Chemistry Of Life Quiz 3
This quiz will help you check your understanding of vocabulary and concepts needed for Unit 2 of the MCPS Biology course.
- 1.Which of the following is NOT a good source for carbohydrates?
- A.
Olive oil
- B.
Spaghetti
- C.
Cereal
- D.
Banana
- 2.Which group contains ONLY monomers?
- A.
carbohydrates, proteins, nucleic acids
- B.
Cereal, table sugar, cellulose
- C.
monosaccharide, amino acid, nucleiotide
- D.
Carbon, hydrogen, oxygen, nitrogen
- 3.Which element, found in proteins, is NOT present in carbohydrates or lipids?
- A.
Carbon
- B.
Hydrogen
- C.
Oxygen
- D.
Nitrogen
- 4.What statement about proteins, lipids, nucleic acids, and carbohydrates is NOT true?
- A.
They are all organic.
- B.
They all contain carbon.
- C.
They all contain nitrogen.
- D.
They are found in living things.
- 5.Which of the following is a major component of cell membranes?
- A.
Carbohydrate
- B.
Lipids
- C.
Proteins
- 6.Starch belongs to which group of macromolecules?
- A.
Protein
- B.
Vitamin
- C.
Carbohydrate
- 7.Animals use _________ for long-term energy storage.
- A.
Lipids
- B.
Carbohydrates
- C.
Proteins
- 8.Which of the following is an example of a nucleic acid?
- A.
Amino acid
- B.
Phosphate
- C.
DNA
- 9.Which of the following is an example of a nucleic acid?
- A.
Amino acid
- B.
Phosphate
- C.
DNA
- 10.Water is used as a control in experiments to test for the presence of various organic compounds. The reason for this is that ________________.
- A.
Water is inexpensive and therefore it is easy to use
- B.
Water is an excellent solvent and soak up all of the chemicals that are used.
- C.
Water is NOT an organic molecule and therefore it is good to use for comparison.
- 11.DNA and RNA are examples of __________.
- A.
Polysaccharides
- B.
Amino acids
- C.
Proteins
- D.
Nucleic acids
- 12.If the left side of the beaker were hypertonic compared to the right side, what would happen to the level of water on both sides?
- A.
The left side would go up and the right side would go down.
- B.
The right side would go up and the left side would go down.
- C.
The level of water on both sides of the beaker would stay the same.
- 13.If the concentration of solute is the same both inside a cell and in the solution it's placed into, then the solution is said to be _____________.
- A.
Hypertonic
- B.
Hypotonic
- C.
Isotonic
- 14.A fish that is accustomed to living in salt water is placed in fresh water. What do you predict might happen to the cells of the fish?
- A.
They might shrink up and cause the fish to die.
- B.
They would become healthier because the water is so fresh.
- C.
They might burst and cause the fish to die.
- 15.A piece of potato is placed in pure water. The potato cells are not 100% water. Relative to the potato cells, the pure water is ___________.
- A.
Isotonic
- B.
Hypertonic
- C.
Hypotonic
- 16.A cell is placed in a hypertonic solution. This means that the percentage of water is ___.
- A.
Greater in the solution.
- B.
Greater in the cell
- C.
The same in the cell and the solution.
- 17.A cell that is 95% water is placed inside a solution that is 100% water. What will happen?
- A.
The cell will swell because water will enter it.
- B.
The cell will swell because it will produce more sugar.
- C.
The cell will shrink because it has less water than the solution.
- 18.The process in which energy is released for use by the cell is called ______. (Be careful!!)
- A.
The mitochondrion
- B.
Respiration
- C.
The chloroplast
- D.
Photosynthesis
- 19.The cell wall of a plant is composed mainly of ____________.
- A.
DNA
- B.
A carbohydrate
- C.
A thin layer of phospholipid molecules
- D.
Nucleic acids
- 20.The carbohydrate which make up the cell wall is mainly _______.
- A.
Cellulose
- B.
Glucose
- C.
Fructose
- D.
Disaccharide
Questions: 15 | Attempts: 194326 | Last updated: Mar 22, 2022
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