Biology Homework Help

Biology Students
Students in Biology Class. Corbis/VCG/Getty Images


Key Takeaways

  • Biology homework and assignments can be difficult to understand. Always make sure to avail yourself of all available resources so that you can succeed.
  • Understanding key biological concepts like cell processes, DNA, and genetics are helpful in understanding some of the foundations of biology.
  • Use sample biology quizzes and online resources to test your grasp of biology concepts.

Biology Homework Help Resources

Anatomy of the Heart

Animal Tissues
Information on the structure and function of animal tissue types.

Bio-Word Dissections
Learn how to "dissect" difficult biology words so that they are easy to understand.

Brain Basics

Characteristics of Life
What are the basic characteristics of life?

Biology exams can seem intimidating and overwhelming. The key to overcoming these obstacles is preparation. Learn how to do well on your biology test.

Organ Systems

The Magic of Photosynthesis


Eukaryotic and Prokaryotic Cells

Cellular Respiration
Cellular respiration is the process by which cells harvest the energy stored in food.

Differences Between Plant and Animal Cells
Plant and animal cells are similar in that both are eukaryotic cells. However, there are several important differences between these two cell types.

Prokaryotic Cells
Prokaryotes are single-celled organisms that are the earliest and most primitive forms of life on earth. Prokaryotes include bacteria and archaeans.

The body contains trillions of cells that come in varying shapes and sizes. Explore some of the different types of cells in the body.

7 Differences Between Mitosis and Meiosis
Cells divide either through the process of mitosis or meiosis. Sex cells are produced through meiosis, while all other body cell types are produced through mitosis.

DNA Processes

Steps of DNA Replication
DNA replication is the process of copying the DNA within our cells. This process involves RNA and several enzymes, including DNA polymerase and primase.

How Does DNA Transcription Work?
DNA transcription is a process that involves the transcribing of genetic information from DNA to RNA. Genes are transcribed in order to produce proteins.

Translation and Protein Synthesis


Genetics Guide
Genetics is the study of inheritance or heredity. This guide helps you to understand basic genetics principles.

Why We Look Like Our Parents
Have you ever wondered why you have the same eye color as your parent? Traits are inherited by the transmission of genes from parents to their young.

What Is Polygenic Inheritance?
Polygenic inheritance is the inheritance of traits such as skin color, eye color and hair color, that are determined by more than one gene.

How Gene Mutation Occurs

What Traits Are Determined by Your Sex Chromosomes?
Sex-linked traits originate from genes found on sex chromosomes. Hemophilia is an example of a common sex-linked disorder that is an X-linked recessive trait.


Cellular Respiration Quiz
Cellular respiration allows cells to harvest the energy in the foods we eat. Test your knowledge of cellular respiration by taking this quiz!

Genetics and Heredity Quiz
Do you know the difference between codominance and incomplete dominance? Test your knowledge of genetics by taking the Genetics and Heredity Quiz!

How Much Do You Know About Mitosis?
In mitosis, the nucleus from a cell is divided equally between two cells. Test your knowledge of mitosis and cell division by taking the Mitosis Quiz!

Getting Additional Help

The above information provides a basic foundation for various biology topics. If you find that you still have problems understanding the material, don't be afraid to request assistance from an instructor or tutor. They can help clarify concepts so that you can gain a deeper understanding of biological concepts.