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Where does digestion of protein occur?

Digestion of protein starts in the stomach and does not occur in the buccal cavity (mouth). Acidic environment (low pH) due to HCL (hydrochloric acid) in the stomach allow for pepsinogen to be converted into...
MK
Answered by Michal K. • Biology tutor
2446 Views

Describe the 3 overall stages of the cell cycle and the processes ongoing during the cell's life.

The cell cycle is composed of 3 main stages: 1) Interphase During the interphase stage of the cell cycle, the cell grows and organelles such as mitochondria and ribosomes double. The DNA also multiplies to f...
YA
Answered by Yousif A. • Biology tutor
110150 Views

Why does blood flow to muscles increase during exercise?

Muscles require more energy during exercise. Additional oxygen and glucose are needed to release the energy. Blood flow increases to supply these to muscles faster. Respiration also increases to allow more o...
CW
Answered by Chloe W. • Biology tutor
23138 Views

Biology A-level: describing the action potential

At rest K+ that is going out of cell clamps the membrane potential negative (e.g. -70 mV)An external factor (e.g. synaptic activity) causes the membrane to depolarise slightly. If the voltage reaches thresho...
AM
Answered by Abubakar M. • Biology tutor
3881 Views

What is an autotroph?

An organism that produces its own food
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Answered by Will C. • Biology tutor
3756 Views