What is the role-played by luteinizing
Question: What is the role-played by luteinizing hormones in males and females respectively? Solution: In the case of Males, the LH stimulates Androgen secretion and synthesis from testes. The principal of androgen is testosterone which stimulates the spermatogenesis and responsible for the growth and development of male accessory sex organs. In females, LH induces ovulation, on the day of ovulation follicle rupture and release secondary oocyte under the influence of LH. LH promotes the developm...
Read More →Rearrange the following hormones in Column I
Question: Rearrange the following hormones in Column I to match with their chemical nature in Column II Solution: a- iv, b- i, c- ii, d- iii....
Read More →Correct the following statements
Question: Correct the following statements by replacing the term underlined. a. Insulin is a steroid hormone. b. TSH is secreted from the corpus luteum c. Tetraiodothyronine is an emergency hormone. d. The pineal gland is located on the anterior part of the kidney. Solution: (a) Insulin is a protein hormone (b) TSH is secreted from the anterior pituitary. (c) Adrenaline is an emergency hormone. (d) The adrenal gland is located on the anterior part of the kidney....
Read More →A patient complains of constant thirst,
Question: A patient complains of constant thirst, excessive passing of urine and low blood pressure. When the doctor checked the patients blood glucose and blood insulin level, the level was normal or slightly low. The doctor diagnosed the condition as diabetes insipid us. But he decided to measure one more hormone in patients blood. Which hormone does the doctor intend to measure? Solution: Doctor intends to measure vasopressin hormone because this hormone increases the reabsorption of water by...
Read More →Evaluate the following integrals:
Question: Evaluate the following integrals: $\int \sqrt{e^{x}-1} d x$ Solution: Assume $e^{x}-1=t^{2}$ $d\left(e^{x}-1\right)=d\left(t^{2}\right)$ $e^{x} \cdot d x=2 t \cdot d t$ $\Rightarrow \mathrm{dx}=\frac{2 t}{e^{\mathrm{x}}} \mathrm{dt}$ $e^{x}=t^{2}+1$ $\Rightarrow \mathrm{dx}=\frac{2 \mathrm{t}}{\mathrm{t}^{2}+1} \mathrm{dt}$ Substituting $t$ and $d t$ $\Rightarrow \int \sqrt{t^{2}} \cdot \frac{2 t}{t^{2}+1} d t$ $\Rightarrow \int t \cdot \frac{2 t}{t^{2}+1} d t$ $\Rightarrow \int \frac{...
Read More →State whether true or false:
Question: State whether true or false: a. The gastrointestinal tract, kidney and heart also produce hormones. b. Pars distalis produces six trophic hormones. c. B-lymphocytes provide cell-mediated immunity. d. Insulin resistance results in a disease called diabetes mellitus. Solution: a. True b. True c. False because T. lymphocytes provide cell-mediated immunity and B- lymphocytes provide humoral immunity which is a type of adaptive immune system. d. True...
Read More →What is the role of the second messenger
Question: What is the role of the second messenger in the mechanism of protein hormone action? Solution: CAMP acts as an intercellular hormone which is a secondary messenger those deliver the information as intracellular to the target cells....
Read More →Name the hormone that helps in cell-mediated immunity.
Question: Name the hormone that helps in cell-mediated immunity. Solution: Thymosin is the hormone that helps in cell-mediated immunity. It helps in maturation of T- cells and differentiation of T-cells....
Read More →Name the endocrine gland that produces
Question: Name the endocrine gland that produces calcitonin and mention the role played by this hormone. Solution: The thyroid gland is an endocrine gland which produces calcitonin hormone which is a peptide hormone. This hormone decreases the concentration of calcium ions in the plasma....
Read More →Name the only hormone secreted
Question: Name the only hormone secreted by pars intermedia of the pituitary gland. Solution: Pars intermedia secrete only one hormone called melanocyte-stimulating hormone (MSH)....
Read More →What is erythropoiesis?
Question: What is erythropoiesis? Which hormone stimulates it? Solution: Formation of RBCs is called Erythropoiesis. Erythropoietin hormone stimulates for erythropoiesis....
Read More →Which of the two adrenocortical layers,
Question: Which of the two adrenocortical layers, zona glomerulosa and zona reticularis lies outside enveloping the other? Solution: Zonaglomerulosa is the outermost layer which envelops the other layers. The middle layer is Zona fasciculate and innermost layer is Zonareticularis....
Read More →There are many endocrine glands in the human body.
