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Compare and contrast eukaryotic and prokaryotic cells.

Tip: when answering ‘compare and contrast’ questions, use keywords such as ‘whereas’, ‘in contrast to’, ‘similarly’ and ‘comparatively’.Eukaryotic cells are plant and animals cells, whereas prokaryotic cells...
EP
Answered by Ellie P. • Biology tutor
4667 Views

Explain the process of phagocytosis

Phagocytes detects pathogen due to chemical produced by the pathogen. The phagocyte move via a concentration gradient to the pathogen. The phagocyte engulfs the pathogen thereby producing a phagosome where t...
SC
Answered by Sam C. • Biology tutor
9160 Views

evaluate some different treatments for cardiovascular disease (6)

LIFESTYLE examples of lifestyle treatment Lower blood cholesterol by cutting down on fatty foods.Stop smoking and other recreational drugs - They can affect heart rate and blood pressure, increasing the risk...
MD
Answered by Melissa D. • Biology tutor
2676 Views

How can the use of antibiotics contribute to bacteria becoming resistant?

Bacterial DNA can spontaneously mutate, which means a change in the nucleotide reading frame. By chance, a mutation may cause the bacteria to prevent being killed by the antibiotic. For example, by developin...
CW
Answered by Carolina W. • Biology tutor
3025 Views

Explain the lock and key hypothesis of chemical reactions.

The lock and key hypothesis explains how each enzyme acts specifically on a certain substrate. The lock is the enzyme. The key is the substrate. The lock has a site where a specific substrate binds called th...
CH
Answered by Charlotte H. • Biology tutor
3595 Views