7) The lipid that stabilizes the membrane at extreme temperatures and is found i

Question

7) The lipid that stabilizes the membrane at extreme temperatures and is found in the 7) hydrophobic regions of the bilayer is A) the polar head. B) glycolipid. C) glycocalyx. D) the nonpolar tails. E) cholesterol. 8) The system responsible for the exchange of gases between the blood and atmospheric ) air is thesystem. A) respiratory B) nervous C) urinary D) cardiovascular E) endocrine 9) Which system is responsible for providing protection, regulating body temperature, and 9) being the site of cutaneous receptors? B) Urinary C) Integumentary D) Respiratory E) Nervous 10) 10) Which of the following serve to increase the surface area of a cell for absorption and secretion? A) Flagella

Explanation / Answer

QUESTION 7

ANSWER-7

e) Cholesterol

beacause Cholesterol only helps in the closed packaging of phospholipids filling the gap between them at high temperature. At lower temperature, the tail of the phospholipids becomes short and unsaturated so the cholesterol concentration is reduced to maintain membrane fluidity.

Question-8

Answer-8

a) respiratory Because respiration is the process in which exchange of gaseous take place between the atmosphere,blood and body tissue cells.

There are four process are involved in respiration:-

1) Pulmonary ventilation: movement of air into and out of the lungs

2) External respiration: exchange of gases between air sacs or alveoli of the lungs and blood

3) Transport of respiratory gases : oxygen and co2 transported to & from the lungs & body tissue cells by the blood

4) Internal respiration: exchange of gases between the blood and body tissue cells

Question-9

Answer-9

c) Integumentary

The integumentary consists of skin, hair, nails, glands, and nerves.

Major function of integumentary is :-

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