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Explain how 2 different types of mutations in a gene can result in the loss of an enzyme's function

The primary structure of a protein is determined by the sequence of amino acids in the polypeptide chain. This amino acid sequence is directly coded for by the sequence of codons in the mRNA. As the mRNA is ...
AW
Answered by Alexander W. • Biology tutor
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Explain the electron transport chain and chemiosmosis

Reduced NAD carries H+ and electrons to the transport chain on the inner mitochondrial membrane allow the electron to move along the carriers in a series of redox reactions. H+ then move across the membrane ...
SA
Answered by Samiul A. • Biology tutor
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What is the effect of temperature on enzyme activity?

As temperature increases, the enzyme activity increases since the particles have more kinetic energy and collide more frequently; with a greater proportion of the collisions being successful and more enzyme-...
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Answered by Yasmin T. • Biology tutor
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How are action potentials transmitted across synapses using neurotransmitters such as acetylecholine?

Action potential causes depolarisation of the pre-synaptic membrane. Opens voltage gated Ca 2+ and Ca 2+ floods in to the pre-synaptic knob. Ca 2+ binds vesicles containing acetylcholine to microtubules. The...
QH
Answered by Quinn H. • Biology tutor
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Where are the Alpha and Beta cells of the Pancreas located and what are their functions in relation to blood glucose homeostasis?

Alpha and Beta cells are the two key cells used in blood glucose regulation in the body.Location = Islets of Langerhans (which are groups of cells located predominantly inside the tail of the pancreas)Beta c...
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Answered by Josh B. • Biology tutor
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