Functions of the Kidney

Q.

What will happen if one kidney is removed from the body of a human being?

1. Death due to poisoning

2. Uremia and Coma

3. Stoppage of urination.

4. Nothing happens and the person will survive and remain normal. The remaining kidney will become hypertrophied.

Q.

What is ornithine cycle?

Q.

Which is the main excretory product in humans?

Q.

The principal nitrogenous excretory compound in humans is synthesised:

1. In the liver but eliminated mostly through kidneys

2. In the liver but eliminated mostly through kidneys

3. In kidneys as well as eliminated by kidney

4. In liver and also eliminated by the same through bile

Q.

The structural and functional unit of kidney is called

1. nephron

2. nephridia

3. ureter

4. urethra

Q. The kidneys not only remove waste products from the blood, but also play a very important role in maintaining -

1. The amount of ADH released.
2. Constant composition of the blood.
3. Body temperature.
4. Constant blood pressure

Q. if the change of valine to glutamic acid occurs in beta chain of the haemoglobin then how is the structure of the rbc is changed.haemoglobin has no genetic relation with rbc right..??

Q.

Why are tears salty?

Q. Glomerulus is a tuft of capillaries formed by __A__. Identify A and its correct statement.

1. efferent arteriole and it carry blood away from glomerulus
2. afferent arteriole and it carry blood towards glomerulus
3. efferent arteriole and it carry blood towards glomerulus
4. efferent arteriole and it carry blood away from glomerulus

Q. Serotonin in blood

1. Relaxes blood vessels
2. Promotes clotting of blood
3. Prevents clotting of blood
4. Constricts blood vessels

Q. Which of the following is least likely to be found in the glomerular filtrate?

1. Urea
2. Plasma proteins
3. Glucose
4. Water

Q.

What forms the juxtaglomerular apparatus?

Q.

Can we live without the excretory system?

Q.

Chemicals which are released at the synaptic junction are called

1. hormones

2. neurotransmitters

3. cerebrospinal fluid

4. lymph

Q. In Bowman's capsule ultrafiltration means

Q.

The basic functional unit of human kidney is:

1. Henle’s loop

2. Nephron

3. Nephridia

4. Pyramid

Q.

_______ is the U shaped structure in nephron.

Q.

What is the function of parapodia and flame cells?

Q. Ureotelic animals

1. lack urease
2. do not excrete urea
3. cannot form uric add
4. live in water

Q. The human kidney

1. Is responsible for the storage of nutrients such as glycogen
2. Concentrates the urine by actively transporting water out of the filtrate
3. Produces more dilute urine when the collection ducts become less permeable to water
4. Responds to antidiuretic hormone by incrasing urine output

Q. Indicate whether the following statements are true or false
(a)Micturition is carried out by a reflex.
(b)ADH helps in water elimination, making the urine hypotonic.
(c)Protein free fluid is filtered from blood plasma into the Bowmans Capsule.
(d)Henles loop plays an important role in concentrating the urine.
(e)Glucose is actively reabsorbed in the proximal convoluted tubule.

Q. Main functions, of kidney is

1. Passive absorption
2. Ultrafiltration
3. Selective reabsorption
4. Both B and C

Q. Which one is not the function of kidney?

1. Osmoregulation
2. Salt retention
3. Excretion
4. Synthesis of urea

Q. Functional unit in a kidney is

1. Nephron
2. Nephritis
3. Neuron
4. Loop of Henle

Q. Where does ultrafiltration, reabsorption and secretion occur in a nephron ?

Q. Kidney stones are the crystals of

1. sodium chloride
2. silica
3. potassium chloride
4. calcium oxalate

Q.

How do kidneys respond to reduced blood flow?

Q. The organs A of a person have been damaged completely due to which too much of a poisonous waste material B has started accumulating in his blood, making it dirty. In order to save this person's life, the blood from an artery in the person's arm is made to flow into long tubes made of substance E which are kept in coiled form in a tank containing solution F. This solution contains three materials G, H and I in similar proportions to those in normal blood. As the person's blood passes through long tubes of substance E, most of the wastes present in it go into solution. The clean blood is then put back into a vein in the arm of the person for circulation.
(b) Name the waste substance B.

Q. Vital morphological and physiological units of mammalian kidney are

1. seminiferous tubules
2. uriniferous tubules
3. ureters
4. nephridia

Q. Which one of the following body functions is not performed by kidneys?

1. Excretion
2. Osmoregulation
3. Destruction of dead blood corpuscles
4. Regulation of blood volume