Frank solutions for Biology Part 2 [English] Class 10 ICSE chapter 9 - Excretory System [Latest edition]

Presence of glucose in urine is called ______.

Choose the correct answer:
Orinithin cycle operates in ________

Choose the correct answer:
Physiologically urea is produced by the action of an enzyme ______________

Which of these is excreted through urine in mammals?

Choose the correct answer:
Excess proteins are converted into urea in ____________

Choose the correct answer:
The smallest functional unit of the kidney is ____________

The nephrons discharge their urine at the ______.

The pale yellow colour of normal human urine is due to the pigment ______.

The structural and functional units of excretion in the human kidney is the ______.

Assertion (A): Human body produces highly toxic substances, which if not eliminated may cause death.

Reason (R): Excretory substance removes nitrogenous waste from the body.

Assertion (A): In humans, major amount of water is absorbed by the tubular part of nephron.

Reason (R): Absorption of water depends on the dissolved waste to be excreted from the body.

Name the following:
Organ which produces urea.

Name the following:
Functional unit of kidney.

Name the following:
Organ which stores urine.

Name the following:
Organ where ultrafiltration occurs.

Name the following:

The pigment that provides yellow colour to urine.

Give a technical term: 

The duct which transports urine from the kidney to the urinary bladder.

Name the following:

The main nitrogenous waste formed in the body.

Arrange and rewrite the terms in the group in the correct order to be in a logical sequence beginning with the term that is underlined:

Loop of Henle, Distal convoluted tubule, Bowman’s capsule, Proximal convoluted tubule

Choose the odd one out in the following series:
Proximal convoluted duct, loop of Henle, vein.

Choose the odd one out in the following series:
Kidney, ureter, heart

Choose the odd one out in the following serie:
Urea, uric acid, haemoglobin.

Choose the odd one out in the following series:
Glomerulus, alveoli, bronchi.

Choose the odd one out in the following series:
Renal fat, renal capsule, nerve.

Choose the odd one out in the following serie:
Column of Bertini, minora calyces, brain.

Name the organs that form the excretory system in human beings.

Correct the statement by changing the underlined word.

Normal pale colour of the urine is due to the presence of the pigment Melanin.

Label the diagram given below :

Differentiate between the following pair on the basis of what is indicated in the bracket.

Ureter and Urethra [function]

Give the biological/technical terms for the following:

The hormone increasing reabsorption of water by kidney tubules.

The diagram given alongside shows a section of a human kidney. Study the diagram carefully and answer the questions that follow:

1. Label the parts numbered 1 to 4.
2. Why does part 2 have a striped appearance?
3. What is the fluid that passes down part 4? Name the main nitrogenous waste present in it.
4. Mention the structural and functional units of kidneys.
5. Name the two major steps in the formation of the fluid mentioned in (c).

The diagram shows the Excretory System of a  Human Being. Study the same and then answer the questions that follow:

(i) Name the parts labeled 1, 2,3, and 4.
(ii) Give the main function of the parts labeled 5,6, 7 and 8.
(iii) Name the endocrine gland which could be added in diagram and state its location/position

Given below is a diagram of a human kidney cut open longitudinally. Answer the following:

1. Give definition of excretion.
2. Name the unit of kidney.
3. Why does the cortex of kidney show dotted appearance?
4. Mention the functions of kidney.
5. Write two differences in the composition of the blood flowing through blood vessels A and B.

The diagram given alongside is that of a structure present in a human kidney:

Study the same and answer the questions that follow:

1. Name the structure represented in the diagram.
2. What is the liquid entering part ‘1’ called?
   Name two substances present in this liquid that are reabsorbed in the tubule
3. What is the fluid that comes to part ‘2’ called? Name the main nitrogenous waste in it.
4. Mention the three main steps involved in the formation of the fluid mentioned in (c) above.
5. Name the substance which may be present in the fluid in part ‘2’ if a person suffers from Diabetes mellitus

Choose the old one out from the following terms and name the category to which the others belong.

Uterus, Urethra, Urinary bladder, Ureter

The diagram given alongside represents an organ system in the human body. Study the same and answer the questions that follow:

1. Identify the system
2. Label the parts marked 2 and 4. Mention the function of part 5.
3. Name the structural and functional units of the part marked 1.
4. What is the fluid that accumulates in part 3?
   Which is the main nitrogenous waste present in it?
5. Draw a neat, labelled diagram showing the longitudinal section of part 1.

The figure alongside shows a part of a nephron. Answer the questions that follow:

1. In which region of the kidney is the above structure present?
2. Label the parts numbered 1 to 4.
3. What is the technical term for the process that occurs in part 3?
4. Why is fluid X not called urine? Justify your answer.
5. Draw a neat, labelled diagram of the urinary system of a human.

Draw neat and labelled diagrams of Malpighian capsule

Define the following term:

Ultrafiltration