Top answers

Biology
GCSE

Which muscles in the gut wall are involved in peristalsis?

Circular muscles -  reduce the diameter of the gut when they contract

Longitudinal muscles - which reduce the length of the gut when they contract

The muscles work together ...

YC
3961 Views

Where is water absorbed in the digestive system? - Duodenum, Ileum or colon?

The answer is the colon (large intestine)

 The Duodenum is where food is mixed with digestive enzymes and bile. In the ileum, digested food is absorbed into the blood and lymph. Therefore...

YC
37615 Views

What is a gene?

A gene is a section of DNA (can explain DNA if necessary). Genes are responsible for making the different proteins that carry out different functions in our body.They can be inherited, passed on to fut...

ED
Answered by Ellie D. Biology tutor
4807 Views

What type of enzyme digests protein: amylase, lipase or protease?

The key to being able to answer this question is having good memory tricks in place.

In this case, connecting lipase with lipid in your mind will help you recall that lipases digest fats ...

MB
Answered by Molly B. Biology tutor
6014 Views

Describe how phospholipids are arranged in a plasma membrane?

Phospholipids are arranged in a bilayer (a double layer). They have hydrophobic tailss (made of fatty acids) and hydrophilic heads (made of a phosphate group). 

The hydrophilic heads are ...

IH
Answered by Isabelle H. Biology tutor
37210 Views

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