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Home/CLASS 10/science/control and coordination
Curated PYQ Collection

Top 50 Most Repeated CONTROL AND COORDINATION PYQs | CLASS 10

A curated collection of the most important questions from CONTROL AND COORDINATION, fully solved with step-by-step concepts to prepare for CLASS 10.

Question #1

Practice Question

A.To regulate blood sugar levels
B.To regulate blood pressure
C.To regulate metabolism
D.To regulate body temperature

Concept Applied

The thyroid gland produces hormones that regulate metabolism, including the rate at which the body uses energy....

Read Full Step-by-Step Solution →

Question #2

Practice Question

A.Insulin
B.Glucagon
C.Somatostatin
D.Adrenaline

Concept Applied

Insulin, released by the $\beta$‑cells of the pancreas, facilitates cellular uptake of glucose, thereby reducing blood glucose concentration....

Read Full Step-by-Step Solution →

Question #3

Practice Question

A.Insulin
B.Thyroxine
C.Calcitonin
D.Adrenaline

Concept Applied

Calcitonin from thyroid lowers blood calcium; PTH raises it....

Read Full Step-by-Step Solution →

Question #4

Practice Question

A.Calcitonin
B.Parathyroid hormone (PTH)
C.Thyroxine (T₄)
D.Insulin

Concept Applied

Thyroxine (T₄) and triiodothyronine (T₃) are thyroid hormones that raise basal metabolic rate; calcitonin lowers blood calcium, and PTH raises calcium...

Read Full Step-by-Step Solution →

Question #5

Practice Question

A.Cerebrum
B.Cerebellum
C.Medulla oblongata
D.Hypothalamus

Concept Applied

Medulla oblongata regulates involuntary functions like heartbeat and breathing....

Read Full Step-by-Step Solution →

Question #6

Practice Question

A.Phototropism
B.Geotropism
C.Chemotropism
D.Hydrotropism

Concept Applied

Geotropism is the growth response of plants to gravity....

Read Full Step-by-Step Solution →

Question #7

Practice Question

A.Insulin
B.Glucagon
C.Adrenaline
D.Cortisol

Concept Applied

Insulin stimulates glucose uptake and glycogen synthesis in liver and muscle cells....

Read Full Step-by-Step Solution →

Question #8

Practice Question

A.Increased heart rate
B.Dilation of pupils
C.Decreased blood glucose level
D.Bronchodilation

Concept Applied

Adrenaline raises blood glucose by stimulating glycogenolysis and gluconeogenesis; it does not lower glucose. The other three options are well‑known a...

Read Full Step-by-Step Solution →

Question #9

Practice Question

A.Decrease in heart rate
B.Dilation of blood vessels to skin
C.Increase in blood sugar level
D.Constriction of pupils

Concept Applied

Adrenaline prepares the body for 'fight or flight' response. It increases heart rate, breathing rate, and blood sugar levels by promoting glycogen bre...

Read Full Step-by-Step Solution →

Question #10

Practice Question

A.Thyroid
B.Pituitary
C.Adrenal
D.Pancreas

Concept Applied

Adrenal gland releases adrenaline for fight or flight....

Read Full Step-by-Step Solution →

Question #11

Practice Question

A.To regulate blood sugar levels
B.To regulate blood pressure
C.To regulate metabolism
D.To regulate body temperature

Concept Applied

The thyroid gland produces hormones that regulate metabolism, including the rate at which the body uses energy....

Read Full Step-by-Step Solution →

Question #12

Practice Question

A.Insulin
B.Glucagon
C.Somatostatin
D.Adrenaline

Concept Applied

Insulin, released by the $\beta$‑cells of the pancreas, facilitates cellular uptake of glucose, thereby reducing blood glucose concentration....

Read Full Step-by-Step Solution →

Question #13

Practice Question

A.Insulin
B.Thyroxine
C.Calcitonin
D.Adrenaline

Concept Applied

Calcitonin from thyroid lowers blood calcium; PTH raises it....

Read Full Step-by-Step Solution →

Question #14

Practice Question

A.Calcitonin
B.Parathyroid hormone (PTH)
C.Thyroxine (T₄)
D.Insulin

Concept Applied

Thyroxine (T₄) and triiodothyronine (T₃) are thyroid hormones that raise basal metabolic rate; calcitonin lowers blood calcium, and PTH raises calcium...

