Cells Flashcards
(11 cards)
1
Q
Smooth endoplasmic reticulum
A
- further away
- devoted to the manufacture of lipids
2
Q
Rough endoplasmic reticulum
A
- closer
- to produce proteins for the rest of the cell to function
- large surface area for synthesis of these proteins
3
Q
Golgi body/apparatus
A
- located near the nucleus
- proteins received from the ER are further processed and sorted for transport to their eventual destinations: lysosomes, the plasma membrane, or secretion
4
Q
Mitochondria
A
- Generates most chemical energy needed to power cell’s biochemical reactions.
- Chemical energy is stored in small molecules called adenosine triphosphate (ATP).
5
Q
Cytoskeleton
A
- Helps maintain cell shape and internal organization
- Provides mechanical support that enables cells to carry out essential functions like division and movement.
6
Q
Plasma membrane
A
- Consists of a lipid bilayer
- Hydrophilic heads attract water into the membrane and are then propelled away by the hydrophobic tails.
7
Q
Nucleolus
A
- Found in the cell’s nucleus
- Where the genes for ribosomal RNA are copied.
8
Q
Nucleus
A
- Contains the cell’s DNA which is organized into chromosomes and is responsible for controlling the cell’s growth and division.
9
Q
Lysosome
A
- Break down excess or worn-out cell parts
- If the cell is damaged beyond repair lysosomes can help it to self-destruct in a process called programmed cell death or apoptosis.
10
Q
80S ribosomes
A
- Found scattered in the cytoplasm of eukaryotic cells
- Site of protein synthesis
11
Q
Exocytosis
A
things (like enzymes and hormones) being released from the cell.
