BIO113 Unit 2 study guide – NOT COMPREHENSIVE – the comprehensive study guide is your notes.
1. Eukaryotic means:
a.
b.
c.
d.
The cell is human
The cell has a nucleus
The cell has DNA
The cell has a large surface to volume ratio
2. Which disease results in a lysosomal enzyme problem and fatty build up in cells?
a.
b.
c.
d.
Tay Sachs disease
Albinism
Sickle cell disease
Cystic fibrosis
3. Hydrophilic molecules:
a.
b.
c.
d.
do not mix with water
are composed of salts
are usually carbohydrates
are located on the outer and inner portions of the cell membrane
4. Apoptosis, or cell death, is associated with:
a.
b.
c.
d.
Mitochondria
Lysosomes
The lipid bilayer
ATP
5. The internal fluid-like portion of the cell is the:
a.
b.
c.
d.
cytoplasm
endoplasm
cellular blood
plasma
6. A gene is:
a.
b.
c.
d.
A coding region of DNA
A chromosome
Composed of amino acids
Located on the cell membrane
7. The cells of dogs contain 78 chromosomes. A dog sperm would contain:
a.
b.
c.
d.
39 chromosomes
78 total chromosomes
156 homologous chromosomes
18 chromosomes
8. The notation "HH"always refers to an individual who is
a. homozygous recessive
b. abnormal
c. heterozygous
d. homozygous dominant
9. Pleiotropy occurs when:
a.
b.
c.
d.
A single gene mutation has many effects on an organism.
A trait is influenced by many genes
The environment affects the expression of a gene
A baby is born with an extra chromosome in each cell
10. A person who exhibits 2 copies of chromosome X and one of chromosome Y is
a. female
b. female and male
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c. male
d. not possible
11. It is possible to take one cell from an embryo and test it:
a. True
b. False
12. A woman with genotype XHXH:
a.
b.
c.
d.
Has hemophilia
Is known as a carrier of hemophilia
Cannot have a child with hemophilia
Is heterozygous for hemophilia
13. Fill in either: cell membrane, mitochondria, lysosome, DNA for each of the following
Found in the nucleus of eukaryotic cells
Contains digestive enzymes
Composed of a lipid bilayer
Determines what enters/exits the cell
Involved in Tay Sachs disease
Encodes proteins
Genetic material
Hydrophobic inner portion
Involved in apoptosis
Thousands in active tissues such as muscle
Makes ATP (chemical energy)
Composes chromosomes
Contains receptors, transporters, and channels
A fluid mosaic
Involved in cystic fibrosis
Located in the cytoplasm (choose 2)
14. Pick one of these to fill in the following: Eukaryotic Prokaryotic Both
Human cell
Bacterial cell
Nucleus
Cell membrane
DNA
Sperm cell
15. What is the correct number for each of the following?
Chromosomes in a sperm
Chromosomes in a brain cell
Chromosomes in a fertilized egg
Chromosomes in Down syndrome
Cells in a fertilized egg
Cells in an embryo that undergoes testing
Autosomes in a human
Sex chromosome pairs in a human
16. What do each of these refer to?
46, XX
47, XY, +21
47, XXY (male or female?)
48, XXXY (male or female?)
45 X (male or female?)
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