Curriculum

Ncert -Class 11 - Biology- Unit- 5-HUMAN PHYSIOLOGY

Chapter 14 -Breathing and Exchange of Gases

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Chapter-15-Body Fluids And Circulation

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Chapter-16-Excretory Products And Their Elimination

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Chapter-17-Locomotion And Movement

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Chapter-18-Neural Control And Coordination

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Chapter-19-Chemical Coordination And Integration

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MCQ Pratice Test -Chapter-19-Chemical Coordination And Integration

Instruction

Total Questions : 20

Total time :20 min

Total Marks : 20 x 3 = 60 Marks

Each Correct Question carries : 3 Marks

Each incorrect Question Carries : -1 Marks

Each Unattempted Question carry : 0 Marks

Be careful On Negative Markings

............. is the only complete ring of the cartilage around the trachea.

Thyroid cartilage

Pretracheal fascia

Cricoid cartilage

Articular cartilage

None

Which one of the following four glands is correctly matched with the accompanying description?

Parathyroid - Secretes parathormone, which promotes movement of calcium ions from blood into bones during ossification.

Thymus - Starts undergoing atrophy after puberty

Pancreas - Delta cells of the islets of Langerhans secrete a hormone which stimulates glycolysis in liver

Thyroid - Hyperactivity in young children causes cretinism

None

Consider the following four statements (a-d) and select the option which includes the correct ones only.

(a) The thyroid hormone play an important role in basal metabolic rate and erythropoisis

(b) Glucocorticoids inhibits inflammatory reactions by suppressing the immune system and promotes erythropoisis

(c ) Androgen promotes development maturation and function of the male sex organ as well as erythropoisis

(d) The gastrointestinal tract not only secretes gastric inhibitory peptide but also promotes formation of RBC.

None

Calcitonin is a thyroid hormone, which ________.

Lowers calcium level in blood

Has no effect on calcium

Elevates potassium level in blood

Elevates calcium level in blood

None

The female hormone that causes deposition of fat in the breast, and hips and the growth of pubic hairs during puberty is

Progesterone

Luteinizing hormone

Follicle-stimulating hormone

Estrogen

None

Which of the following statements is false?

Hindbrain contains medulla, pons and cerebellum

Hypothalamus has an important role in recognising and experiencing

Thalamus is an important sensory relay structure

Cerebral cortex in humans is folded into convolutions

None

When the blood phosphorus level becomes too high, the result is

The parathyroid glands release PTH, which binds to bone cells.

The thyroid gland releases calcitonin, which binds to bone cells.

The pancreas release glucagon, which binds to liver cells

The thyroid gland releases thyroid hormone, which binds to small intestine cells

None

Cortex, sympathetic, medulla, steroid, aldosterone, catecholamine, cortisol, adrenocorticotrophic, noradrenaline, adrenaline

Fill in the blanks with the above words.

Adrenal glands are paired structures located on the top of kidneys. Each adrenal gland has two parts outer ...... (1) ........ and inner ....... (2) ...... The outer part secretes ...... (3) .........hormones (chemical nature) e.g., ..... (4) ........ and ...... (5) ......... and is controlled by ........ (6) ......... hormone of the pituitary gland. The inner part secretes ....... (7) .......... hormones (chemical nature) eg., ....... (8) .......... and ........ (9) ......... and is controlled by ........ (10) .......... nervous system.

1. Medulla, 2. Cortex, 3. Steroid, 4. Aldosterone, 5. Cortisol, 6. Adrenocorticotrophic, 7. Catecholamine, 8. Adrenaline, 9. Noradrenaline, 10. Sympathetic

1. Medulla, 2. Cortex, 3. Steroid, 4. Aldosterone, 5. Cortisol, 6. Adrenocorticotrophic, 7. Catecholamine, 8. Adrenaline, 9. Sympathetic, 10. Noradrenaline

1. Medulla, 2. Cortex, . Steroid, 4. Cortisol, 5. Aldosterone, 6. Adrenocorticotrophic, 7. Catecholamine, 8. Adrenaline, 9. Noradrenaline, 10. Sympathetic

1. Cortex, 2. Medulla, 3. Steroid, 4. Aldosterone, 5. Cortisol, 6. Adrenocorticotrophic, 7. Catecholamine, 8. Adrenaline, 9. Noradrenaline, 10. Sympathetic

None

Pineal gland of human brain secretes melatonin, which is concerned with

Colouration of skin

Anger

Sleep

Body temperature

None

10.

