Cells And DNA Final Review: Question Preview (ID: 16804)

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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
Which of the following organic molecules are classifed as carboyhydrates?
a) amino acids b) fatty acids c) nucleotides d) sugars
DNA is important for cellular activities because DNA
a) is a structural component of cell membranes. b) codes for the production of proteins. c) is the major component of cytoplasm. d) increases the solubility of nutrients.
During transcription
a) RNA is produced. b) DNA is replicated. c) protiens are synthesized. d) translation occurs.
Which of the following organic molecules are most closely related to nucleic acids?
a) nucleotides b) amino acids c) fatty acids d) sugars
Each nucleotide triplet in mRNA that specifies a particular amino acid is called a(n)
a) anticodon b) mutagen c) codon d) exon
If the DNA code read ATCG, which choice below would be the sequence of an RNA strand that would bind with the DNA strand?
Which statement best explains the role of ribosomes in protein synthesis?
a) Ribosomes are the sites where DNA is transcribed into mRNA. b) Ribosomes carry mRNA to the cytoplasm where it is translated into DNA. c) Ribosomes are the sites where the message in the mRNA is translated into proteins. d) Ribosomes assemble chains of proteins from pieces of DNA in the nucleus.
What is the pathogen that causes AIDS?
a) protist b) bacteria c) virus d) eukaryote
How many codons are needed to specificy three amino acids?
a) 9 b) 12 c) 6 d) 3
Which of the following organic molecules are closely related to proteins?
a) fatty acids b) amino acids c) sugars d) nucleotides
The organelles associated with plant photosynthesis are the
a) golgi body b) mitochondria c) chloroplasts d) vacuoles
Which of the following is an example of a prokaryotic cell?
a) amoeba b) virus c) bacterium d) liver cell
One difference between prokaryotes and eukaryotes is that
a) mitochondria are found in larger quantities in eukaryotes b) golgi vessicles are found only in prokaryotes c) nucleic acids are found in prokaryotes d) prokaryotes do not have a nucleus
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) plant b) prokaryote c) now extinct organism d) animal
The packaging and distribution center of the cell is the
a) central vacuole b) nucleus c) golgi body d) nuclear envelope
In a cell, protiens are made in the
a) cell membrane b) mitochondria c) nucleus d) ribosomes
The cell membrane consists mainly of
a) carbohydrates and sugars b) water and carbon dioxide c) cellulose and pectins d) phospholipids and proteins
The diffusion of water is also called
a) active transport b) hydrofusion c) hydrolysis d) osmosis
How do cells move a material from an area of low concentration across a membrane inot an area of higher concentration?
a) active transport, which requires using energy b) facilitated diffusion, which does not require using energy c) active transport, which does not require using energy d) facilitated diffusion, which requries using energy
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