Cells &Tissues Flashcards
1
Q
Cell boundary
A
- defined by the cell membrane
- sometimes called the plasma membrane or plasmalemma
2
Q
cell membrane
A
double layer of phospholipids molecules
3
Q
Glycocalyx
A
Polysaccharide that can be found on the outer surface of the cell membrane
4
Q
Nucleus
A
control center of the cell
5
Q
Nucleolus
A
- Spherical area within the cell nucleus
- dense region of RNA
- Ribosome formation
6
Q
Chromatin
A
- contain DNA
- Thread-like
7
Q
Cytoplasm
A
cell medium
8
Q
Mitochondria
A
- site of ATP production
- rich in proteins, fats and enzymes
9
Q
Ribosomes
A
- site of protein synthesis
- assembled in the nucleoli
10
Q
Endoplasmic reticulum
A
- interconnected membranes
- transport of materials within the cell
11
Q
RER
A
- ribosomes on tubules
- proteins
12
Q
SER
A
- no ribosomes
- lipid metabolism
13
Q
Golgi apparatus
A
- composed of smooth membranous saccule and associated vesicles
- active in the modification, sorting and transporting of proteins
14
Q
Lysosomes
A
-digestive enzymes
15
Q
Perioxisomes
A
- small spherical structures found in the liver and kidney
- microbodies
- breakdown of toxins