Thyroid hormone increase the rate of breathing, intake and consumption of oxygen, and increase the activity of mitochondria. Under which of the following criteria, the function of thyroxine can be classified?

Cardiovascular

All of the above

Metabolic

Developmental

None

11.

Arrange the following step in correct sequence found during the mechanism of lipid insoluble hormone (epinephrine) function or action.

A. Second messenger formation

B. Binding to the surface receptor

C. Glycogenolysis

D. Adenylate cyclase activation

None of the above

C, A, D and B

B, D, A and C

D, B, C and A

None

12.

The pineal gland secretes a hormone progesterone which helps to regulate sleep pattern. Thyroid glands release hormone which regulate the level of calcium in the blood with the help of calcitonin which is produced in the parathyroid glands. Select the correct option regarding the given paragraph.

i) Positions of pineal and parathyroid should be interchanged

ii) Progesterone must be replaced by melatonin

iii) Parathyroid should not be replaced as it is correctly mentioned.

iv) Positions of progesterone and calcitonin should be interchanged

v) Positions of thyroid and parathyroid should be interchanged

ii and iv only

ii and v only

i and iii only

i, ii and v only

None

13.

Choose the correct answer from the alternatives given.

Parathyroid hormone (PTH) regulates:

regulates sleep

regulates temperature

calcium balance between blood and tissues

glucose balance between blood and tissues

None

14.

The two hormones secreted by adrenal glands which regulate the rate of metabolism and the concentration of salts in blood and prepares the body to face the emergency are ........... and ............ which helps in metabolic functions.

Insulin and glucagon

Cortisone and adrenaline

Cortisone and dopamine

Testosterone and estrogen

None

15.

Select the correct match of endocrine gland, its hormone and its function.

Ovary - FSH - stimulates follicular development and secretion of estrogens

Leydig cells - androgen - initiates production of sperms

Corpus luteum - estrogen - essential for maintenance of endometrium

Pancreas - estrogen - initiates secretion of milk

None

16.

Select the answer which correctly matches the endocrine gland with the hormone it secretes and its function/deficiency symptom :

Endocrine gland - Anterior pituitary, Hormone - Oxytocin, Function/deficiency symptoms - Stimulates uterus contraction during child birth

Endocrine gland - Corpus luteum, Hormone - Testosterone, Function/deficiency symptoms - stimulates spermatogenesis

Endocrine gland - Posterior pituitary, Hormone - Growth Hormone (GH), Function/deficiency symptoms - Oversecretion stimulates abnormal growth

Endocrine gland - Thyroid gland, Hormone - Thyroxine, Function/deficiency symptoms - Lack of iodine in diet results in goitre

None

17.

The low blood sugar level is maintained due to the secretion of hormone by the gland

Adrenal medulla

Pancreas

Parathyroid

Salivery gland

None

18.

What role is performed by pancreas in order to deal with an increased blood glucose level above normal range?

Releases insulin, signaling the liver to convert glucose to glycogen

Releases insulin, signaling muscle cells to release glucose

Releases glucagon, signaling muscle cells to take up glucose

Releases glucagon, signaling adipose cells to take up glucose

None

19.

Androgens are produced by

Testes and adrenals

Adrenals only

Adrenals and ovaries

Ovaries and testes

None

20.

What effect does the presence of ANF have on the body?

It increases the excretion of sodium and water

It stimulates the production of angiotensin

It increases the production of renin

It stimulates the production of aldosterone

None

Time's up