100% Correct Answers
18. A cell is placed in a hypertonic solution. Which of the following describes the resulting
osmosis?
A) There is a net flow of water into the cell
B) The net flow of water into and out of the cell is zero .
C) There is no flow of water.
D) There is a net flow of water out of the cell. ✔️✔️D) There is a net flow of water out of the
cell.
19. Which of the following elements has the smallest atomic radius?
A) Si
B) C
C) Ge
D) Sn ✔️✔️B) C
20. An efficient way to block protein synthesis is by inhibiting which of the following?
A) Ribosomes
B) Glyoxysomes
C) Apoplasts
D) Lysosomes ✔️✔️A) Ribosomes
, 21. A student conducts an experiment in which he dissolves 1.0 grams () each of several
substances in 50 millimeters (mL) of water. He has 12 identical plastic cups of water. He places
1.0 g of salt into three of the cups,1.0 g of sugar into three of the cups, and 1.0 g of baking soda
into three of the cups. The three remaining cups contain only water. He places all the cups in a
freezer and records the temperature of the water in each cup every 15 minutes for 4 hours .
Which of the following questions is the student most likely investigating?
A) How does the volume of water affect the rate at which it cools ?
B) What effect does cooling have on the solubility of different solutes ?
C) How is the cooling rate of water affected by different solutes ?
D) What effect do different concentrations of solute have on the freezing point of water ?
✔️✔️C) How is the cooling rate of water affected by different solutes ?
22. In a plant in which fuzzy leaves (F) are dominant smooth leaves (f), which of
following crosses will produce only offspring with smooth leaves?
A) FF X FF
B) Ff X Ff
C) ff X ff
D) Ff X ff ✔️✔️C) ff X ff
23. Which of the following is a function of the circulatory system?
A) To manufacture antibodies