Physical properties of protoplasm, Biology


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
Subphylum Chelicerata. Six pairs of appendages, four pairs being legs, with paired chelicerae (fangs). There are three classes in this phylum.

Centrioles Centrioles is also called cell centre . Centrosome discovered by Benden . T. Boveri called it centrosome. Centrosome is present in all animal eukaryotic

What are the anatomical relationships between the organs of the female reproductive system from the external vulva to the ovaries? The external female genitalia is called the v

Botulism Botulism is a rapidly fatal motor paralysis. It is caused by ingestion of toxin of Clostridium botulinum in food. Many species of domesticated, wild animals and birds

Quantitative Characters - Population Density Density denotes the average number of individuals of a particular species in a unit area. In other words, it represents the numeri

Describe how to Analysis and Evaluation of JVP ? 1) Elevated: Any cause producing right ventricular, failure or in pericardial effusion and in constrictive pericardiitis when p

Q. What is meant by "mutualist exploration of cellulose digestion", a phenomenon that occurs in some mammals and insects? Herbivorous animals eat great amounts of cellulose a s

Define Microscopical Examination of Starch Granules? Take a slide and make a thin film of a suspension of starch granules from different sources and examine under a microscope.

Creb binding protein (CBP) is a histone acetyl transferase (HAT) protein. What role does the  addition of acetyl groups to histones play during development? A. The addition of

Which of the following serves as a sensor, or as part of a sensor, that functions in a negative feedback system? A. CaSRs (Calcium-Sensing Receptors) located in the plasma memb