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Objective 2 Test
Test Description: Obj 2
Instructions: Answer all questions to get your test result.
1) The cell membrane allows certain particles to enter and leave the cell. What cell process is the membrane performing?
A
cell respiration
B
energy production
C
photosynthesis
D
selective permeability
2) What organelle produces proteins?
A
golgi apparatus
B
nucleus
C
ribosome
D
ER
3) The thermostat maintians a balanced temperature in any condition. What cell process is this similar to?
A
protein production
B
energy production
C
homeostasis
D
food storage
4) Which of the following does NOT have a cell wall?
A
plant
B
fungi
C
bacteria
5) A prokaryotic cell....
A
lacks a nucleus
B
has a nucleus
C
is found in animals.
D
contains chloroplasts
6) Which of the following best describes the role of RNA molecules that form in the nucleus when DNA is copied?
A
RNA molecules are responsible for the genetic code.
B
RNA molecules attach to the ER.
C
RNA molecules determine how an organism looks and acts.
D
RNA molecules are messengers that carry the code from the DNA to the ribosomes.
7) What are the building blocks of proteins?
A
amino acids
B
hydrogen, oxygen
C
glucose
D
peptide bonds
8) If a strand of DNA has the following code, ATTCGG, what code does the corresponding RNA have?
A
UAAGCC
B
TATGCG
C
TUUGCC
D
TAAGCC
9) Which of the following make up a DNA nucleotide?
A
phosphate, sugar, nitrogen base
B
oxygen and hydrogen
C
nitrogen, hydrogen, phosphate
D
glucose and phosphate
10) Which of the following best describes the shape of a DNA molecule?
A
long
B
double helix
C
single stranded
D
looped and twisted
*select an answer for all questions
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