In animals, the control and coordination are done by the neural system and endocrine system jointly. the endocrine system performs its action by releasing certain hormones from specific glands and moving these chemicals to the target organ, tissue, or cell to perform the action.
In this practice test, we have included some important questions from the 11th class chapter "chemical coordination and integration" for neet aspirants. all questions and well explained with answers. Practice this test and score good marks...
In this practice test, we have included some important questions from the 11th class chapter "chemical coordination and integration" for neet aspirants. all questions and well explained with answers. Practice this test and score good marks...
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Q.1.
Which hormones is a stress hormone
- Norepinephrine
- Androgen
- Cortisol
- FSH
Answer:
(a) Norepinephrine
Explanation: Epinephrine and norepinephrine is released during emergency or stress.
Explanation: Epinephrine and norepinephrine is released during emergency or stress.
Q.2.
Secretin cause stimulation of
- Bile juice
- Water
- Gastric secretion
- Pepsinogen
Answer:
(b) Water
Explanation: It acts on exocrine pancreas and stimulates secretion of water and bicarbonate ions
Explanation: It acts on exocrine pancreas and stimulates secretion of water and bicarbonate ions
Q.3.
In adults insufficient thyroxine lead to
- Myxoedema
- Goitre
- Tetany
- Cretinism
Answer:
(a) Myxoedema
Q.4.
In the body both blood sodium and potassium is regulated by
- Pheromones
- Aldosterone
- Cortisols
- Androgens
Answer:
(b) Aldosterone
Explanation: Aldosterone is released
Explanation: Aldosterone is released
Q.5.
Chemical name of T4 is
- Tetradiodothyronine
- Tridiodothyronine
- Tetraiodothyronine
- Triiodothyronine
Answer:
(c) Tetraiodothyronine
Explanation: T3 is triiodothyronine and T4 is tetraiodothronine
Explanation: T3 is triiodothyronine and T4 is tetraiodothronine
Q.6.
Anabolic steroids are ___ versions of testosterone
- Effective
- Synthetic
- Natural
- Ineffective
Answer:
(b) Synthetic
Explanation: Synthetic
Explanation: Synthetic
Q.7.
which of the following acts on bones
- Melatonin
- Triiodothyronine
- GH
- Parathyroid
Answer:
(d) Parathyroid
Explanation: Parathyroid hormone also stimulates bone reabsorption
Explanation: Parathyroid hormone also stimulates bone reabsorption
Q.8.
Glucagon hormone is secreted by
- Thyroid gland
- Pituitary
- Adrenal
- Pancreas
Answer:
(d) Pancreas
Q.9.
Which of the following is male sex organs
- Insulins
- Aldosterone
- Androgens
- Pheromones
Answer:
(c) Androgens
Explanation: Rest all are not male sex organs
Explanation: Rest all are not male sex organs
Q.10.
Choose the incorrect statement
- Hormones are non-nutrients chemicals
- Exocrine glands are ductless glands
- Invertebrates have simple endocrine system
- All of the above statements are incorrect
Answer:
(b) Exocrine glands are ductless glands
Explanation: Endocrine are ductless glands
Explanation: Endocrine are ductless glands
Q.11.
Endemic goitre is a state of
- Increased thyroid function
- Normal thyroid function
- Decreased thyroid function
- Moderate thyroid function
Answer:
(c) Decreased thyroid function
Explanation: Decreased thyroid function
Explanation: Decreased thyroid function
Q.12.
PTH is called hypercalcemic hormone because it leads to
- Absorption of CaCo3 from digested food
- Reabsorption of water from renal tubules
- Increasing blood calcium levels
- Maintain ion balance in blood
Answer:
(c) Increasing blood calcium levels
Explanation: This is called so because PTH stimulates reabsorption of calcium by renal tubules and increase calcium reabsorption from digested food
Explanation: This is called so because PTH stimulates reabsorption of calcium by renal tubules and increase calcium reabsorption from digested food
Q.13.
Corpus leuteum secretes
- Progesterone
- Estrogen
- Vasopressin
- Glucagon
Answer:
(a) Progesterone
Explanation: After ovulation follicles convert into corpus leuteum and release progesterone
Explanation: After ovulation follicles convert into corpus leuteum and release progesterone
Q.14.
In children hypothyroidism lead to
- Goitre
- Acromegaly
- Cretinism
- Myxoedema
Answer:
(c) Cretinism
Explanation: Cretinism
Explanation: Cretinism
Q.15.
Diurnal rhythm of body is maintained by
- Melatonin
- Isthmus
- PTH
- Norepinephrine
Answer:
(a) Melatonin
Explanation: Melatonin is released by pineal gland
Explanation: Melatonin is released by pineal gland
Q.16.
Which hormone inhibits release of growth hormone
- Insulin
- Gonadotrophin
- Somatostatin
- Thymosin
Answer:
(c) Somatostatin
Explanation: Somatostatin is released from hypothalamus
Explanation: Somatostatin is released from hypothalamus
Q.17.
Which of the following is essential for thyroid gland
- nacl
- I3
- CaCo2
- H2Co3
Answer:
(b) I3
Explanation: Iodine is essential for thyroid gland
Explanation: Iodine is essential for thyroid gland
Q.18.
Testorone is produced by
- Leydigs cell
- Pituitary gland
- Both a and b
- Non of the above
Answer:
(a) Leydigs cell
Explanation: Leydig cell
Explanation: Leydig cell
Q.19.
The phase of menstrual cycle that last for 7-8 days are
- Ovulatory
- Menstruation
- Luteal
- Follicular
Answer:
(a) Ovulatory
Explanation: Ovulatory phase
Explanation: Ovulatory phase
Q.20.
Blood pressure is under control of
- Pituitary
- Adrenal
- Thymus
- Thyroid
Answer:
(b) Adrenal
Explanation: Adrenal gland regulates bp
Explanation: Adrenal gland regulates bp
Q.21.
Master endocrine gland is
- Pituitary
- Parathyroid
- Thyroid
- Pineal
Answer:
(a) Pituitary
Q.22.
Largest completely endocrine gland is
- Adrenal
- Thyroid
- Pituitary
- Parathyroid
Answer:
(b) Thyroid
Q.23.
Implantation of embryo and placentation is under control of
- FSH
- Estrogen
- Progesterone
- Estradiol
Answer:
(c) Progesterone
Q.24.
Insulin is secreted by
- Acinus
- A cells
- P cells
- Y cells
Answer:
(c) P cells
Explanation: P cells
Explanation: P cells
Q.25.
Hormones are
- Excretory pdt
- Enzymatory pdt
- Chemical messenger
- Nerve impulse
Answer:
(c) Chemical messenger
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