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Biology
GCSE

Q: Give 2 advantages of using stents over CABG for coronary heart disease.

Less invasive, not as big an operation, therefore there is less risk involved.Shorter recovery time, and so patient spends less time in hospital.Could also be: Doesn't need to use general anaesthetic. Les...

Answered by Maria S. Biology tutor
2878 Views

Describe the process of diffusion with an example.

Diffusion is the moving of solutes from a region of higher solute concentration to a region of low solute concentration. It does not require energy so we say it is a “passive process” and it can occur it ...

Answered by Emmanouella X. Biology tutor
2067 Views

Describe the effect of temperature on enzyme activity.

Enzyme activity increases as temperature increases. This is because collisions between the substrate and the active site happen more frequently. At higher temperatures enzymes denature and are unable to c...

Answered by Nick B. Biology tutor
2777 Views

True or false - when you focus on a NEAR object, the lens becomes THINNER allowing light to reflect GREATLY.

false, the lens becomes thicker when focusing on near objects. This allows the light to be strongly refracted. The lens becomes thinner when focusing on objects that are further away.

Answered by Harriet H. Biology tutor
1838 Views

Identify two specific cell types found anywhere along the digestive tract

Epithelial Cells- line the lumen of small intestines and colon. they are Specialised in absorption of nutrients thanks to microvilli which increase surface areaGoblet Cells- Goblet cells are located in th...

Answered by Geeth A. Biology tutor
1904 Views

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