11th Standard Syllabus & Materials

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TN 11th Tamil இயற்கை வேளாண்மை,சுற்றுச்சூழல் -செய்யுள் - மனோன்மணீயம் Important Questions And Answers Study Material - QB365 Set A

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TN 11th Tamil பீடு பெற நில் - செய்யுள் - குறுந்தொகை Important Questions And Answers Study Material - QB365 Set A

11th Standard English Medium Biology (Zoology) Subject Excretion Book Back 3 Mark Questions with Solution Part - I

Published on: 08/06/2021

QB365 provides detailed and simple solution for every book back questions in class 11 Biology subject.It will helps to get more idea about question pattern in every book back questions with solution.

Download Tamil Nadu 11th Standard Biology question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.

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Std: 11th Standard - Biology

chapter: - Book back Questions

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Questions:

Generic 2

4 x 2 = 8

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?

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

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

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?

Generic 3

1 x 3 = 3

Match each of the following substances. with its mode of transportation in proximal tubular reabsorption.

(a) Na+	Simple diffusion
(b) Glucose	Primary active transport
(c) Urea	Indirect active transport
(d) Plasma	Paracellular movement
(e) Proteins	Facilitated diffusion
(f) Water	Endocytosis

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Answers Key:

Generic 2

4 x 2 = 8

(a) Ion goes to renal vein
(b) It goes to renal pelvis

Henle's loop

1. Hydrostatic/Hydrostatic / Colloidal osmotic pressure maintains ultrafiltration of glomerulus.
2. The Efferent arteriole pressure opposes them.
3. Net filtration pressure = 55 mmHg - 30 mmHg + 15 mmHg = 10mmHg.

1. Podocytes end in foot processes found in the openings between the foot processes (Filtration slits).
2. Malpighian body/renal corpuscle.
3. Blood cells like RBCs, WBCs and platelets.

Generic 3

1 x 3 = 3

(a) Na+	Primary active transport
(b) Glucose	Indirect active transport
(c) Urea	Simple diffusion
(d) Plasma	Facilitated diffusion
(e) Proteins	Endocytosis
(f) Water	Paracellular movement