1. Lysosomes are a. the “sanitation” department b. the “factory” in a cell c. fo

Question

1. Lysosomes are

a. the “sanitation” department
b. the “factory” in a cell
c. found both in the cytoplasm and in the nucleus
d. composed of DNA and proteins
e. the “powerhouse” of the cell

2. DNA molécules contain
a. a ribose sugar
b. guanine, cytosine, adenine, and uracil
c. no phosphate group
d. phospholipids
e. none of the above are correct

3. Part of the sequence of chain #1 of a DNA molecule is –A-T-T-G-C-C-A. The sequence of the
a. complementary DNA Chain is –T-A-A-G-C-C-T
b. RNA produced by chain #1 is –U-A-A-C-G-G-U
c. Complementary DNA chain is –A-T-T-G-C-C-A
d. Complementary DNA chain is –U-A-A-C-G-G-U
e. MRNA produced by chain #1 is –T-A-A-C-G-G-T

4. Ribosomes are made of
a. protein
b. RNA
c. Histones
d. Both A and B
e. All of the above

5. High density lipoproteins:
a. transport about 75% of the circulating cholesterol
b. are the molecules that carry cholesterol out of the blood
c. are the bad form of cholesterol
d. contain 10% nucleic acid
e. are partially RNA

6. An illness that comes on suddenly and lasts for a relatively short time is
a. acute
b. chronic
c. non-infectious
d. both acute and chronic
e. considered treatable

7. A particular amino acid is specified by one or more
a. genes
b. nucleotides
c. codons
d. tRNAs
e. anticodons

Explanation / Answer

1) A 2) E 3) B 4) D 5) B 6) A

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