In laboratory settings, what cellular effect is associated with alloxan that can lead to a disease impacting blood sugar regulation?
Trả lời
(B)
Cell death of the cells producing a specific hormone
2
What is a treatment option for asthma that can provide relief?
Trả lời
(B)
PGE, and PGE2
3
What is the initial building block for the hormone thyroxine?
Trả lời
(A)
Tyrosine
4
Which condition is characterized by a limited response from the adrenal cortex?
Trả lời
(A)
Kwashiorkor
5
What is the typical range for protein-bound iodine levels in blood, measured per deciliter?
Trả lời
(A)
3-8 mg
6
Prostaglandins are best described as which type of chemical structure?
Trả lời
(A)
C₂ unsaturated acids
7
Which researcher is not associated with significant contributions to the field of prostaglandins?
Trả lời
(D)
Kendal
8
In the nomenclature of prostaglandins, what does the numerical suffix indicate?
Trả lời
(B)
Double bonds
9
What is a key function of prostacyclins in the body?
Trả lời
(A)
Inhibition of platelet aggregation
10
Another name for vasopressin is?
Trả lời
(B)
Antidiuretic hormone
11
What substance is commonly employed to stimulate labor?
Trả lời
(A)
Prostaglandins
12
Which of the following lacks a disulphide bond in its structure?
Trả lời
(D)
Glucagon
13
Identify the statement that is inaccurate regarding epinephrine's effects on glycogenolysis.
Trả lời
(C)
Heart
14
Which of the following hormones is secreted by the hypothalamus?
Trả lời
(A)
Somatostatin
15
Which of the following is not produced by the anterior pituitary gland?
Trả lời
(D)
Gonadotropin
16
Which hormone is not regulated by adrenocorticotropic hormone (ACTH)?
Trả lời
(A)
Aldosterone
17
Which organ favors fructose over glucose for its metabolic needs?
Trả lời
(B)
Testes
18
Where does the complete synthesis of creatine primarily occur?
Trả lời
(C)
Pancreas
19
What type of peptide is thyrotropin-releasing hormone (TRH)?
Trả lời
(B)
Tripeptide
20
In the context of the hypothalamo-gonadal axis, which of the following is most closely related to the pituitary gland?
Trả lời
(C)
Hypophyseal
21
Who discovered the amino acid sequence of human growth hormone and its synthesis method?
Trả lời
(C)
Chah Holi
22
What is the precursor molecule for ACTH, β-tropin, and endorphins?
Trả lời
(D)
All of these
23
From which amino acid is adrenaline synthesized?
Trả lời
(C)
Tyrosine
24
What hormone does corticotropin-releasing hormone directly stimulate the release of?
Trả lời
(A)
Pro-opiomelanocortin
25
What is the immediate precursor molecule for α, β, and γ endorphins?
Trả lời
(B)
β-lipotropin
26
What is believed to be the nature of the prolactin-release inhibiting hormone?
Trả lời
(C)
Dopanine
27
Which of the following is NOT a characteristic of Cushing's disease?
Trả lời
(D)
Hyperkalemia
28
How does insulin affect the permeability of glucose in muscle cell plasma membranes?
Trả lời
(D)
By membrane cruting the hexose carries of intracellular organelles and making them fuse with the plasma membrane
29
Which of the following locations produce somatostatin?
Trả lời
(C)
Hypothalamus and pancreas
30
Where are insulin-like growth hormones primarily produced?
Trả lời
(B)
Liver
31
Which substance is commonly elevated in the urine of individuals with pheochromocytoma?
Trả lời
(B)
VMA
32
Which condition is associated with the chemical pathology observed in aldosteronism?
Trả lời
(B)
Cushing's
33
Which of the following proteins does not typically bind to thyroid hormones?
Trả lời
(D)
Haptoglobin
34
What is the primary effect of epinephrine on muscle tissue?
Trả lời
(D)
Glycogenolysis
35
What is the nature of Reverse T3?
Trả lời
(B)
Formed from T₁ but has no hormone function
36
Which hormone, produced by the pancreas, plays a role in promoting hypogenesis?
Trả lời
(A)
Insulin
37
Which single antidiabetogenic hormone effectively counteracts the effects of several diabetogenic hormones?
Trả lời
(C)
Insulin
38
Which statement accurately describes a physiological process?
Trả lời
(B)
Insulin increases utilization of glucose
39
What is the precursor molecule used in the synthesis of steroid hormones?
Trả lời
(D)
Cholesterol
40
What term describes the specific organs or tissues that are targeted by hormones?
Trả lời
(C)
Target organ/Tissue
41
A specific peptide hormone consists of 32 amino acids and has a molecular weight of 3,600. Which of the following is most likely this hormone?
Trả lời
(C)
Calcitonine
42
What physiological effect is observed in Cushing's syndrome, a condition related to adrenal cortex tumors?
Trả lời
(D)
Excessive production of cortisol
43
How would a strong cup of coffee most likely impact the body?
Trả lời
(C)
Enhance the effects of epinephrine
44
What is the primary consequence of increased water reabsorption in the kidney, influenced by a particular hormone?
Trả lời
(C)
Vasopressin
45
A deficiency of both Glucocorticoids and mineral corticoids could be due to a specific defect within the adrenal cortex. Which of the following defects might cause this?
Trả lời
(D)
C-a-Hydroxylase deficiency
46
The mechanism of action involving ADP ribosylation is characteristic of which of the following?
Trả lời
(A)
Cholera toxin
47
From which amino acid is the following hormone primarily derived?
Trả lời
(B)
Thyroxine
48
How does Insulin regulate fatty acid synthesis?
Trả lời
(A)
Dephosphorylating of acetyl CoA carboxylase
49
The formation of the second messenger inositol 1,4,5 triphosphate (IP3) due to hormonal stimulation leads directly to the release of which intracellular messenger?
Trả lời
(C)
Calcinon
50
What is true about hormone receptors that stimulate cAMP production?
Trả lời
(B)
are proteins distinct and separate from those that catalyze the production of cAMP
