Biology Multiple-Choice Questions (MCQs) and Answers (Test). Quiz on Basic Biology for Test Preparation. The following Biology multiple-choice questions are drawn from the fundamentals of biology (plants and animals) as well as general knowledge (GK) in biology and life science.

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Created on April 01, 2022 By Preptestsonline

Biology MCQS Set 3

1 / 15

A series of hypothesis supported by the results of many tests is called ?

Scientific law

Theory

Data

Deduction

2 / 15

Which is an organic compound found in most cells ?

Water

Glucose

Oxygen

Sodium chloride

3 / 15

Biological sciences have a set methodology and it is based on 

Experimental inquiry

Esthetic preference

Philosophical ideas

Imaginations

4 / 15

Proteins are made from amino acids by the process of ______________?

Hydrolysis

Pinocytosis

Dehydration synthesis

Active transport

5 / 15

An unbroken series of species arranged in ancestors to descendent sequence with each later species having evolved from one that immediately preceded it is called?

Biome

Phyletic lineage

Community

Population

6 / 15

Sodium ions are “pumped” from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of

Diffusion

Passive transport

Osmosis

Active transport

7 / 15

It is possible to date the rocks by comparing the amount of specific radioactive isotopes they contain. Which of the statement is correct in this respect?

Older sediment layers have equal amount of these radioactive isotopes as that of the young ones

Older sediment layers have less amount of these radioactive isotopes as that of the young ones.

Older sediment layers have greater amount of these radioactive isotopes as that of the young ones.

Older sediment layers did not have these radioactive isotopes

8 / 15

Normally, in the process of osmosis, the net flow of water molecules into or out of the cell depends upon differences in the ?

Concentration of water molecules inside and outside the cell

Concentration of enzymes on either side of the cell membrane

Rate of molecular motion on either side of the cell membrane

None of these

9 / 15

The concept that various organisms dominated this planet during various geological time period and thus placing organisms in a time squence came from the studies by ?

Environmental biologist

Paleontologist

Marine biologist

Social biologist

10 / 15

Most cell membranes are composed principally of ?

DNA ad protein

Protein and Lipids

Protein and Chitin

Protein and RNA

11 / 15

A large regional community primarily determined by climate is called ?

Population

Community

Biome

Habitat

12 / 15

Which of the following pathogen type cause disease that can be treated with antibiotics ?

bacteria

fungi

virus

virus

13 / 15

Different species of plants and animals living in the same habitat is called?

Population

Community

Biome

Habitat

14 / 15

The evaporative cooling in the respiratory tract of dogs is called?

Vasodilation

Vasoconstriction

Panting

All of these

15 / 15

Group of living organisms of the same species living in the same place at the same time is called ?

Community

Population

Ecosystem

Biome

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