Organelles (ORAL SCIENCE)

Question 1

Explain Endoplasmic reticulum

Answer 1

smooth or rough ER (70-80S Humans) (30-50S bacteria)

Question 2

Structure and function of ER

Answer 2

Structure and function
* Rough ER*
- Studded with ribosomes
- Process and sorting
- Proteins
* Smooth ER*
- No ribosomes
- Synthesize, FA (fatty acids) and steroids
- Unique enzymes – glucose, detoxify
Ca2+

Question 3

Explain Golgi complex

Answer 3

packages proteins and send to cell

Question 4

Functions of Golgi Complex

Answer 4

Functions of Golgi Complex
* Receive, modify proteins
* Add other subs like CHO (Carbohydrates, lipids etc
* Modifies, sorts, packages

Question 5

Processing and Packaging (golgi complex)

Answer 5

• Synthesised protein -> transport vesicle
  
  • Entry face cisterna
  • Transfer vesicle
  • Secretory vesicle
    Proteins exported from cell (exostoses)

Question 6

What is Mitochondria

Answer 6

creates energy for the cell to utilise

Question 7

What is Mt-DNA

Answer 7

Mitochrondrial DNA

Question 8

Explain Nucleus

Answer 8

• Some cells do not have nucleus,
  Some have more nucleus (muscle cells)
• Nuclear envelope
• Nuclear pore
• Nucleoli – produce ribosomes
• Chromosomes — DNA — 46 total
• 23 pairs, 22 autosomes, 1 pair sex chromosome
• Genes
  Without nucleus won’t be able to divide and or make proteins.