Assertion Reason Test: Chemical Coordination And Integration


10 Questions MCQ Test Biology Class 11 | Assertion Reason Test: Chemical Coordination And Integration


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This mock test of Assertion Reason Test: Chemical Coordination And Integration for NEET helps you for every NEET entrance exam. This contains 10 Multiple Choice Questions for NEET Assertion Reason Test: Chemical Coordination And Integration (mcq) to study with solutions a complete question bank. The solved questions answers in this Assertion Reason Test: Chemical Coordination And Integration quiz give you a good mix of easy questions and tough questions. NEET students definitely take this Assertion Reason Test: Chemical Coordination And Integration exercise for a better result in the exam. You can find other Assertion Reason Test: Chemical Coordination And Integration extra questions, long questions & short questions for NEET on EduRev as well by searching above.
QUESTION: 1

A: Diabetes insipidus is marked by excessive urination and too much thirst for water.

R: Antidiuretic hormone (ADH) is released by the posterior lobe of pituitary gland.

Solution: Diabetes insipidus is marked by excessive loss of urination and consquently too much thirst for water. ADH is released by the posterior pituitary.

QUESTION: 2

A: Insulin is not given orally.

R: Insulin hormone is lipid soluble and directly enters inside the cell membrane.

Solution: Insulin is not given orally because it is an amino hormone if they are not able to cross the intestinal mucosa.

QUESTION: 3

A: Chorionic gonadotropin prevents the corpus luteum from involuting.

R: It has properties similar to luteinizing hormones.

Solution: Human chorionic gonadotropin is secreted by the placenta which is known to be alnalogous to the LH (Luteinising hormone) secreted by anterior pituitary of both females and males.

QUESTION: 4

A: Thyroxine shows calorigenic effect.

R: Thyroxine increases catabolism, produces energy and increases body temperature.

Solution: Thyroxine shows calorigenic effect, because thyroxine increases catabolism, produces energy and increases body temperature by increased oxygen consumption and rates of ATP hydrolysis.

QUESTION: 5

A: Inhibin is secreted by the corpus luteum.

R: They inhibit the FSH and GnRH production.

Solution: Inhibin is secreted by corpus luteum. It is  a gonadal hormone that exerts a specific negative feedback action of the secretion of FSH and LH from gonadotrophic cells of the pituitary gland.

QUESTION: 6

A: Our body secretes adrenaline in intense cold.

R: Adrenaline raises metabolic rate.

Solution: It was reported that intense cold exposure results in the secretion of adrenal medullary hormone adrenaline which raises the metabolic rate.

QUESTION: 7

A: Occasionally mammary glands are functional in males and the condition is called gynaecomastia.

R: Decreased testosterone in later life may also lead to gynaecomastia. It is usually due to perturbation of estrogen to androgen ratio.

Solution: Gynaecomastia is the abnormal development of mammary glands in males.

In later life the fat deposition increases which results in increased secretion of oestrogen. Due to this hormone perturbation, gynaecomastia.

QUESTION: 8

A: Prolactin is unique among the pituitary hormones as it is under predominant inhibitory control of hypothalamus.

R: The controlling agent is neurotransmitter dopamine produced by tuberoinfundibular neurons.

Solution: Prolactin is unique among the pituitary hormones as it is predominant inhibitory control of hypothalamus. The controlling agent is prolactin inhibiting hormone (PIH)/ dopamine which are produced by tubero infundibular neurons.

QUESTION: 9

A: Ethanol is a diuretic agent.

R: It inhibits vasopressin secretion.

Solution:
QUESTION: 10

A: Oxytocin stimulates contraction of uterine muscles during birth and initiates ejection of milk.

R: It is synthesized in the posterior lobe of pituitary.

Solution: Oxytocin stimulates uterine muscles during birth and initiates ejection of milk.

It is released through the axon of neurosecretory cells of hypothalamus into the posterior pituitary.