CELLS

Question 1

Structure of mitochondrai

Answer 1

double membrane

inner membrane folded into cristae to increase SA

Question 2

function of golgi apparatus

Answer 2

modification of lipids and proteins

Question 3

structure and function of endosomes

Answer 3

Membrane bound vesicular and tubular structures

Transport between surface and cytosol by endo/exocytosis

Question 4

structure and function of peroxisomes

Answer 4

Membrane bound organisms
Consume oxygen to remove H+ from organic molecules (defence)
makes reactive oxygen species

Question 5

difference between euchromatin and heterochromatin

Answer 5

euchromatin- loose coil more likely to be expressed

heterochromatin- less likely to be expressed

Question 6

main function of nucleolus

Answer 6

rna synthesis

Question 7

three parts of golgi

Answer 7

cis- receives protein
medial- add sugar
trans- package modified , molecules into vesicles

Question 8

diameter of microtubules and function

Answer 8

25nm
mitosis
component of cilia

Question 9

diameter of intermediate filament and function

Answer 9

10nm

maintain cell integrity , cell to cell contact

Question 10

what is lipofusion

Answer 10

wear and tear

oxidative lipid degeneration

Question 11

main function and structure of cell membrane

Answer 11

partially permeable
maintain structural integrity 
boundary between intra and extracellular
receptors for self / foreign cells
links adjacent cells

Question 12

g coupling

Answer 12

extracellular binding activates transduction pathway and causes a
cascade of internal reactions

Question 13

three types of endocytosis

Answer 13

phagocytosis
pinocytosis
receptor mediated

Question 14

Function of smooth er

Answer 14

Has Enzymes for thr synthesis of lipids