Physical properties of protoplasm, Biology

PHYSICAL PROPERTIES OF PROTOPLASM -

1.       Phase reversal - Due to difference in temperature outer part is gel and inner part of sol

2.       Tyndall effect - Being colloid, protoplasm exhibits "Tyndall effect" i.e. scattering of incident light rays. If colloid particles are large, Then white and if they are small then blue light is absorbed.

3.       Elasticity & Contractility - It is due to folding and unfolding nature of protein. Protoplasm can spread 25 times to its form.

4.       Surface Tension - Being a liquid mixture the protoplasm have a surface tension. Lipid and protein are having high surface tension, therefore, around cytoplasm plasmalemma is present made up of lipoprotein.

5.       Viscosity - 2 - 20 centipoises

6.       pH - 6 - 8

7.       Refractive index - 1.4

8.       Coagulation - Coagulate at 60ºC on reacting with acid and base.

Posted Date: 10/9/2012 2:34:57 AM | Location : United States







Related Discussions:- Physical properties of protoplasm, Assignment Help, Ask Question on Physical properties of protoplasm, Get Answer, Expert's Help, Physical properties of protoplasm Discussions

Write discussion on Physical properties of protoplasm
Your posts are moderated
Related Questions
Which of the following are eukaryotic? Bacteria protists fungi animals' archaea plants and animals only all of the choices are eukaryotic.

Q. Do echinoderms present external or internal fecundation? Is there sex division among individuals? The fecundation in echinoderms is external, gametes are liberated in water

Osmoregulatory Animal An osmoregulatory animal is generally in an osmotic steady state even though there may be hourly and daily variations in osmotic balance. The concentrati

Movement is even controlled by organelles, cilia and flagella. These and the pseudopodia in the amoebas give these small creatures movement, something we associate with animals. Es

Fire and Cookery : Fire and Cookery where and when fiie came to be used  is not known.  Fire, to start with, must have been a frightening thing, giving rise to many myths and l

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4

Bacteria never have a nucleus but some members of the domain Archaea are known to contain a true nucleus.

Eukaryotic cells have nucleus delimited by two juxtaposed membranes that start with the membrane of the endoplasmic reticulum. The nuclear membrane, or karyotheca, represents pores

Complete feed system in ruminants Complete feed system for feeding dairy animals is a departure from conventional individual rationing method. It involves the self-feeding of

Define Role of polyunsaturated fatty acids - Gene Expression? In contrast, polyunsaturated fatty acids (PUFA) inhibit G6PD in both intact animals and in primary hepatocytes in