cellular anatomy and structure Flashcards
1
Q
cellular membrane
A
the outermost structure of the cell that forms an envelope around all of the intracellular parts
2
Q
centriole
A
- 2 cylindrical structures found near the nucleus and Golgi apparatus
- lie perpendicular to each other
- important during the mitosis process
3
Q
cytoplasm
A
a colorless fluid that gives the cell its mass and suspends all of the intracellular organelles
4
Q
Golgi apparatus
A
a specialized series of flattened sacs and vesicles usually found near the nucleus which acts to ‘package’ cellular products
5
Q
Lysosome
A
- small, enzyme filled sacs
- enzymes dissolve particles they come in contact with
6
Q
mitochondrion
A
- the powerhouse of the cell
- has a double membrane; the inner membrane extends into folds called cristae
7
Q
nuclear membrane
A
a membrane which forms a porous envelope around the nucleus
8
Q
nucleolus
A
small, dense structures within the nucleus that are made up of RNA and protein
9
Q
nucleus
A
- a large, intracellular organelle that’s formed of loosely woven chromatin
- the chromatin is made up of DNA
10
Q
ribosomes
A
- tiny, spherical organelles that attach to the membrane of the R.E.R.
- responsible for the production of proteins
11
Q
R.E.R.
A
- network of canals and flattened sacs throughout the cytoplasm of the cell; appears rough due to the ribosomes attached to it
12
Q
smooth endoplasmic reticulum
A
a complex network of canals and flattened sacs throughout the cytoplasm of the cell; there are no ribosomes, therefore it is ‘smooth’
13
Q
vacuole
A
- small, empty, cytoplasmic spaces within the cell
- may contain for or waste products to be removed from the cell
