Tag: hormones

Quizzes (2) Questions (150)

Questions Related to hormones

Multiple choice biology control and coordination in living organisms enzymes and hormones hormones coordination in human beings- chemical control

ACTH controls the secretion of :

  1. epinephrine

  2. cortisol

  3. testosterone

  4. aldosterone
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

ACTH is secreted by adenohypophysis of the pituitary gland and controls the secretion of adrenal cortical hormone named as cortisol,

Effects of cortisol-
  • Antiinflammatory
  • Immuno-suppressive
  • RBC production
  • BMR regulation.

Multiple choice biology control and coordination in living organisms enzymes and hormones hormones coordination in human beings- chemical control

Low levels of adrenal cortex hormones result in :

  1. Addison disease

  2. Cushing syndrome

  3. tetany

  4. goiter
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Hyposecretion of adrenal cortex hormone (Cortisol) that is a glucocorticoid hormone results in the Addison disease.

Effects on the physiology of the body are as following-
  • Blood sodium (low)
  • Blood potassium(More)
  • Blood glucose(Low)
  • Blood pressure(Low) 

Multiple choice biology control and coordination in living organisms enzymes and hormones hormones coordination in human beings- chemical control

The primary target organ of aldosterone is :

  1. the kidney

  2. the pancreas

  3. the liver

  4. all of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Aldosterone is type of Mineralo-corticoid hormne, it affects the kidney in low GFR (glomerulation filtration rate) condition and maintain it.

The process for the working of aldosterone on kidney is as follows-
Blood $Na^{+}$ level increase $\rightarrow$ Water in blood(increase)$\rightarrow$ Blood volume(increase) $\rightarrow$ Blood pressure(increase)

Multiple choice biology control and coordination in living organisms enzymes and hormones hormones coordination in human beings- chemical control

Which of the following is a chemical messenger that produced in the body region but affect a different body region?

  1. Hormones

  2. Enzyes

  3. Endocrines

  4. Nucleic acids
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
A hormone is a class of molecules produced by glands in multicellular organisms, that are transported by the circulatory system to target distant organs to regulate physiology and behavior of that particular organ.
Example: Thyroxine, insulin etc
Multiple choice biology control and coordination in living organisms enzymes and hormones hormones coordination in human beings- chemical control

Hormones produced by the anterior pituitary that have a direct effect on the body, rather than trigger another gland, are :

  1. TSH, ACTH, and gonadotropic hormones

  2. FH, LSH and progesterone

  3. GH, prolactin, and MSH

  4. testosterone and estrogen
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

GH, prolactin and MSH are not the releasing or inhibitory factors, they have a direct effect on the body,

  • GH(growth hormone) also called as STH(somatotrophic hormone) induces the formation of IGF and sometomedian, these compounds induces the growth of bones and other organs
$GH/STH \overset{Induce}\rightarrow IGF+ Sometomedian\rightarrow growth$
  • Prolactin also called as lactotrophic hormones induces-
  1. Growth of mammary glands
  2. Synthesis of milk
  3. synthesis of antigonadotrophin
  • MSH(melanocyte stimulating hormone) is secreted from adenohypophysis and induce metachrosis( changing of color in amphibians).

Multiple choice biology control and coordination in living organisms enzymes and hormones hormones coordination in human beings- chemical control

GH promotes :

  1. bone growth

  2. cell division

  3. protein synthesis

  4. all of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Growth hormone is a 191-amino acid, single-chain polypeptide that is synthesized, stored and secreted by somatotropic cells within the lateral wings of the anterior pituitary gland. GH is a stress hormone that raises the concentration of glucose and free fatty acids.growth hormone promotes the growth of bones, muscles and various other organs, too much of it causes abnormal growth of all these tissues, a condition that is referred to as gigantism when it applies to children and acromegaly when it applies to adults. It synthesizes protein also.

Multiple choice biology control and coordination in living organisms enzymes and hormones hormones coordination in human beings- chemical control

Hormones are substances that fall into two basic categories:

  1. stimulator hormones and receptor hormones

  2. male hormones and female hormones

  3. non-steroid (peptide) hormones and steroid hormones

  4. inter-organ and inter-organismic
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hormones are a substance that falls into two basic categories which are non-steroid (peptide, insulin) hormones and steroid hormones (adrenaline, testosterone).