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Exams & Certifications

Biology Quizzes, Questions & Answers

Recent Biology Quizzes

Photosynthesis and Heterotrophic Nutrition

Questions: 8 | Attempts: 11 | Last updated: Jul 3, 2026

Sample Question
What is the process by which green plants prepare their food using sunlight called?

Heterotrophic nutrition

Photosynthesis

Saprophytic nutrition

Parasitic nutrition

Nutrition and Respiration in Life Processes

Questions: 8 | Attempts: 12 | Last updated: Jul 3, 2026

Sample Question
Which enzyme in saliva helps in the digestion of starch?

Pepsin

Amylase

Lipase

Trypsin

Cell Biology Fundamentals

Questions: 15 | Attempts: 11 | Last updated: Jul 1, 2026

Sample Question
What is the nickname given to the mitochondria because of its role in the cell?

The control center

The powerhouse

The factory

The gatekeeper

Cell Organelles and Photosynthesis

Questions: 8 | Attempts: 11 | Last updated: Jul 1, 2026

Sample Question
What is the nickname given to the mitochondria?

The control center

The powerhouse

The factory

The storage unit

Famous Personalities in the Field of Biology

Questions: 8 | Attempts: 12 | Last updated: Jul 1, 2026

Sample Question
Which of the following best describes the significance of Natural Philosophy in the history of science?

It was the first formal system of modern experimental science

It was the philosophical study of nature and the physical universe considered the precursor of natural science

It focused exclusively on the study of living organisms

It replaced modern science in the 18th century

Biology: Evolution, Ecology & Human Systems

Questions: 8 | Attempts: 11 | Last updated: Jun 29, 2026

Sample Question
Which of the following correctly describes a difference between photosynthesis and respiration?

Photosynthesis occurs in all living cells, while respiration occurs only in plant cells.

Photosynthesis is an anabolic process, while respiration is a catabolic process.

Photosynthesis releases carbon dioxide, while respiration releases oxygen.

Photosynthesis breaks down food molecules, while respiration builds them up.

Cell Biology and Energy Processes

Questions: 15 | Attempts: 11 | Last updated: Jun 28, 2026

Sample Question
What is the primary function of chloroplasts in a cell?

To regulate cell size and shape

To capture sunlight and produce food through photosynthesis

To store water and maintain cell pressure

To break down waste materials in the cell

Cell Biology ATP Photosynthesis and Respiration

Questions: 15 | Attempts: 11 | Last updated: Jun 28, 2026

Sample Question
Two cells in the same organism differ only in the number of chloroplasts they contain. The first cell has multiple chloroplasts, and the second cell has very few. What would most likely characterize these cells?

There would be no difference between the functioning of the cells because the chloroplasts are not essential cell structures.

The second cell would become larger because it would have fewer chloroplasts regulating its size and shape.

The second cell would shrink because it would not be able to store water and maintain cell shape.

The second cell would not be able to produce as much food because it could not capture very much sunlight.

Joints, Muscle Structure & Physiology

Questions: 8 | Attempts: 11 | Last updated: Jun 28, 2026

Sample Question
Which of the following factors most directly determines the range of motion at a synovial joint?

The shape of the articular surfaces and tension in surrounding ligaments

The thickness of the synovial membrane only

The number of bursae present near the joint

The density of the periosteum covering adjacent bones

Bioenergetics & Cellular Energy Systems

Questions: 20 | Attempts: 12 | Last updated: Jun 28, 2026

Sample Question
According to the second law of thermodynamics, why do cells require a constant input of energy?

To synthesize new DNA molecules

To counteract the natural increase in entropy and maintain cellular order

To facilitate passive diffusion across membranes

To convert ADP back into ATP without enzymatic activity

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