Auxotrohic bacteria plating on different medium, it is observed that colonies grow on minimal plus threonine only, no colony on minimal plus leucine and no colonies grow on minimal medium cystein only. What are the actual genotypes of auxotroph?

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#Question id: 16119

#Unit 7. System Physiology – Animal

Following statements are regarding to Shivering, which is the most potent mechanism for increasing heat production in the body. 

A. Cold environmental temperatures activate centers in the posterior hypothalamus during shivering, which then activate the α and γ motoneurons innervating skeletal muscle. 

B. Shivering involves skeletal muscle contracts rhythmically, generating heat and raising body temperature.

C. Shivering involves stimulation of Na+-K+ ATPase and raising body temperature.

D. Shivering involves stimulation of β receptors in brown fat, which increases metabolic rate and heat production.

Which of the following combination is correct?

TLS Online TPP Program

#Question id: 16117

#Unit 7. System Physiology – Animal

Thyroid hormones are thermogenic, their actions on target tissues result in heat production by following mechanisms:

i. stimulation of Na+-K+ ATPase

ii. increased O2 consumption

iii. increased metabolic rate

iv. increase in the number and activity of mitochondria

which of the following combinations are correct regarding heat production?

TLS Online TPP Program

#Question id: 11475

#Unit 7. System Physiology – Animal

Rods exposed to light will ________.

TLS Online TPP Program

#Question id: 11664

#Unit 7. System Physiology – Animal

Why are the renal artery and vein critical to the process of osmoregulation in vertebrates?

TLS Online TPP Program

#Question id: 11665

#Unit 7. System Physiology – Animal

Materials are returned to the blood from the filtrate by which of the following processes?

TLS Online TPP Program

#Question id: 11666

#Unit 7. System Physiology – Animal

The osmoregulatory process called secretion refers to the ________.