Biology Practice Test

Try this free practice test to see how prepared you are for a biology exam. Whether you are in high school or college, you are likely to have a biology requirement. Biology tests often cover such subjects as physiology, morphology and reproduction of living organisms.


1. The net effect of photosynthesis, chemically, is reduction, leading to the formation of simple carbohydrates and accompanied by a release of oxygen.
2. A cell membrane is ______________?
3. A cell uses which of the following to accelerate chemical reactions enabling its metabolic machinery to operate?
4. Which of the following is not part of the metabolic sequence?
5. The major parts of a cell are the ______________?
6. Light initiates different types of cellular reactions. Which of the following responses to light converts the energy from light into a gain of potential energy?
7. The functional unit of heredity is the _____________.
8. DNA exists in the form of __________ strands of DNA coiled about each other.
9. Genes are located within the cytoplasm of the cell.
10. DNA functions in the transfer of information from nucleus to cytoplasm by way of _______________.
11. When sexual reproduction occurs in multicellular organisms, a process takes place before cells fuse whereby a cell is left with half of its chromosomes, enabling the creation of a cell with a charactteristic chromosome number. What is this process called?
12. Which of the following represents the largest group of biological classification?
13. There are two types of cells, eukaryotic and prokaryotic.
14. Cells contain which of the following to carry out specific functions like providing engergy and producing hormones?
15. All of the following are similarities between unicellular organisms and multicellular organisms, except _____________.
16. How many chromosomes does an individual human person have?
17. A multicellular organism is a colony of indepdendant cells.
18. Algea and fungi, without specialized organs such as leaves, stems and roots, are considered types of ________________.
19. One celled animals are of the phyla ______________.
20. The bodies of all insects have _______ major divisions.
21. Sterile female honey bees are called _________________.
22. The frog is a vertebrate.
23. Many animals protect themselves with an exoskeleton. Which of the following is not such an animal?
24. Locomotion in Metazoa is usually due to the contraction of what?
25. In normal sexual reproduction, two mature germ cells fuse to form a _____________.
26. In homo sapiens, the constitution of cells of the chromosome differs between the sexes, with females having two X chromosomes and males having one X chromosome and one Y chromosome.
27. Changes in the genetic constitution of an organism may be due to which of the following?
28. The phrase "survival of the fittest" is an alternate phrase expressing which of the following principles?
29. Which of the following directly (as opposed to indirectly) supports Charles Darwin's theory of evolution?
30. Hybridization of animals from different species cannot occur.