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Biology

What is the structure and function of a nerve cell?

The nervous system is made up of billions of cells called the nerve cells or the neurons. They are responsible for efficient communication within the organism,...

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Describe how information passes from a relay neurone to a motor neurone. (3 marks)

Information in the form of electrical impulses is the way in which the nervous system communicates. The neurones have a long axon that is insulated with myelin...

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"Explain how the structure of the mitochondria relates to its function"

Mitochondria are found in eukaryotes and are the site of respiration that releases large amounts of energy in the form of ATP. Firstly, the structure of mitocho...

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"Explain the flow of blood through the heart and label the diagram (of the heart and its chambers)"

The mammalian heart pumps blood around the body and to the lungs. It is the main component of the blood circulatory system and is divided into four main chamber...

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What is the Biuret test? How do I interpret the results?

For the identification of different biological molecules, different tests are performed. For example, for identifying reducing sugars, Benedict’s test can be pe...

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"How are chloroplasts adapted to their function?"

Photosynthesis is a process by which plants and other photoautotrophic organisms can synthesize carbohydrates (glucose) and oxygen using carbon dioxide from the...

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Can you explain to me the difference between diffusion, osmosis and active transport?

Diffusion is a passive process that does not require energy. It is the movement of molecules like gas or liquid from a region of a higher concentration to the r...

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What is artificial life?

Artificial or synthetic life is the creation of new life. However there are certain requirements to create a new life. First one being synthesizing a membrane t...

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What are some differences between RNA and DNA?

Human body is made up of multiple polymers such as carbohydrates, proteins and nucleic acids.There are two distinct types of nucleic acids DNA deoxyribonuc...

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