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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
bacteria
B
protist
C
eukaryote
D
virus
2) Which statement best explains the role of ribosomes in protein synthesis?
A
Ribosomes are the sites where the message in the mRNA is translated into proteins.
B
Ribosomes are the sites where DNA is transcribed into mRNA.
C
Ribosomes assemble chains of proteins from pieces of DNA in the nucleus.
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
UAGC
B
CGUT
C
TAGC
D
ATCG
4) Each nucleotide triplet in mRNA that specifies a particular amino acid is called a(n)
A
exon
B
codon
C
mutagen
D
anticodon
5) Which of the following organic molecules are most closely related to nucleic acids?
A
nucleotides
B
fatty acids
C
sugars
D
amino acids
6) During transcription
A
RNA is produced.
B
DNA is replicated.
C
translation occurs.
D
protiens are synthesized.
7) Which of the following organic molecules are classifed as carboyhydrates?
A
sugars
B
nucleotides
C
fatty acids
D
amino acids
8) DNA is important for cellular activities because DNA
A
codes for the production of proteins.
B
is the major component of cytoplasm.
C
is a structural component of cell membranes.
D
increases the solubility of nutrients.
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
CCTAGCT
B
AAGTATC
C
GGATCGA
D
TTGCATG
10) How many codons are needed to specificy three amino acids?
A
3
B
9
C
12
D
6
11) Which of the following organic molecules are closely related to proteins?
A
fatty acids
B
sugars
C
amino acids
D
nucleotides
12) The organelles associated with plant photosynthesis are the
A
golgi body
B
chloroplasts
C
mitochondria
D
vacuoles
13) Which of the following is an example of a prokaryotic cell?
A
virus
B
liver cell
C
bacterium
D
amoeba
14) One difference between prokaryotes and eukaryotes is that
A
golgi vessicles are found only in prokaryotes
B
nucleic acids are found in prokaryotes
C
prokaryotes do not have a nucleus
D
mitochondria are found in larger quantities in eukaryotes
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
prokaryote
C
plant
D
now extinct organism
16) The packaging and distribution center of the cell is the
A
central vacuole
B
nucleus
C
golgi body
D
nuclear envelope
17) In a cell, protiens are made in the
A
mitochondria
B
cell membrane
C
nucleus
D
ribosomes
18) The cell membrane consists mainly of
A
cellulose and pectins
B
carbohydrates and sugars
C
phospholipids and proteins
D
water and carbon dioxide
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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