Explain physical barrier for external defence mechanism-skin, Science

Assignment Help:

Explain physical barrier for External Defence Mechanism - Skin

It provides nice protective covering to the body.  The outer layer- horny layer - contains dead keratinized cells. These cells have hard insoluble fibrous proteins called keratin, instead of soft protoplasm. This layer is water proof and germ proof. It can prevent entry of virus and bacteria.


Related Discussions:- Explain physical barrier for external defence mechanism-skin

Explain saponification, Saponification :- Fats when  boiled with  alcoh...

Saponification :- Fats when  boiled with  alcoholic solution of NaOH or KOH undergo hydrolysis into glycerol  and  fatty acids  and  the  latter  form  soaps with Na or K. The

Explain the metabolic activities of the kidney, Explain the Metabolic activ...

Explain the Metabolic activities of the kidney For synthesis of creatine, three amino acids glycine, arginine and methionine are involved directly. The first reaction is to for

#title, lable the direction of increasing frequency and the direction of in...

lable the direction of increasing frequency and the direction of increasing wavelength on the em.

Define the both macronutrient and micronutrient, Define the both macronutri...

Define the both macronutrientand micronutrient. An element necessary in large amounts (usually > 50 mg/kg in the plant) for the growth of plant is called a macronutrient and in

Explain the composition of bile, Explain the Composition of Bile Bile i...

Explain the Composition of Bile Bile is a complex fluid. It is yellowish green in colour and bitter in taste. It consists of: Water Mineral salts (chloride, potassium

To show how soil is formed from rocks, To show how soil is formed from rock...

To show how soil is formed from rocks Carefully heat a piece of glass in a flame and then plunge it into cold water. The unexpected cooling of the glass causes it to contract u

Define erythroblastosis fetalis, Define Erythroblastosis Fetalis Beside...

Define Erythroblastosis Fetalis Besides the risk of a mismatch reaction during a second or during any subsequent  blood transfusion, giving Rh-positive, blood involves  risk in

Explain the role of secretin, Explain the Role of secretin Secretin is ...

Explain the Role of secretin Secretin is a polypeptide containing 27 amino acids. It is present in the mucosa of the upper small intestine in an inactive form prosecretin. When

Protozoan, what is the scientific classification of a protozoan

what is the scientific classification of a protozoan

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd