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- Biology
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  - Botany Plant Biology
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Exams & Certifications

Biology Quizzes, Questions & Answers

Recent Biology Quizzes

Understanding DNA and RNA in Protein Synthesis

Questions: 10 | Attempts: 11 | Last updated: Apr 20, 2026

Sample Question
What holds the original coded information for making proteins?

RNA

DNA

MRNA

TRNA

Understanding Homeostasis and Biological Systems

Questions: 29 | Attempts: 12 | Last updated: Apr 20, 2026

Sample Question
What is homeostasis?

The process of cell division

Maintaining stable internal conditions

The movement of substances across membranes

The production of hormones

Understanding Cellular Respiration and Photosynthesis

Questions: 14 | Attempts: 11 | Last updated: Apr 19, 2026

Sample Question
What is the main energy source that cells use for most of their work?

Glucose

ATP

Oxygen

Carbon Dioxide

Fungi Knowledge Quiz: Test Your Understanding

Questions: 25 | Attempts: 12 | Last updated: Apr 19, 2026

Sample Question
Which group of fungi is famous for making penicillin?

Basidiomycota

Zygomycota

Ascomycota

Glomeromycota

Photosynthesis Quiz: Understanding Plant Energy Conversion

Questions: 15 | Attempts: 13 | Last updated: Apr 18, 2026

Sample Question
What is the primary function of photosynthesis?

To produce carbon dioxide

To convert light energy into chemical energy

To absorb nutrients from the soil

To release oxygen into the atmosphere

Understanding the Nephron and Its Functions

Questions: 8 | Attempts: 22 | Last updated: Apr 18, 2026

Sample Question
What is the primary structural unit of the kidney?

Glomerulus

Nephron

Ureter

Renal pelvis

Understanding the Layers of the Epidermis and Cell Junctions

Questions: 10 | Attempts: 14 | Last updated: Apr 18, 2026

Sample Question
What layer is found directly below the epidermis?

Dermis

Hypodermis

Stratum corneum

Stratum basale

Advanced College-Level Biology Quiz on Enzymes and Metabolism

Questions: 20 | Attempts: 11 | Last updated: Apr 17, 2026

Sample Question
What are enzymes primarily made of?

Carbohydrates

Lipids

Proteins

Nucleic acids

AP Biology Style Quiz for High School Students

Questions: 19 | Attempts: 11 | Last updated: Apr 17, 2026

Sample Question
What is the basic unit of life?

Atom

Cell

Tissue

Organ

Understanding Proteins and Nucleic Acids in Biology

Questions: 10 | Attempts: 12 | Last updated: Apr 17, 2026

Sample Question
What does the Greek word 'proteios' mean?

First place

Second place

Third place

Last place

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