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