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What is the Krebs cycle?

Photosynthesis has four stages: Glycolysis. The Link Reaction. 3. The Krebs Cycle. Oxidative Phosphorylation. Photosynthesis converts glucose from food into energy that the body can use called ATP. In the fi...
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Answered by Megan S. • Biology tutor
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Explain the process of evolution

Individuals within a population show a wide range of variation due to differences in their genes. The individuals within these species/populations with the characteristics most suited to their environment su...
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Answered by Seyi A. • Biology tutor
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Name the first stage of respiration. How many net ATP molecules are produced?

Glycolysis - 2 ATPs (net) are produced. 2 are input into the reaction and 4 are produced as a result.
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Answered by Lydia W. • Biology tutor
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What is an enzyme?

An enzyme is a biological catalyst. It is a protein with an active site that binds to a substrate to accelerate a chemical reaction.
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Answered by Epen T. • Biology tutor
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How does the body's response to a second infection by a bacterial pathogen differ from the first? (3 marks)

faster response due to the presence of memory cells there are many more cells specific for this pathogen therefore clonal selection and expansion of B cells is quicker - antibody production is quicker theref...
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Answered by Beth T. • Biology tutor
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