Tamil Nadu Board of Secondary EducationHSC Science Class 11th
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Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Zoology Answers Guide chapter 8 - Excretion [Latest edition]

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Class 11th Zoology Answers Guide - Shaalaa.com
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Chapter 8: Excretion

Evaluation
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Evaluation [Pages 150 - 152]

Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Zoology Answers Guide Chapter 8 ExcretionEvaluation [Pages 150 - 152]

Evaluation | Q 1. | Page 150

Arrange the following structures in the order that a drop of water entering the nephron would encounter them.

  1. Afferent arteriole 
  2. Bowman’s capsule 
  3. Collecting duct 
  4. Distal tubule
  5. Glomerulus
  6. Loop of Henle
  7. Proximal tubule 
  8. Renal pelvis
Evaluation | Q 2. | Page 150

Name the three filtration barriers that solutes must come across as they move from plasma to the lumen of Bowman’s capsule. What components of the blood are usually excluded by these layers?

Evaluation | Q 3. | Page 150

What forces promote glomerular filtration? What forces opposes them? What is meant by net filtration pressure?

Evaluation | Q 4. | Page 150

Identify the following structures and explain their significance in renal physiology?

  1. Juxtaglomerular apparatus
  2. Podocytes
  3. Sphincters in the bladder
Evaluation | Q 5. | Page 150

In which segment of the nephron most of the re-absorption of substances takes place?

Evaluation | Q 6. | Page 151

When a molecule or ion is reabsorbed from the lumen of the nephron, where does it go? If a solute is filtered and not reabsorbed from the tubule, where does it go?

Evaluation | Q 7. | Page 151

Which segment is the site of secretion and regulated reabsorption of ions and pH homeostasis?

Evaluation | Q 8. | Page 151

What solute is normally present in the body to estimate GFR in humans?

Evaluation | Q 9. | Page 151

Which part of the autonomic nervous system is involved in micturition process?

Evaluation | Q 10. | Page 151

If the afferent arteriole of the nephron constricts, what happens to the GFR in that nephron? If the efferent arteriole constricts what happens to the GFR in that nephron? Assume that no auto regulation takes place.

Evaluation | Q 11. | Page 151

Concentration of urine depends upon which part of the nephron 

  • Bowman’s capsule

  • Length of Henle’s loop

  • P.C.T

  • Network of capillaries arising from glomerulus

Evaluation | Q 12. | Page 151

If Henle’s loop were absent from mammalian nephron, which one of the following is to be expected?

  • There will be no urine formation

  • There will be hardly any change in the quality and quantity of urine formed

  • The urine will be more concentrated

  • The urine will be more dilute

Evaluation | Q 13. | Page 151

What will happen if the stretch receptors of the urinary bladder wall are totally removed?

  • Micturition will continue

  • Urine will be continue to collect normally in the bladder

  • There will be micturition

  • Urine will not collection the bladder

Evaluation | Q 14. | Page 151

The end product of Ornithine cycle is ______.

  • carbon dioxide

  • uric acid

  • urea

  • ammonia

Evaluation | Q 15. | Page 151

Identify the wrong match

  • Bowman’s capsule - Glomerular filteration

  • DCT - Absorption of glucose

  • Henle’s loop - Concentration of urine

  • PCT - Absorption of Na+ and K+ ions

Evaluation | Q 16. | Page 151

Podocytes are the cells present on the ______.

  • Outer wall of Bowman’s capsule

  • Inner wall of Bowman’s capsule

  • Neck of nephron

  • Wall glomerular capillaries

Evaluation | Q 17. | Page 151

Glomerular filtrate contains ______.

  • Blood without blood cells and proteins 

  • Plasma without sugar

  • Blood with proteins but without cells

  • Blood without urea

Evaluation | Q 18. | Page 151

Kidney stones are produced due to deposition of uric acid and ______.

