Paper 11

Question 1

Colloid

Answer 1

A homogenous non crystalline substance consists of large molecules of one substance dispersed in other substance examples : gel, sols, emulsions

Question 2

Automatic bladder

Answer 2

Urinary bladder characterised by hyperactive micturition reflex with loss of voluntary control so, even small amount of urine collected elicits micturition reflex results in emptying

Question 3

Mitochondria

Answer 3

Membrane bound cytoplasmic organelle concerned with production of energy,
Shape - rod or oval
Diameter - 0.5 to 1mu
Double layered outer & inner membrane with matrix inside

Question 4

Mitochondria
-Outer membrane
-inner membrane

Answer 4

-outer membrane continue various enzymes ie, acetyl CoA synthase & glycerophosphate acetyl transferases
-inner membrane folded in the form of shelf like projections like cristae covers iner matrix. Cristae contains many enzymes proteins involved in respi function so cld electron transport system

Question 5

Enzymes & other proteins of respiratory chain or electron transport chain

Answer 5

1) succinic dehydrogenase
2) NADH dehydrogenase
3) cytochrome oxidase
4) cytochrome C
5) ATP synthase

Question 6

Functions of mitochondria

Answer 6

1) production of energy
2) synthesis of ATP
3) apoptosis
4) storage of Ca
5) detoxification

Question 7

Transcription

Answer 7

Means copying, it indicates copying of genetic code from 🧬DNA to RNA

Question 8

Fragility test

Answer 8

Measure the resistance of rbc in hypotonic saline solution done by Nacl solution at 1.2 to 0.2% concentration
Index for fragility : after 20 min
No hemolysis = up to 0.6%
Onset of hemolysis = ~ 0.45% old cells
Complete hemolysis = ~0.35% all cells