The main nitrogenous waste in the body of a human is ammonia.

Important Questions on Excretory Products and their Elimination

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

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

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

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

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

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

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

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

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

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

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Oxytocin and vasopressin are synthesized in

HARD

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

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

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

How dose steroid hormone influence the cellular activities?

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

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

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

The rigidity of cellulose is due to:

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

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

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

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

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

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

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

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

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Match the following hormones with the respective disease:

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

Select the correct option

EASY

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Fight-or-flight reaction cause activation of:

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Tidal Volume and Expiratory Reserve Volume of an athlete is 500 mL and 1000 mL respectively. What will be his Expiratory Capacity if the Residual Volume is 1200 mL?

HARD

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Which one of the following statements is incorrect?

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

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

MEDIUM

Biology>Human Physiology>Excretory Products and their Elimination>Excretion in Animals

Discuss the statement: The nature of nitrogenous waste and its excretion depends on the availability of water. Explain it using any two examples.