Question: There are many endocrine glands in the human body. Name the glands which are absent in male and the one absent in the female. Solution: Ovaries are absent in male and testes are absent in female both secrete sex hormones....
Read More →Which of the following conditions is not linked
Question: Which of the following conditions is not linked to a deficiency of thyroid hormones? a. Cretinism b. Goitre c. Myxedema d. Exophthalmia Solution: Option (d)Exophthalmiais the answer....
Read More →Evaluate the following integrals:
Question: Evaluate the following integrals: $\int \frac{1}{x \sqrt{x^{4}-1}} d x$ Solution: Assume $x^{2}=t$ $2 x \cdot d x=d t$ $\Rightarrow \mathrm{dx}=\frac{\mathrm{dt}}{2 \mathrm{x}}$ Substituting $t$ and $d t$ $\Rightarrow \int \frac{\mathrm{dt}}{2 \mathrm{x}} \times \frac{1}{\mathrm{x} \times \sqrt{\mathrm{t}^{2}-1}}$ $\Rightarrow \int \frac{\mathrm{dt}}{2 \mathrm{x}^{2}} \times \frac{1}{\sqrt{\mathrm{t}^{2}-1}}$ $\Rightarrow \frac{1}{2} \int \frac{\mathrm{dt}}{\mathrm{t} \sqrt{\mathrm{t}^...
Read More →Which of the following organs in mammals
Question: Which of the following organs in mammals does not consist of a central medullary region surrounded by a cortical region? a. Ovary b. Adrenal c. Liver d. Kidney Solution: Option (c)Liver is the answer....
Read More →Which of the following organs in mammals
Question: Which of the following organs in mammals does not consist of a central calcium balance in the human body? a. Vitamin D b. Parathyroid hormone c. Thyrocalcitonin d. Thymosin Solution: Option (d) Thymosin is the answer....
Read More →Choose the correct option among
Question: Choose the correct option among the following options Options: a. A-ii, B-i, C-iii, CD-i b. A-iv, B-i, C-iii, D-ii c. A-i, B-ii, C-iii, D-iv d. A-i, B-iv, C-ii, D-iii Solution: Option (b)A-iv, B-i, C-iii, D-ii is the answer....
Read More →Evaluate the following integrals:
Question: Evaluate the following integrals: $\int 5^{5^{5^{x}}} 5^{5^{x}} 5^{x} d x$ Solution: Assume $5^{5^{5^{x}}}=t$ $\Rightarrow \mathrm{d}\left(5^{5^{5^{x}}}\right)=\mathrm{dt}$ $\Rightarrow 5^{5^{x}} \cdot 5^{5^{x}} 5^{x}\left(\log 5^{3}\right) d x=d t$ Substituting $t$ and $d t$ $\Rightarrow 5^{5^{5^{x}}} \cdot 5^{5^{x}} 5^{x} \cdot d x=\frac{d t}{\left(\log 5^{3}\right)}$ $\Rightarrow \int \frac{d t}{\left(\log 5^{2}\right)}$ $\Rightarrow \frac{1}{\left(\log 5^{3}\right)} \int \mathrm{dt...
Read More →Hormones are called chemical signals that stimulate specific target tissues.
Question: Hormones are called chemical signals that stimulate specific target tissues. Their action depends on the presenc3e of receptors on the respective target tissues. Which of the following is the correct location of the receptors in the case of protein hormones? a. Extracellular matrix b. Blood c. Plasma membrane d. Nucleus Solution: Option (c)Plasma membrane is the answer....
Read More →A hormone responsible for the normal
Question: A hormone responsible for the normal sleep-wake cycle is a. Epinephrine b. Gastrin c. Melatonin d. Insulin Solution: Option (c)Melatonin is the answer....
Read More →Cortisol is secreted by
Question: Cortisol is secreted by a. Pancrease b. Thyroid c. Adrenal d. Thymus Solution: Option (c)Adrenal is the answer....
Read More →Corpus luteum secretes a hormone called
Question: Corpus luteum secretes a hormone called a. Prolactin b. Progesterone c. Aldosterone d. Testosterone Solution: Option (b)Progesterone is the answer....
Read More →Leydig cells produce a group of hormones called
Question: Leydig cells produce a group of hormones called a. Androgens b. Estrogens c. Aldosterone d. Gonadotropins Solution: Option (a) Androgensis the answer....
Read More →In the mechanism of action of a protein hormone,
Question: In the mechanism of action of a protein hormone, one of the second messengers is a. Cyclic AMP b. Insulin c. T3 d. Gastrin Solution: Option (a)Cyclic AMPis the answer....
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