Match List I and List II List I List II A CCK I Kidney B GIP II Heart C ANF III Gastric gland D ADH IV Pancreas Choose the correct answer from the options given below:

A - IV ; B - III ; C - II ; D - I

A - IV ; B - II ; C - III ; D - I

A - III ; B - II ; C - IV ; D - I

A - II ; B - IV ; C - I ; D - III

Match the following hormones with the respective disease: Column – I Column – II ( a ) Insulin ( i ) Addison’s disease ( b ) Thyroxin ( i i ) Diabetes insipidus ( c ) Corticoids ( i i i ) Acromegaly ( d ) Growth Hormone ( i v ) Goitre ( v ) Diabetes mellitus Select the correct option

a - ( v ) ; b - ( i v ) ; c - ( i ) ; d - ( i i i )

a - ( v ) ; b - ( i ) ; c - ( i i ) ; d - ( i i i )

a - ( i i ) ; b - ( i v ) ; c - ( i i i ) ; d - ( i )

a - ( i i ) ; b - ( i v ) ; c - ( i ) ; d - ( i i i )

is a hormone secreted by the juxtaglomerular cells of the kidney

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

Which of these is not an important component of initiation of parturition in humans?

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

Which of the following pairs of hormones are not antagonistic (having opposite effects) to each other?

HARD

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

Which one of the following statements is incorrect?

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

Name a peptide hormone which acts mainly on hepatocytes and adipocytes and enhances cellular glucose uptake and utilisation.

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

Match List I and List II

	List I		List II
A	CCK	I	Kidney
B	GIP	II	Heart
C	ANF	III	Gastric gland
D	ADH	IV	Pancreas

Choose the correct answer from the options given below:

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

The posterior pituitary gland is not a 'true' endocrine gland because

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

The rigidity of cellulose is due to:

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

A diabetic individual becomes unconscious after self-administering insulin. What should be done immediately to revive the individual?

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

The amino acid tryptophan is the precursor for the synthesis of:

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

Which one of the following hormones though synthesized elsewhere, is stored and release by the master gland?

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

Which of the following hormones that controls blood pressure is secreted by human heart?

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

Study the following and pick up the correct combinations

S.No	Ductless Gland	Hormone	Function
(I)	Thyroid	Thyroxine	Regulation of basal metabolic rate
(II)	Parathyroid	Calcitonin	Lowers calcium in blood
(III)	Pineal	ADH	Darkening of skin
(IV)	Pituitary	Prolactin	Enlargement of mammary glands

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

Oxytocin and vasopressin are synthesized in

HARD

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

When you hold your breath, which of the following gas changes in blood would first lead to the urge to breathe?

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

Three uniformly watered plants i, ii and iii were kept in 45% relative humidity, 45% relative humidity with blowing wind and 95% relative humidity, respectively. Arrange these plants in the order (faster to slowest) in which they will dry up.

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

Match the following hormones with the respective disease:

	Column – I		Column – II
$(a)$	Insulin	$(i)$	Addison’s disease
$(b)$	Thyroxin	$(i i)$	Diabetes insipidus
$(c)$	Corticoids	$(i i i)$	Acromegaly
$(d)$	Growth Hormone	$(i v)$	Goitre
		$(v)$	Diabetes mellitus

Select the correct option

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

Hypersecretion of Growth Hormone in adults does not cause a further increase in height, because

EASY

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

Which one of the following hormones is not involved in sugar metabolism?

MEDIUM

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

What is an endocrine gland? What is the difference between an endocrine and an exocrine gland? Name the gland performs both endocrine as well as exocrine functions.

HARD

Life Sciences>From Molecules to Organisms: Structures and Processes>Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.>Structure and Function - Feedback mechanisms maintain a living system’s internal conditions within certain limits and mediate behaviors, allowing it to remain alive and functional even as external conditions change within some range. Feedback mechanisms can encourage (through positive feedback) or discourage (negative feedback) what is going on inside the living system

The pituitary gland and hypothalamus are shown in the figure with labels $1$ to $5 .$ Identify them correctly.

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is a hormone secreted by the juxtaglomerular cells of the kidney.

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