Introduction to Biology MCQs with Answers

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Welcome to the Introduction to Biology MCQs with Answers. In this post, we have shared Introduction to Biology Online Test for different competitive exams. Find practice Introduction to Biology Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Introduction to Biology.

Introduction to Biology Online Quiz

By presenting 3 options to choose from, Introduction to Biology Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of Introduction to Biology Questions and Answers and click over the correct answer.

Test Name: Introduction to Biology MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

Introduction to Biology

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1 / 40

What is the basic building block of proteins?

Nucleic acids

Fatty acids

Amino acids

2 / 40

What is the chemical symbol for gold?

3 / 40

What is the study of classification and naming of organisms?

Genetics

Ecology

Taxonomy

4 / 40

What is the chemical formula for water?

CO₂

O₂

H₂O

5 / 40

Which gas makes up the majority of Earth's atmosphere?

Nitrogen

Oxygen

Carbon dioxide

6 / 40

Which gas is responsible for the blue color of the sky?

Nitrogen

Oxygen

Ozone

7 / 40

Who is known as the father of modern genetics?

Louis Pasteur

Charles Darwin

Gregor Mendel

8 / 40

What is the largest organ in the human body?

Skin

Heart

Liver

9 / 40

What is the smallest bone in the human body?

Stapes

Femur

Tibia

10 / 40

What is the pH scale used to measure?

Temperature

Acidity or alkalinity

Pressure

11 / 40

What molecule stores genetic information in cells?

RNA

DNA

Protein

12 / 40

Which gas do plants absorb during photosynthesis?

Nitrogen

Oxygen

Carbon dioxide

13 / 40

What is the powerhouse of plant cells?

Chloroplast

Vacuole

Golgi apparatus

14 / 40

What is the process by which plants lose water to the atmosphere?

Evaporation

Respiration

Transpiration

15 / 40

What is the main function of the nervous system?

Transmit signals

Digestion

Circulation

16 / 40

What is the role of hemoglobin in the blood?

Fight infections

Transport oxygen

Clot blood

17 / 40

Which planet is known as the Red Planet?

Venus

Mars

Jupiter

18 / 40

What is the function of the mitochondria in a cell?

Storage of genetic material

Protein synthesis

Energy production

19 / 40

What is the purpose of the enzyme amylase?

Breaking down fats

Synthesis of proteins

Digestion of starch

20 / 40

What process allows plants to make their own food?

Respiration

Photosynthesis

Fermentation

21 / 40

In what phase of mitosis do the chromosomes align at the cell's equator?

Metaphase

Prophase

Anaphase

22 / 40

What is the function of the endoplasmic reticulum in a cell?

Energy production

Protein synthesis

Lipid synthesis

23 / 40

What is the basic unit of life?

Cell

Tissue

Organ

24 / 40

Which scientist proposed the theory of evolution by natural selection?

Gregor Mendel

Alfred Russel Wallace

Charles Darwin

25 / 40

What is the process by which an organism develops from a fertilized egg?

Development

Metamorphosis

Reproduction

26 / 40

What is the process by which cells break down glucose to release energy?

Fermentation

Photosynthesis

Cellular Respiration

27 / 40

What is the name of the process by which a cell divides into two identical daughter cells?

Meiosis

Binary Fission

Mitosis

28 / 40

Which gas do humans exhale during respiration?

Carbon dioxide

Oxygen

Nitrogen

29 / 40

Which gas is responsible for the greenhouse effect?

Carbon dioxide

Nitrous oxide

Methane

30 / 40

What is the function of the lens in the eye?

Produce tears

Detect color

Focus light

31 / 40

What is the purpose of the Krebs cycle in cellular respiration?

Break down glucose

Generate energy-rich molecules

Synthesize DNA

32 / 40

What is the largest ocean on Earth?

Pacific Ocean

Indian Ocean

Atlantic Ocean

33 / 40

Which part of the flower produces pollen?

Petal

Stigma

Anther

34 / 40

What is the primary function of the circulatory system?

Respiration

Digestion

Transport nutrients and oxygen

35 / 40

Which organelle is the powerhouse of the cell?

Endoplasmic Reticulum

Mitochondria

Nucleus

36 / 40

In what organelle does cellular respiration occur?

Chloroplast

Nucleus

Mitochondria

37 / 40

What is the purpose of the scientific method?

Guessing

Systematic investigation

Intuition

38 / 40

What is the role of white blood cells in the immune system?

Clot blood

Fight infections

Carry oxygen

39 / 40

What is the function of the ribosomes in a cell?

Energy production

Storage of genetic material

Protein synthesis

40 / 40

What is the role of the Golgi apparatus in a cell?

Energy production

Modify and package proteins

Synthesize DNA

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admin3 weeks ago

0 17 1 minute read