  • silicates

  • minerals

  • calcium carbonate

  • calcium oxalate

Evaluation | Q 19. | Page 151

Animal requiring minimum amount of water to produce urine are ______.

  • ureotelic

  • ammonotelic

  • uricotelic

  • chemotelic

Evaluation | Q 20. | Page 152

Aldosterone acts at the distal convoluted tubule and collecting duct resulting in the absorption of water through ______.

  • Aquaphorins

  • spectrins

  • GLUT

  • Chloride channels

Evaluation | Q 21. | Page 152

The hormone which helps in the reabsorption of water in kidney tubules is ______.

  • cholecystokinin

  • angiotensin II

  • antidiuretic hormone

  • pancreozymin

Evaluation | Q 22. | Page 152

Malpighian tubules remove excretory products from ______.

  • mouth

  • oesophagus

  • haemolymph

  • alimentary canal.

Evaluation | Q 23. a. | Page 152

Identify the biological term

A liquid which gathers in the bladder.

  • Excretion

  • glomerulus

  • urinary bladder

  • glomerular filtrate

  • ureters

  • urine

  • Bowman’s capsule

  • urinary system

  • reabsorption

  • micturition

  • osmosis

  • proteins

Evaluation | Q 23. b. | Page 152

Identify the biological term

Produced when blood is filtered in a Bowman’s capsule.

  • Excretion

  • glomerulus

  • urinary bladder

  • glomerular filtrate

  • ureters

  • urine

  • Bowman’s capsule

  • urinary system

  • reabsorption

  • micturition

  • osmosis

  • proteins

Evaluation | Q 23. c. | Page 152

Identfiy the biological term

Temporary storage of urine.

  • Excretion

  • glomerulus

  • urinary bladder

  • glomerular filtrate

  • ureters

  • urine

  • Bowman’s capsule

  • urinary system

  • reabsorption

  • micturition

  • osmosis

  • proteins

Evaluation | Q 23. d. | Page 152

Identify the biological term

A ball of inter twined capillaries.

  • Excretion

  • glomerulus

  • urinary bladder

  • glomerular filtrate

  • ureters

  • urine

  • Bowman’s capsule

  • urinary system

  • reabsorption

  • micturition

  • osmosis

  • proteins

Evaluation | Q 23. e. | Page 152

Identify the biological term

Removal of unwanted substances from the body.

  • Excretion

  • glomerulus

  • urinary bladder

  • glomerular filtrate

  • ureters

  • urine

  • Bowman’s capsule

  • urinary system

  • reabsorption

  • micturition

  • osmosis

  • proteins

Evaluation | Q 23. f. | Page 152

Identify the biological term

Each contains a glomerulus.

  • Excretion

  • glomerulus

  • urinary bladder

  • glomerular filtrate

  • ureters

  • urine

  • Bowman’s capsule

  • urinary system

  • reabsorption

  • micturition

  • osmosis

  • proteins

Evaluation | Q 23. g. | Page 152

Identify the biological term

Carry urine from the kidneys to the bladder.

  • Excretion

  • glomerulus

  • urinary bladder

  • glomerular filtrate

  • ureters

  • urine

  • Bowman’s capsule

  • urinary system

  • reabsorption

  • micturition

  • osmosis

  • proteins

Evaluation | Q 23. h. | Page 152

Identify the biological term

Scientific term for urination.

  • Excretion

  • glomerulus

  • urinary bladder

  • glomerular filtrate

  • ureters

  • urine

  • Bowman’s capsule

  • urinary system

  • reabsorption

  • micturition

  • osmosis

  • proteins

Evaluation | Q 23. i. | Page 152

Identify the biological term

Regulation of water and dissolved substances in blood and tissue fluid.

  • Excretion

  • glomerulus

  • urinary bladder

  • glomerular filtrate

  • ureters

  • urine

  • Bowman’s capsule

  • urinary system

  • reabsorption

  • micturition

  • osmosis

  • proteins

Evaluation | Q 23. j. | Page 152

Identify the biological term

Consists of the kidneys, ureters and bladder.

