QCM : Fundamentals of Cell Biology and Evolution — 5 questions

Questions et réponses du QCM

1. What is a cell in biology?

A large organ that controls body functions in animals
A type of protein that forms the building blocks of tissues
The basic structural and functional unit of all living organisms
A microscopic structure that performs photosynthesis in plant cells

The basic structural and functional unit of all living organisms

Explication

A cell is defined as the basic structural and functional unit of all living organisms, which is essential for life processes. The other options describe specific structures or molecules but do not define what a cell is.

2. Who is known as the father of genetics?

James Watson
Charles Darwin
Gregor Mendel
Francis Crick

Gregor Mendel

Explication

Gregor Mendel is considered the father of genetics because he conducted pioneering experiments on inheritance using pea plants, establishing the fundamental principles of genetic inheritance.

3. What is the primary role or purpose of evolution in biology?

To create new species intentionally through genetic engineering
To explain how species adapt and diversify over time
To prevent species from changing over generations
To maintain genetic stability within populations

To explain how species adapt and diversify over time

Explication

The primary role of evolution is to explain how species change and adapt over time, leading to the diversity of life observed today. It is a natural process driven by mechanisms like natural selection and genetic variation, not an intentional creation or stabilization process.

4. When was William Harvey's discovery of blood circulation published?

1628
1590
1705
1750

1628

Explication

William Harvey's work on the circulation of blood was published in 1628, marking a significant milestone in human physiology by establishing how blood circulates through the body.

5. How do a food chain and a food web differ in ecological concepts?

A food chain involves only herbivores, whereas a food web includes both herbivores and carnivores.
A food chain is specific to aquatic ecosystems, whereas a food web applies only to terrestrial ecosystems.
A food chain is a simple, linear sequence of organisms through which energy flows, while a food web is a complex network of interconnected food chains.
A food chain shows energy transfer, but a food web only shows predator-prey relationships without energy flow.

A food chain is a simple, linear sequence of organisms through which energy flows, while a food web is a complex network of interconnected food chains.

Explication

A food chain is a simple, linear sequence illustrating energy transfer from producers to consumers, whereas a food web is a more complex network showing multiple interconnected food chains, reflecting the diversity of feeding relationships in an ecosystem.

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Cell — basic unit?

Fundamental structural and functional unit of life.

Prokaryotic cell — lacks?

Nucleus and membrane-bound organelles.

Eukaryotic cell — has?

Nucleus and membrane-bound organelles.

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