Read Full Step-by-Step Solution →

Question #15

Practice Question

A.Cerebrum
B.Cerebellum
C.Medulla oblongata
D.Hypothalamus

Concept Applied

Medulla oblongata regulates involuntary functions like heartbeat and breathing....

Read Full Step-by-Step Solution →

Question #16

Practice Question

A.Phototropism
B.Geotropism
C.Chemotropism
D.Hydrotropism

Concept Applied

Geotropism is the growth response of plants to gravity....

Read Full Step-by-Step Solution →

Question #17

Practice Question

A.Insulin
B.Glucagon
C.Adrenaline
D.Cortisol

Concept Applied

Insulin stimulates glucose uptake and glycogen synthesis in liver and muscle cells....

Read Full Step-by-Step Solution →

Question #18

Practice Question

A.Increased heart rate
B.Dilation of pupils
C.Decreased blood glucose level
D.Bronchodilation

Concept Applied

Adrenaline raises blood glucose by stimulating glycogenolysis and gluconeogenesis; it does not lower glucose. The other three options are well‑known a...

Read Full Step-by-Step Solution →

Question #19

Practice Question

A.Decrease in heart rate
B.Dilation of blood vessels to skin
C.Increase in blood sugar level
D.Constriction of pupils

Concept Applied

Adrenaline prepares the body for 'fight or flight' response. It increases heart rate, breathing rate, and blood sugar levels by promoting glycogen bre...

Read Full Step-by-Step Solution →

Question #20

Practice Question

A.Thyroid
B.Pituitary
C.Adrenal
D.Pancreas

Concept Applied

Adrenal gland releases adrenaline for fight or flight....

Read Full Step-by-Step Solution →

Question #21

Practice Question

A.To regulate blood sugar levels
B.To regulate blood pressure
C.To regulate metabolism
D.To regulate body temperature

Concept Applied

The thyroid gland produces hormones that regulate metabolism, including the rate at which the body uses energy....

Read Full Step-by-Step Solution →

Question #22

Practice Question

A.Insulin
B.Glucagon
C.Somatostatin
D.Adrenaline

Concept Applied

Insulin, released by the $\beta$‑cells of the pancreas, facilitates cellular uptake of glucose, thereby reducing blood glucose concentration....

Read Full Step-by-Step Solution →

Question #23

Practice Question

A.Insulin
B.Thyroxine
C.Calcitonin
D.Adrenaline

Concept Applied

Calcitonin from thyroid lowers blood calcium; PTH raises it....

Read Full Step-by-Step Solution →

Question #24

Practice Question

A.Calcitonin
B.Parathyroid hormone (PTH)
C.Thyroxine (T₄)
D.Insulin

Concept Applied

Thyroxine (T₄) and triiodothyronine (T₃) are thyroid hormones that raise basal metabolic rate; calcitonin lowers blood calcium, and PTH raises calcium...

Read Full Step-by-Step Solution →

Question #25

Practice Question

A.Cerebrum
B.Cerebellum
C.Medulla oblongata
D.Hypothalamus

Concept Applied

Medulla oblongata regulates involuntary functions like heartbeat and breathing....

Read Full Step-by-Step Solution →

Question #26

Practice Question

A.Phototropism
B.Geotropism
C.Chemotropism
D.Hydrotropism

Concept Applied

Geotropism is the growth response of plants to gravity....

Read Full Step-by-Step Solution →

Question #27

Practice Question

A.Insulin
B.Glucagon
C.Adrenaline
D.Cortisol

Concept Applied

Insulin stimulates glucose uptake and glycogen synthesis in liver and muscle cells....

Read Full Step-by-Step Solution →

Question #28

Practice Question

A.Increased heart rate
B.Dilation of pupils
C.Decreased blood glucose level
D.Bronchodilation

Concept Applied

Adrenaline raises blood glucose by stimulating glycogenolysis and gluconeogenesis; it does not lower glucose. The other three options are well‑known a...

Read Full Step-by-Step Solution →

Question #29

Practice Question

A.Decrease in heart rate
B.Dilation of blood vessels to skin
C.Increase in blood sugar level
D.Constriction of pupils

Concept Applied

Adrenaline prepares the body for 'fight or flight' response. It increases heart rate, breathing rate, and blood sugar levels by promoting glycogen bre...

Read Full Step-by-Step Solution →

Question #30

Practice Question

A.Thyroid
B.Pituitary
C.Adrenal
D.Pancreas

Concept Applied

Adrenal gland releases adrenaline for fight or flight....

Read Full Step-by-Step Solution →
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