Sample Questions: Biology

The following Biology sample questions aren't used in actual CLEP exams and aren’t presented here as they will be on the test. Use them to get a sense of question format and difficulty level.

Directions

Each of the questions or incomplete statements below is followed by five suggested answers or completions. Select the one that is best in each case.

Questions

1. Chromosomes are located in a nucleus in which of the following?

   1. Viruses
   2. Prokaryotes
   3. Eukaryotes

    

   1. It is the primary hydrogen acceptor in glycolysis
   2. It is the storage form of starch in plants
   3. It enables transpiration in woody plants
   4. It provides nutrients to cells by circulating through the vascular tissue
   5. It absorbs light to energize electrons
2. Meiosis of a diploid cell results in
   1. one tetraploid cell
   2. two diploid cells only
   3. two haploid cells only
   4. four haploid cells
   5. two diploid and two haploid cells
3. Neurotransmitters contained in vesicles enter the synapse through
   1. binary fission
   2. translocation
   3. diffusion
   4. exocytosis
   5. endocytosis
4. Researchers find that a newly discovered organism is unicellular, prokaryotic, and able to live at extremely high temperatures. The organism is best classified as a member of which of the following groups?
   1. Bryophyta
   2. Amphibia
   3. Archaea
   4. Fungi
   5. Reptilia

5. Which of the following best describes the primary function of chlorophyll in an organism?

   1. It is the primary hydrogen acceptor in glycolysis.
   2. It is the storage form of starch in plants.
   3. It enables transpiration in woody plants.
   4. It provides nutrients to cells by circulating through the vascular tissue.
   5. It absorbs light to energize electrons.

   Questions 6–7

   Students in a biology class designed an experiment to measure the effects of the environment on transpiration. The data are shown in the table below.

   Effects of Environmental Conditions on Transpiration

   Environmental Condition	Water Loss (mL/m²/hr)
   Standard room conditions	4
   Bright light	6
   Wind	8
   Misting around plant	2
   Polluted environment	3

6. Which of the conditions served as the control?
   1. Standard room conditions
   2. Bright light
   3. Wind
   4. Misting around plant
   5. Polluted environment
7. Based on the results of the experiment, water movement through plants occurs most rapidly under which of the following conditions?
   1. A cloudy day
   2. A bright light
   3. A room-temperature environment
   4. A humid environment
   5. A breezy environment
8. Hormones secreted by the pancreas most directly affect which of the following?
   1. Water retention
   2. Ovulation
   3. Glucose regulation
   4. Blood circulation
   5. Muscular coordination
9. Which of the following kinds of organisms are best adapted to habitats that are frequently subject to unpredictable and severe environmental fluctuations?
   1. Organisms with very specific diets
   2. Ectothermic organisms
   3. Top predators
   4. Keystone species
   5. r-selected organisms

Answers

1) C   2) D   3) D   4) C   5) E   6) A   7) E   8) C   9) E