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Biology
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What components is blood made up of?

Blood is primarily used to transport cells and different substances around the body. It can be divided into 4 categories of components: the blood plasma, trombocytes (platelets), leukocutes (white blood c...

AG
Answered by Anatol G. Biology tutor
5624 Views

Describe the role of the loops of Henle in the process of concentrating urine.

The loop of Henle is made up first of a descending limb and then an ascending limb. The descending limb is permeable to both water and sodium and chloride ions, whereas the ascending limb is impermeable t...

HW
Answered by Harry W. Biology tutor
13740 Views

Bacteria can become resistant to antibiotics, how can doctors reduce the number of resistant bacteria? (2 marks)

This is a two mark question so we need two points. Firstly doctors should only prescribe antibiotics for a confirmed bacterial infection, antibiotics won't work on viruses and if given may allow commensal...

SR
Answered by Sophie R. Biology tutor
11047 Views

What is the Electron Transport Chain (ETC) and how does it help make ATP in cellular respiration?

Cellular Respiration is a three-step process. The Electron Transport Chain (ETC) is the final step of this process, generating majority of the ATP. The first two steps of Glycolysis and Citric Acid Cycle ...

NR
Answered by Nimra R. Biology tutor
11124 Views

Describe how filtration of the blood occurs at the Kidney

Due to the afferent arteriole going towards the glomerulus having a having a larger diameter than the efferent arteriole leaving the glomerulus the pressure increases in the glomerulus. This causes the s...

MS
Answered by Max S. Biology tutor
2924 Views

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