Life Sciences MCQs with Answers (FREE)
Life Sciences MCQs with Answers (FREE)
The following Life Sciences MCQs have been compiled by our experts through research, in order to test your knowledge of the subject of Life Sciences. We encourage you to answer these Life Sciences multiple-choice questions to assess your proficiency.
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1: What are abiotic factors?
A. Animals
B. Nonliving physical or chemical parts of an ecosystem
C. Plants
D. Microorganisms
2: What is active transport?
A. The process of filtering materials through a membrane
B. The process of moving materials to different locations
C. The process of using energy to move materials through a membrane
D. The process of breaking down materials into smaller molecules
3: What is addiction?
A. An uncontrollable urge to gamble
B. An addiction to unhealthy foods
C. A dependence on medicine
D. A physical or psychological need for a habit-forming substance, such as alcohol or drugs.
4: Adolescence is a stage of life from which age to adulthood?
A. 10 years old to 20 years old
B. Birth to 10 years old
C. 20 years old to 30 years old
D. Time a human body begins to mature sexually
5: A karyotype shows the __________ chromosomes sorted and isolated from a cell in __________.
A. 23; interphase
B. 23; metaphase
C. 46; prophase
D. 46; metaphase
E. 46; S phase
6: What are the basic building blocks of life?
A. Atoms
B. Molecules
C. Cells
D. Organs
7: Which of the following is not a major branch of life sciences?
A. Biology
B. Chemistry
C. Botany
D. Physics
8: The study of heredity and variation in living organisms is known as:
A. Physiology
B. Ecology
C. Genetics
D. Zoology
9: Which life science discipline is concerned with the study of the interactions between organisms and their environment?
A. Microbiology
B. Ecology
C. Anatomy
D. Paleontology
10: Which component of the cell is responsible for carrying genetic information?
A. Mitochondria
B. Ribosomes
C. Nucleus
D. Endoplasmic reticulum
11: What is the process by which green plants convert sunlight into chemical energy (glucose) to fuel their growth and development?
A. Photosynthesis
B. Respiration
C. Fermentation
D. Transpiration
12: Which of the following is a genetic disorder caused by an abnormality in the number of chromosomes, specifically having an extra copy of chromosome 21?
A. Down syndrome
B. Cystic fibrosis
C. Hemophilia
D. Huntington's disease
13: What is the study of the structure and function of tissues and organs in living organisms?
A. Physiology
B. Anatomy
C. Pathology
D. Pharmacology
14: The branch of life sciences that deals with the study of microorganisms, including bacteria and viruses, is called:
A. Zoology
B. Virology
C. Microbiology
D. Mycology
15: Which life science discipline is concerned with the study of the evolution, behavior, and classification of animals?
A. Botany
B. Ecology
C. Zoology
D. Entomology
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Life Sciences MCQs with Answers (FREE)
