Mammalian cell structure and organelle Flashcards
1
Q
Nucleus
A
- Houses genomic DNA
- Site of DNA replication and synthesis of RNA molecules
- Nuclear envelope - inner define nucleus continuous endoplasmic reticulum
- Nuclear pore membrane fuses movement of cytosol
- Nucleolus - dense sub compartment
- Nuclear lamina - intermediate filaments provides mechanical strength
2
Q
Chromatin
A
- Chromatin is a highly condensed and wrapped around histones
- Chromatin condensation to form chromosome
3
Q
Cytosol
A
- Contains many metabolic pathways and it supports organelles
4
Q
Cytoskeleton
A
- Responsible for cell shape, providing mechanical resistance as well as it allows organelles to move within the cell
5
Q
Mitochondrion
A
- Carry out the final oxidation of food molecules to generate energy
6
Q
Cilia
A
- To move a cell or sweep fluid or materials over its surface
7
Q
Perioxisomes
A
- Oxidative breakdown of fatty acids, amino acids and toxic molecules
8
Q
Cytoplasm
A
- All of the cell’s content outside the nucleus
9
Q
Smooth endoplasmic reticulum
A
- Plays a role in lipid biosynthesis, calcium storage and detoxification of toxic compounds
10
Q
Lysosomes
A
- Digestion of large molecules, organelles or microorganisms
11
Q
Rough endoplasmic reticulum
A
- Protein synthesis, modification and sorting/trafficking
12
Q
Main components of endomembrane
A
- Endoplasmic reticulum
- Lysosomes
- Golgi apperatus
- Nucleus
- Vesicles
13
Q
Where is DNA found in mammalian cell?
A
- Mitochondria
- Nucleus
