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Draw a diagram of a human cell, include; the Nucleus, the Golgi Apparatus, Lysosomes, Ribosomes and Mitochondria, annotating your diagram with the general functions of each component and of the cell membrane.

Nucleus: Contains the DNA/ Human genome in the form of chromosomes (with the help of histone proteins), within a nuclear membrane which is inpenetrable by cytosolic enzymes. Golgi Apparatus: Transport/ modif...
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Answered by Victoria T. • Biology tutor
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How do muscles contract and how is this controlled?

Skeletal muscle is composed of myofibrils. The myofibrils contain repeating units called sarcomeres. This also called the operational units. The sarcomeres contain actin filaments and myosin filaments. The a...
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Answered by Erika K. • Biology tutor
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Why is the left ventricle thicker than the right ventricle?

The right ventricle only pumps blood to the lungs, which are very near the heart. The left ventricle needs to pump blood to the eintire body, so the greater distance requires higher pressure to make sure the...
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Answered by Marie S. • Biology tutor
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Describe the process of photosynthesis and name three factors that may limit the rate of photosynthesis.

The overall equation for photosynthesis: Light energy Carbon dioxide + water -----> oxygen + glucose During the process of photosynthesis, carbon dioxide from the air and water from the soil is converted ...
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Answered by Amy G. • Biology tutor
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Explain what is meant by the term phenotype?

Expression of a genotype due to interaction with the environment
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Answered by Laura P. • Biology tutor
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