1. Which of the following is a benefit of the intermolecular hydrogen bonding of water?
(Select all that apply.)
A. Water has a relatively high specific heat value.
B. Water has strong cohesive and adhesive properties.
C. Polarity of water allows it to act as a versatile solvent.
D. Water moves from higher to lower concentrations.
2. Of all the molecules that are significant to biology, which of the following are considered the
most important?
A. Carbohydrates, lipids, protein, and nucleic acids
B. Carbohydrates, lipids, protein, and calcium
C. Carbohydrates, lipids, protein, and sulfur
D. Carbohydrates, lipids, protein, and iron
3. Lipids are better known as fats, but what are they specifically? (Select all that apply.)
A. Fatty acids
B. Phospholipids
C. Ketones
D. Steroids
4. What are the two categories of fatty acids?
A. Trans fat and saturated fats
B. Trans fat and unsaturated fats
C. Saturated fats and unsaturated fats
D. Saturated fats and polyunsaturated fats
5. How do phospholipids function in cells?
A. They are integral components of the nuclear membrane.
B. They are integral components of the cytoplasmic skeleton.
C. They are integral components of the mitochondrial membranes.
D. They are integral components of the plasma membrane.
6. What is the fundamental unit of biology?
A. Atom
, B. Cell
C. Tissue
D. Organ
7. Which type of cell contains no defined nucleus?
A. Prokaryotic cell
B. Eukaryotic cell
C. Animal cell
D. Protest cell
8. What is the primary purpose of the flagella on the surface of cells?
A. Movement of the cell
B. Removal of cellular waste
C. Replication of chromosomes
D. Production of energy
9. Which cell organelle functions to transport materials from the endoplasmic reticulum throughout
the cell?
A. Ribosome
B. Golgi apparatus
C. Lysosome
D. Vacuole
10. Which of the following are the distinct organelles that produce cell energy?
A. Mitochondrion and chloroplast
B. Mitochondrion and nucleus
C. Chloroplast and nucleus
D. Chloroplast and lysosome
11. How does meiosis differ from mitosis?
A. In meiosis, each of the daughter cells contains twice as many chromosomes as the parent.
B. In meiosis, each of the daughter cells contains half as many chromosomes as the parent.
C. In meiosis, each of the daughter cells is completely identical to the parent.
D. Meiotic division occurs in all body cells, whereas in mitosis the cells only divide in the gonads.
12. At which phase of meiosis does crossing over occur?
A. Prophase I
B. Prophase II
C. Metaphase I
D. Metaphase II
13. A cell division occurs in a human. The resulting cells contain 23 chromosomes. This is a description
of gametes formed by which process?
A. Mitosis
B. Binary fission