Answered: What do you mean by peritrophic…

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Biology

What do you mean by peritrophic membrane?

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter3: Cell Structure And Function

Section: Chapter Questions

Problem 18CTQ: Why is it advantageous for the cell membrane to be fluid in nature?

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Concept explainers

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

Question

What do you mean by peritrophic membrane?

Expert Solution

Step 1: Introduction

Class insecta comprises of insects and it contributes to 75 % of animal population. Insects have almost more than 1 million species population on earth.

They are characterised by exoskeleton, 3 pairs of legs, body division in 3 parts such as head, thorax and abdomen.

They have closed digestive system with long coil like structure called alimentary canal.

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