LEC 11 CELL PHYSIOLOGY

Question 1

List of cytoplasmic membranous organelles

Answer 1

Smooth/rough ER, lysosome, Golgi complex, peroxisome, mitochondria

Question 2

Cytoplasmic non-membranous Organelles

Answer 2

R-C-C
Ribosome, centrosome, Centrioles

Question 3

What does Mitochondria use to produce energy?

Answer 3

Oxygen

Question 4

What’s the main function of ‘Peroxisomes’?

Answer 4

Detox - Make hydrogen peroxide

Question 5

What’s the Endomembrane system?

Answer 5

The package/exchange system of cell

Question 6

List Organelles of the endomembrane system??

Answer 6

ER, Golgi complex, lysosome, Nuclear envelope

Question 7

Functions of Smooth and Rough ER

Answer 7

Smooth - stores calcium
Rough - ribosome site/ protein synthesis

Question 8

Function of Golgi complex?

Answer 8

Package protein

Question 9

Lysosomes function

Answer 9

Autophagy - digest organelle/ cell

Question 10

What’s the outcome of excess lysosomes?

Answer 10

Tay Sachs disease > Attacks normal cells
(Death)

Question 11

3 parts of cytoskeleton
(Made of and functions)

Answer 11

Actin filaments:
-Actin protein
-support
-forms microvilli

Intermediate filaments:
-Keratin
-structure

Microtubules:
-Tubulin
-structure
-moves cillia&flagella

Question 12

Centrioles

Answer 12

-Forms centrosome
-cell division

Made of microtubule 9x3 sets tubes

Question 13

Cillia & flagella

Answer 13

Made by/Made of:
-Centrioles
-Microtubules - 9+2 tubes

Question 14

Three (3) main parts of nucleus

Answer 14

1. Nuclear envelope
2. DNA/proteins
3. Nucleolus (center- ribosome site)

Question 15

What’s the nuclear envelope?

Answer 15

Surrounds nucleus

-Has nuclear pores (in or out)

Question 16

Chromatin & Chromosomes ratio

Answer 16

Chromatin: Millions - Not visible
Chromosomes: 23 pair -Visible

Question 17

Note:
Most human cells have two (2) sets of 23 chromosomes