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General Biology Essentials

Biology

Test your foundational knowledge of essential biology concepts, human anatomy, and nature facts.

biology science nature human-body

10 Questions Easy Ages 5+ Sep 19, 2026

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About this Study Set

This study set covers Biology through 10 practice questions. Test your foundational knowledge of essential biology concepts, human anatomy, and nature facts. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 10 questions from the General Biology Essentials study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 Which cell organelle is commonly known as the 'powerhouse of the cell'?

A Nucleus
B Mitochondrion
C Ribosome
D Golgi apparatus

2 Which gas do plants release into the atmosphere as a product of photosynthesis?

A Carbon dioxide
B Nitrogen
C Oxygen
D Methane

3 What is the largest organ of the human body?

A Liver
B Brain
C Heart
D Skin

4 What term describes the double-spiral shape of a DNA molecule?

A Single spiral
B Double helix
C Triple strand
D Flat ring

5 Which protein in red blood cells is responsible for carrying oxygen throughout the body?

A Hemoglobin
B Insulin
C Keratin
D Collagen

6 Which of the following is a primary characteristic unique to mammals?

A They lay hard-shelled eggs
B They produce milk for their young
C They are cold-blooded
D They lack a backbone

7 To which biological kingdom do mushrooms belong?

A Plantae
B Animalia
C Fungi
D Protista

8 What is the primary function of white blood cells in the human body?

A Carrying oxygen
B Fighting infections
C Clotting blood
D Digesting carbohydrates

9 What is the name of the green pigment that plants use to absorb light during photosynthesis?

A Chlorophyll
B Carotene
C Melanin
D Anthocyanin

10 How many bones are in a typical adult human skeleton?

A 106
B 206
C 306
D 406

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