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Biology

State whether arteries carry blood towards or away from the heart and then give two features of arteries relating to this role

There are 3 major types of blood vessels

  • Arteries
  • Veins
  • Capillaries 
Arteries are those blood vessels that are responsible...

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What does the hormone insulin do?

Insulin is a hormone that is protein in nature. It consists of two polypeptide chains. It is produced from pancreas that is both exocrine and endocrine gland.&n...

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Explain the process of osmosis and give an example of where this occurs

Osmosis is the movement of water molecules from the region of high water potential to low water potential through partially permeable membranes.High water poten...

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Evaluate the pros and cons of breastfeeding.

Breastfeeding is the best way to provide immunity to the child as antibodies are directly transferred from mother to baby; this is something that cannot be prov...

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What are the three components required for photosynthesis?

Photosynthesis is the process during which plants make their own food from inorganic material. Its equation is given as

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How are red blood cells adapted for transport of oxygen?

Red blood cells are specialized cells that have many adaptations which help them to transport oxygen efficiently in the body.1.     Firstly, red blood...

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Describe 2 ways the body prevents the entry of microorganisms.

The body has two types of defence mechanisms that protect it from the entry and then invasion of pathogens and microorganisms. The first line of defence prevent...

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Draw a labelled diagram of an animal cell and a plant cell. Give a function for each item named.

 Animal cell:Labelled Diagram of an Animal CellAnimal cell is a eukaryotic cell and it has no cell wall, chloroplast, or a large vacuole. Instead, the anim...

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What are myelin sheaths?

The neurons are specialized cells that can transmit the information in the form of electrical impulses. The neurons have long axons that are fibres and these im...

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What is the genome and what does it do?

A genome contains the complete set of genetic information of the organism. It also has key instructions that would help an organism to grow and develop in diffe...

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