Mitochondria

Question 1

How many membranes in mitochondria?

Answer 1

Double membrane bound organelle

Question 2

Mitochondria discovered by

Answer 2

Kolliker

Question 3

Named as Mitochondria by

Answer 3

Benda

Question 4

Also called bioplast by

Answer 4

Altman

Question 5

Mitochondria visible under microscope when stained by

Answer 5

Janus Green

Question 6

Structure of Mitochondria

Answer 6

Cylindrical or sausage shaped

Question 7

Size of mitochondria

Answer 7

0.2μ-1.0μ → diameter
1.0μ-4.1μ → length

Question 8

Number

Answer 8

Number of mitochondria depends upon functioning or physiological activity of the cell

Question 9

Outer membrane is?

Answer 9

• Smooth
• Protein : lipid
  →60 : 40
• More permeable in nature because of presence of porins

Question 10

Inner membrane is ?

Answer 10

• Folded - these foldings are known as cristae
• Protein : lipid
  80 : 20
• selectively permeable in nature
• rich in cardio lipins

Question 11

Why is mitochondria divided into two compartments?

Answer 11

Because of presence of two membranes.