plant cells Flashcards
1
Q
what is a plant cell
A
- eukaryotic cell, has extra structures of the animal cell
2
Q
cell wall
A
- made of cellulose
- protects and supports each cell
3
Q
plasma membrane
A
- provides protection for the cell
- regulates materials going in and out of the cell
4
Q
smooth endoplasmic reticulum
A
- made of cisternae, no ribosomes
- makes lipids and contains enzymes to detoxify
5
Q
rough endoplasmic reticulum
A
- made of cisternae
- studded with ribosomes
- proteins made on the ribosomes are sent to golgi body
6
Q
golgi body
A
- stack of membrane flattened sacs
- newly made proteins are received from the rough ER and are packaged into vesicles to be transported into where they are needed
7
Q
nucleolus
A
- dense spherical structure in the nucleus
- makes RNA and ribosomes
8
Q
mitochondrion
A
- double membrane bound organelle with an inner membrane between them
- generates energy needed for chemical reactions
- site of final stages of cellular respiration
9
Q
vacuole
A
- membrane bound sac in cytoplasm which contains cell sap
- maintains turgor to ensure rigid framework in the cell
10
Q
chloroplast
A
- double membrane filled with stoma
- inner membrane is filled with flattened sacs called thykaloids
- site of photosynthesis
11
Q
stack of thykaloids
A
- granum containing chlorophyll pigment
12
Q
tonoplast
A
- partially permeable membrane of the vacuole to allow small molecules to pass through
13
Q
amlyoplast
A
- double membrane bound sac containing starch granules
- responsible for the synthesis and storage of starch granules
14
Q
plasmodesmata
A
- microscopic channels which cross the cell walls of plant cells
- allows transport and communication between individual plant cells
15
Q
pits
A
- pores in the cell wall of the xylem
- allows water to enter and leave xylem vessels
