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Cell Unit Test Review Keown Bio
Test Description: Cell Review continued. I am having issues with this one. It keeps loading as a genetic data set. If that happens to you, just ignore this one.
Instructions: Answer all questions to get your test result.
1) Eukaryotes usually contain
A
All of the choices are true
B
A nucleus
C
Specialized organelles
D
Genetic material
2) Which of the following is a function of the nucleus?
A
Contains all of the information needed to make proteins
B
Controls most of the cell's processes
C
Stores DNA
D
All of the statements are correct.
3) Which of the following is NOT found in the nucleus?
A
Chromosomes
B
DNA
C
Nucleolus
D
Cytoplasm
4) A monosaccharide is a
A
lipid
B
protein
C
carbohydrate
D
nucleic acid
5) Which of the following is a true statement concerning viruses?
A
composed of a protein coat and nucleic acids inside.
B
infect only animals and humans
C
they can be cured with antibiotics
D
they are the smallest of all the cell types
6) The movement of molecules from an area of high concentration to an area of low concentration is known as ______. (14)
A
hydrolysis
B
dehydration reaction
C
active transport
D
diffusion
7) What is the MAIN function of a semi-permeable membrane?
A
to maintain a free flow of molecules
B
to control materials entering and leaving the cell
C
to regulate energy production in the cell
D
to keep the cell's shape
8) Which of the following statement about enzymes is NOT true?
A
enzymes work best at a specified pH
B
enzymes are organic catalysts.
C
enzymes are proteins
D
all enzymes work inside cells
9) What is the term used to describe the energy needed to get a reaction started?
A
cohesion energy
B
adhesion energy
C
activation energy
D
chemical energy
10) Which of the following contain a nucleus?
A
eukaryotes
B
prokaryotes
C
bacteria
D
organelles
11) An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes:
A
solutes to exit the cell causing it to shrivel
B
solutes to enter the cell causing the cell to burst
C
water to enter the cell causing the cell to burst
D
water to leave the cell causing the cell to shrink
12) The cell membrane contains channels and pumps that help move materials from one side of the cell to the other. What are these channels and pumps made of?
A
lipids
B
proteins
C
carbohydrates
D
nucleic acids
13) What means of particle transport requires input of energy from the cell?
A
osmotic pressure
B
osmosis
C
active transport
D
facilitated diffusion
14) Choose the sentence below that is the best description of the function of phospholipids of a cell membrane.
A
they are responsible for assembling proteins
B
they are the main component that gives cell's their shape
C
they speed up chemical reactions
D
they direct the production of proteins from DNA
15) Which terms refers to cells having different job in an organism?
A
unicellular
B
cell specialization
C
multicellular
D
levels of organization
16) The cell theory applies to
A
plants and animals
B
all of the choices are correct.
C
multicellular organisms
D
bacteria
17) a substance with a pH of 6 is called
A
both an acid and a base
B
neither an acid or a base
C
a base
D
an acid
18) Which of the following is NOT found in the nucleus?
A
cytoplasm
B
chromosomes
C
nucleolus
D
DNA
19) Prokaryotes lack
A
genetic material
B
a nucleus
C
cytoplasm
D
a cell membrane
20) Carbohydrates made by joining MANY sugar molecules together
A
polypeptide chain
B
polysaccharide
C
monosaccharide
D
nucleic acids
*select an answer for all questions
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