Lab 2 cell Flashcards
1
Q
function of Nucleus
A
-control center
2
Q
nuclear envelope
nucleus
A
two parallel membranes separated by fluid filled space
- protection of nucleus
3
Q
nucleolus
A
“little nucleus”
- in the center of nucleus
- contains parts of several chromosomes
- site of ribosome subunit manufacture
4
Q
chromatin
A
- nucleus contains chromatin
- contains DNA and histone proteins
5
Q
cytoplasm
A
parts of the cell between plasma membrane and nucleus
- contains many organelles
6
Q
cytosol
A
jelly-like, fluid containing substance within the cell
- consists of water, ions, and enzymes
- makes up half of the volume of the cytoplasm
- fluid in which other cytoplasmic elements are suspended
7
Q
Rough endoplasmic reticulum
A
- helps ribosomes with protein synthesis
synthesis of membrane proteins, secretory proteins and hydrolytic enzymes - formation of transport vesicles
8
Q
Smooth endoplasmic reticulum
A
- lipid metabolism
9
Q
ribosomes
A
polypeptide (protein) synthesis
10
Q
golgi apparatus
A
- process, packages, and ships proteins
processing (modification and temp storage) and transport of macromolecules (produced by ribosomes) - formation of lysosomes and transport vesicles
11
Q
mitochondria
A
- “power plant of cells”
- Generates ATP
12
Q
Lysosomes
A
- digestion of nutrients, bacteria, and damaged organelles
- destruction of certain cells during embryonic developments
13
Q
vesicles
A
small liquid filled sac
- transport vehicle and storage
14
Q
vacuoles (big)
A
- digestion (like lysosome)
- storage of chemicals
- cell enlargement
- water balance
15
Q
peroxisome
A
diverse metabolic process, with breakdown of H2O2 by-products
- detoxification of free radicals
