Monosaccharides
b)
Carbohydrates
c)
Proteins
d)
Nucleic Acids
13.
At what point in the process of diffusion is dynamic equilibrium reached?
a)
when the movement of the molecules stops being random
b)
when the molecules are mixed and stop moving
c)
when the rate of change in the solution slows by one half
d)
when the rate of change in the solution slows by one half
14.
Which of the following is true about chemical bonding?
a)
Breaking bonds releases energy, requires water, and is known as hydrolysis.
b)
Breaking bonds stores energy, releases water, and is known as hydrolysis.
c)
Building bonds requires Carbon Dioxide and releases hydrogen and is known as combustion.
d)
Building bonds releases Oxygen, requires Carbon, and is known as hydrolysis.
15.
An ionic bond is formed when two atoms share electrons
a)
True
b)
False
c)
Maybe
d)
Who knows?
16.
Which organelle converts sugars into energy?
a)
lysosome
b)
nucleus
c)
mitochondrion
d)
ribosome
17.
A flu virus could easily infect a cell without the presence of
a)
mitochondria
b)
lysosomes
c)
locomotion
d)
Solutes
18.
Which English Scientist coined the term "cell"?
a)
Virchow
b)
Scheiden
c)
Hooke
d)
Schwann
19.
Which class of macromolecules store and communicate genetic information?
a)
nucleic acids
b)
carbohydrates
c)
lipids
d)
proteins
20.
Which cell organelle contains coded directions for production of proteins?
a)
endoplasmic reticulum
b)
lysosome
c)
nucleus
d)
Golgi apparatus
100 %
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