Excretory products and their elimination practice · Mixed difficulty

Autoregulation of GFR (Glomerulus Filtration Rate) is takes place by

Read the following points.

i. Increases GFR
ii. Increases B.P.

iii. Decreases blood volume
iv. Increases aldosterone secretion

v. Vasoconstrictor
vi. Increases $N{a^ + }$ excretion

How many points are correct about Angiotensin-II?

In micturition,

Micturation is associated with

In insects, the removal of nitrogenous wastes and osmoregulation occurs by

Assertion: Liver is referred to as the primary excretory organ in vertebrates.
Reason: Liver helps in excretion of bile pigments and many drugs.

Assertion: Aldosterone leads to the increase in blood pressure.
Reason: Aldosterone causes reabsorption of sodium ion and water from distal part of tubules

The first step in the urine formation is the filtration of the blood, which is carried by the …A... and is called …B… . On an average …C… . mL of blood is filtered by kidneys per minute, which constitutes …D… of the blood pumped out by each ventricle of the heart in a minute.
Choose the correct options for the blanks A to D to complete the given NCERT statement

Statement - A: Kidneys filter about 1/5th of cardiac output per minute.

Statement - B: Glomerular filtration rate is nearly 1/5th of renal plasma flow.

In mammals, which blood vessels would normally carry largest amount of urea

Human kidneys can produce urine nearly

Select the incorrectly matched

Normally, which is absent in glomerular filtrate is

Inner to the hilum of the kidney, there is a broad funnel-shaped space called

Simple cuboidal brush bordered epithelium lines

Uremia refers

Glucose, Na, and amino acid are actively transported substances, because

Increase in blood pressure is caused by

Which part of nephron is not present in the cortex

Protonephridia primarily concerned with

Micturition reflex is a neural mechanism to

Green glands perform the excretory function in

Glucose and amino acids are reabsorbed in the

Choose the correct ones.

I. Efferent arteriole carries the blood away from the glomerulus toward the renal artery

II. Afferent arteriole carries the blood to the renal vein

III. Podocytes form minute spaces (slip pores) for the filtration of blood into the Bowman's capsule

JGA (Juxta Glomerular Apparatus), a sensitive region, which regulates the glomerular filtration rate is present near the

Mammals excrete

Which of the following is both osmoregulator as well as nitrogenous product?

Statement - A: The principal nitrogenous waste in humans is synthesized in the liver.

Statement - B: During summer when body loses lots of water by evaporation, the release of $A D H$ is supressed.

The yellow colour of normal urine is due to

Assertion: Tubular secretion takes part in the removal of foreign bodies, ions and molecules from the body.

Reason: As much as 99 percent of the material in the filtrate is reabsorbed from the body due to tubular secretion.