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
define heart?

Given how the Na+/K+ pump works, which part of the cell (inside or outside) will have an excess of negative charge?

what chemical is normally used to test for the presence of carbon dioxide

Q. Is Acetylcholine used in consciousness? Cholinergic mechanisms are important in wakefulness and cortical activation. In general, increased acetylcholine is associated with w

Others Factors Affecting Occupational Health The list of factors which affect the occupational health and that need standard organising, scrutiny, inspection, surveillance and

Nerve to Mylohyoid Motor branch of inferior dental nerve which descends in a groove on the medial surface of the mandibular ramus. Surgical intervention in this area may lead

Barbiturate, Sedative, Hypnotic or Anxiolytic Intoxication and Withdrawal: This Emergencies related  to  substance abuse may be acute  or chronic. The patient may come  to  th

what we the strengths and weaknesses of pangenesis theory

Segmentation - Metazoa Segmentation or metamerism is the division of the body into smaller transverse compartments along the anterior-posterior axis. Segmentation is widesprea

Part of the endocrine system in humans, these 2 glands are small bodies located at upper end of every kidney. While these glands perform a range of functions, two of the most signi