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Cells And DNA Final Review
Test Description: This a review of Fall 2013 semester consisting of SEPUP: Cells World Health and Nowicki's Biology - DNA
Instructions: Answer all questions to get your test result.
1) What is the pathogen that causes AIDS?
A
protist
B
bacteria
C
eukaryote
D
virus
2) Which statement best explains the role of ribosomes in protein synthesis?
A
Ribosomes are the sites where DNA is transcribed into mRNA.
B
Ribosomes assemble chains of proteins from pieces of DNA in the nucleus.
C
Ribosomes are the sites where the message in the mRNA is translated into proteins.
D
Ribosomes carry mRNA to the cytoplasm where it is translated into DNA.
3) If the DNA code read ATCG, which choice below would be the sequence of an RNA strand that would bind with the DNA strand?
A
TAGC
B
CGUT
C
UAGC
D
ATCG
4) Each nucleotide triplet in mRNA that specifies a particular amino acid is called a(n)
A
mutagen
B
codon
C
exon
D
anticodon
5) Which of the following organic molecules are most closely related to nucleic acids?
A
nucleotides
B
sugars
C
amino acids
D
fatty acids
6) During transcription
A
protiens are synthesized.
B
translation occurs.
C
DNA is replicated.
D
RNA is produced.
7) Which of the following organic molecules are classifed as carboyhydrates?
A
nucleotides
B
amino acids
C
sugars
D
fatty acids
8) DNA is important for cellular activities because DNA
A
is the major component of cytoplasm.
B
increases the solubility of nutrients.
C
is a structural component of cell membranes.
D
codes for the production of proteins.
9) During replication, a complementary strand of DNA is made for each original DNA strand. Thus, if a portion of the origical strand read CCTAGCT then the new strand would be
A
AAGTATC
B
TTGCATG
C
GGATCGA
D
CCTAGCT
10) How many codons are needed to specificy three amino acids?
A
12
B
9
C
6
D
3
11) Which of the following organic molecules are closely related to proteins?
A
fatty acids
B
sugars
C
nucleotides
D
amino acids
12) The organelles associated with plant photosynthesis are the
A
golgi body
B
vacuoles
C
mitochondria
D
chloroplasts
13) Which of the following is an example of a prokaryotic cell?
A
liver cell
B
virus
C
bacterium
D
amoeba
14) One difference between prokaryotes and eukaryotes is that
A
prokaryotes do not have a nucleus
B
mitochondria are found in larger quantities in eukaryotes
C
golgi vessicles are found only in prokaryotes
D
nucleic acids are found in prokaryotes
15) Studying a picture of a cell, you can clearly see green plastids and a cell wall. You conclude that the cell is probably a(n)
A
animal
B
plant
C
prokaryote
D
now extinct organism
16) The packaging and distribution center of the cell is the
A
nucleus
B
golgi body
C
nuclear envelope
D
central vacuole
17) In a cell, protiens are made in the
A
cell membrane
B
ribosomes
C
nucleus
D
mitochondria
18) The cell membrane consists mainly of
A
carbohydrates and sugars
B
water and carbon dioxide
C
phospholipids and proteins
D
cellulose and pectins
19) The diffusion of water is also called
A
active transport
B
hydrolysis
C
hydrofusion
D
osmosis
20) How do cells move a material from an area of low concentration across a membrane inot an area of higher concentration?
A
facilitated diffusion, which does not require using energy
B
facilitated diffusion, which requries using energy
C
active transport, which requires using energy
D
active transport, which does not require using energy
*select an answer for all questions
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