Biotic potential / Intrinsic rate of natural increase (r) It is the inherent power of a population to grow and reproduce when environmental conditions are favorable, and resources are unlimited. 

TLS Online TPP Program

#Id: 1263

#Unit 7. System Physiology – Animal

The innermost zone of the cortex, zona reticularis, and the middle zone, zona fasciculata, synthesize and secrete glucocorticoids and adrenal androgens. 

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#Id: 1264

#Unit 7. System Physiology – Animal

The outermost zone, called the zona glomerulosa, secretes mineralocorticoids.

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#Id: 1265

#Unit 7. System Physiology – Animal

The conversion of cholesterol to pregnenolone, catalyzed by cholesterol desmolase, in mitochondria.

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#Id: 1266

#Unit 7. System Physiology – Animal

Zona glomerulosa cells capable of secreting significant amounts of aldosterone because they contain the enzyme aldosterone synthase.

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#Id: 1267

#Unit 7. System Physiology – Animal

Zona glomerulosa lacks 17α-hydroxylase. 

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#Id: 1268

#Unit 7. System Physiology – Animal

The synthesis and secretion of steroid hormones by the adrenal cortex depend on the stimulation of cholesterol desmolase by ACTH.