Maharashtra State BoardHSC Science (General) 11th
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Balbharati solutions for Biology 11th Standard Maharashtra State Board chapter 15 - Excretion and Osmoregulation [Latest edition]

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Chapters

Biology 11th Standard Maharashtra State Board - Shaalaa.com

Chapter 15: Excretion and Osmoregulation

Exercise
Exercise [Pages 1 - 192]

Balbharati solutions for Biology 11th Standard Maharashtra State Board Chapter 15 Excretion and Osmoregulation Exercise [Pages 1 - 192]

Exercise | Q 1. (A) | Page 190

Choose the correct option.

Which one of the following organisms would spend maximum energy in the production of nitrogenous waste?

  • Polar bear

  • Flamingo

  • Frog

  • Shark

Exercise | Q 1. (B) | Page 190

Choose the correct option.

In human beings, uric acid is formed due to metabolism of ______.

  • amino acids

  • fatty acids

  • creatinine

  • nucleic acids

Exercise | Q 1. (C) | Page 190

Choose the correct option.

Visceral layer : Podocytes :: PCT : ________.

  • Cilliated cells

  • Squamous cells

  • Columnar cells

  • Cells with brush border

Exercise | Q 1. (D) | Page 190

Choose the correct option.

Deproteinised plasma is found in ______.

  1. Bowman's capsule
  2. Descending limb
  3. Glomerular capillaries
  4. Ascending limb
Exercise | Q 1. (E) | Page 190

Choose the correct option.

Specific gravity of urine would _______ if level of ADH increases.

  • remain unaffected

  • increases

  • decreases

  • stabilise

Exercise | Q 1. (F) | Page 190

Choose the correct option.

What is micturition?

  • Urination

  • Urine formation

  • Uremia

  • Urolithiasis

Exercise | Q 1. (G) | Page 190

Choose the correct option.

Which one of the following organisms excrete waste through nephridia?

  • Cockroach

  • Earthworm

  • Crab

  • Liver Fluke

Exercise | Q 1. (H) | Page 190

Choose the correct option.

Person suffering from kidney stone is advised not to have tomatoes as it has _______.

  • seeds

  • lycopene

  • oxalic acid

  • sour taste

Exercise | Q 1. (I) | Page 190

Choose the correct option.

Tubular secretion does not take place in ______.

  • DCT

  • PCT

  • collecting duct

  • Henle's loop

Exercise | Q 1. (J) | Page 190

Choose the correct option.

The minor calyx _______.

  • collects urine

  • connects pelvis to ureter

  • is present in the cortex

  • receives column of Bertini

Exercise | Q 1. (K) | Page 190

Choose the correct option.

Which one of the following is not a part of human kidney?

  • Malpighian body

  • Malpighian tubule

  • Glomerulus

  • Loop of Henle

Exercise | Q 1. (L) | Page 190

Choose the correct option.

The yellow colour of the urine is due to presence of ________.

  • uric acid

  • cholesterol

  • urochrome

  • urea

Exercise | Q 1. (M) | Page 190

Choose the correct option.

Hypotonic filtrate is formed in _______.

  • PCT

  • DCT

  • LoH

  • CT

Exercise | Q 1. (N) | Page 190

Choose the correct option.

In reptiles, uric acid is stored in ______.

  • cloaca

  • fat bodies

  • liver

  • anus

Exercise | Q 1. (O) | Page 190

Choose the correct option.

The part of nephron which absorbs glucose and amino acid is ______.

  • collecting tubule

  • proximal tubule

  • Henle's loop

  • DCT

Exercise | Q 1. (P) | Page 190

Choose the correct option.

Bowman’s capsule is located in kidney in the _______.

  • cortex

  • medulla

  • pelvis

  • pyramids

Exercise | Q 1. (Q) | Page 190

Choose the correct option.

The snakes living in desert are mainly ______.

  • aminotelic

  • ureotelic

  • ammonotelic

  • uricotelic

Exercise | Q 1. (R) | Page 190

Choose the correct option.

Urea is a product of breakdown of ______.

  • fatty acids

  • amino acids

  • glucose

  • fats

Exercise | Q 1. (S) | Page 190

Choose the correct option.

Volume of the urine is regulated by ______.

  • aldosterone

  • ADH

  • both aldosterone and ADH

  • none

Exercise | Q 2. (A) | Page 191

Answer the following question.

Doctors say Mr. Shaikh is suffering from urolithiasis. How it could be explained in simple words?

Exercise | Q 2. (B) | Page 191

Answer the following question.

Anitaji needs to micturate several times and feels very thirsty. This is an indication of change in permeability of certain part of nephron. Which is this part?

Exercise | Q 2. (C) | Page 191

Answer the following question.

Effective filtration pressure was calculated to be 20 mmHg; where glomerular hydrostatic pressure was 70 mm of Hg. Which other pressure is affecting the filtration process? How much is it?

Exercise | Q 2. (D) | Page 191

Answer the following question.

Name any one guanotelic organism.

Exercise | Q 2. (E) | Page 191

Answer the following question.

Why are kidneys called 'retroperitoneal'?

Exercise | Q 2. (F) | Page 191

Answer the following question.

State the role of liver in urea production.

Exercise | Q 2. (G) | Page 191

Answer the following question.

Why do we get bad breath after eating garlic or raw onion?

Exercise | Q 3. (A) | Page 191

Answer the following question.

John has two options as a treatment for his renal problem: Dialysis or kidney transplants. Which option should he choose? Why?

Exercise | Q 3. (B) | Page 191

Answer the following question.

Amphibian tadpole can afford to be ammonotelic. Justify.

Exercise | Q 3. (C) | Page 191

Answer the following question.

Birds are uricotelic in nature. Give reason.

Exercise | Q 4. (A) | Page 191

Write the explanation in your words.

Nitya has been admitted to hospital after heavy blood loss. Till proper treatment could be given; how did Nitya's body must have tackled the situation?

Exercise | Q 5. (A) | Page 191

Complete the diagram/chart with correct labels/ information. Write the conceptual details regarding it.

Exercise | Q 5. (B) | Page 191

Complete the diagram/chart with correct labels/ information. Write the conceptual details regarding it.

Exercise | Q 5. (C) | Page 1

Complete the diagram/chart with correct labels/ information. Write the conceptual details regarding it.

Exercise | Q 5. (D) | Page 192

Complete the diagram/chart with correct labels/ information. Write the conceptual details regarding it.

Exercise | Q 5. (E)

Complete the diagram/chart with correct labels/ information. Write the conceptual details regarding it.

Exercise | Q 6 | Page 192

Prove that mammalian urine contains urea.

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Chapter 15: Excretion and Osmoregulation

Exercise
Biology 11th Standard Maharashtra State Board - Shaalaa.com

Balbharati solutions for Biology 11th Standard Maharashtra State Board chapter 15 - Excretion and Osmoregulation

Balbharati solutions for Biology 11th Standard Maharashtra State Board chapter 15 (Excretion and Osmoregulation) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board Biology 11th Standard Maharashtra State Board solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Biology 11th Standard Maharashtra State Board chapter 15 Excretion and Osmoregulation are Excretion and Excretory Products, Excretory System in Human Being, Urine Formation, Concentration of Urine, Composition of Urine, Role of Other Organs in Excretion, Disorders and Diseases.

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