  • Excretion

  • glomerulus

  • urinary bladder

  • glomerular filtrate

  • ureters

  • urine

  • Bowman’s capsule

  • urinary system

  • reabsorption

  • micturition

  • osmosis

  • proteins

Evaluation | Q 23. k. | Page 152

Identify the biological term

Removal of useful substances from glomerular filtrate.

  • Excretion

  • glomerulus

  • urinary bladder

  • glomerular filtrate

  • ureters

  • urine

  • Bowman’s capsule

  • urinary system

  • reabsorption

  • micturition

  • osmosis

  • proteins

Evaluation | Q 23. l. | Page 152

Identify the biological term

What solute the blood contains that are not present in the glomerular filtrate?

  • Excretion

  • glomerulus

  • urinary bladder

  • glomerular filtrate

  • ureters

  • urine

  • Bowman’s capsule

  • urinary system

  • reabsorption

  • micturition

  • osmosis

  • proteins

Evaluation | Q 24. | Page 152

With regards to toxicity and the need for dilution in water, how different are ureotelic and uricotelic excretions? Give examples of animals that use these types of excretion?

Evaluation | Q 25. | Page 152

Differentiate protonephridia from metanephridia.

Evaluation | Q 26. | Page 152

What is the nitrogenous waste produced by amphibian larvae and by the adult animal?

Evaluation | Q 27. | Page 152

How is urea formed in the human body?

Evaluation | Q 28. | Page 152

Differentiate cortical from medullary nephrons.

Evaluation | Q 29. | Page 152

What vessels carry blood to the kidneys? Is this blood arterial or venous?

Evaluation | Q 30. | Page 152

Which vessels drain filtered blood from the kidneys?

Evaluation | Q 31. | Page 152

What is tubular secretion? Name the substances secreted through the renal tubules.

Evaluation | Q 32. | Page 152

How are the kidneys involved in controlling blood volume? How is the volume of blood in the body related to arterial pressure?

Evaluation | Q 33. | Page 152

Name the three main hormones involved in the regulation of the renal function?

Evaluation | Q 34. | Page 152

What is the function of antidiuretic hormone? Where is it produced and what stimuli increases or decreases its secretion?

Evaluation | Q 35. | Page 152

What is the effect of aldosterone on kidneys and where is it produced?

Evaluation | Q 36. | Page 152

Explain the heart’s role in secreting a hormone that regulates renal function? What hormone is this?

Chapter 8: Excretion

Evaluation
Class 11th Zoology Answers Guide - Shaalaa.com

Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Zoology Answers Guide chapter 8 - Excretion

Tamil Nadu Board Samacheer Kalvi solutions for Class 11th Zoology Answers Guide chapter 8 (Excretion) 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 Tamil Nadu Board of Secondary Education Class 11th Zoology Answers Guide solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com provide such solutions so that students can prepare for written exams. Tamil Nadu Board Samacheer Kalvi textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 11th Zoology Answers Guide chapter 8 Excretion are Modes of Excretion: Ammonotelism, Ureotelism, and Uricotelism, Human Excretory System, Function of the Kidney - “Production of Urine”, Regulation of Kidney Function, Concept of Micturition, Accessory Excretory Organs, Haemodialysis, Common Disorders of the Urinary System.

Using Tamil Nadu Board Samacheer Kalvi Class 11th solutions Excretion exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Tamil Nadu Board Samacheer Kalvi Solutions are important questions that can be asked in the final exam. Maximum students of Tamil Nadu Board of Secondary Education Class 11th prefer Tamil Nadu Board Samacheer Kalvi Textbook Solutions to score more in exam.

Get the free view of chapter 8 Excretion Class 11th extra questions for Class 11th Zoology Answers Guide and can use Shaalaa.com to keep it handy for your exam preparation

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