Unit 1: Cell Structure Booklet Key Points Flashcards
What is the function of the cell wall?
Cell wall (1)- Provides support to the cells
What is the function of cellulose?
Cellulose (2)- Structural carbohydrate present in the (plant)cell wal
What is the function of the cell membrane?
Cell membrane(3)- Controls the movement of substances in and out of the cell
What is the function of the nucleus?
Nucleus(4)- Controls cell activities and contains genetic information
What is the function of the vacuole?
Vacuole(5)- Fluid filled sac containing water sugars and salts
What is the function of the cytoplasm?
Cytoplasm(6)- Site of all chemical reactions
What is the function of chloroplasts?
Chloroplasts (7)- Site of photosynthesis
What is the function of the ribosome?
Ribosome(8)- Site of protein synthesis
What is the function of the mitochondria?
Mitochondria(9)- Site of aerobic respiration
What is the function of plasmids?
Plasmids(10)- Small circular DNA
What organelles are present in a plant cell?
Cell wall, cellulose, cell membrane, nucleus, vacuole, cytoplasm, chloroplasts, ribosome, mitochondria.
(1,2,3,4,5,6,7,8,9)
What organelles are present in animal cells?
Cell membrane, nucleus, cytoplasm, ribosome, mitochondria.
(3,4,6,8,9)
What organelles are present in fungal cells?
Contains cell wall, cell membrane, nucleus, vacuole, cytoplasm, ribosome, mitochondria.
(1,3,4,5,6,8,9)
What organelles are present in bacterial cells?
Cell wall, nucleus, cytoplasm, ribosome, plasmids, strand of DNA.
(1,4,6,8,10, strand of DNA)
What is special about plant cell walls?
Only plant cell walls are made from a carbohydrate called cellulose
How does yeast grow and multiply?
Yeast grows by increasing the number of yeast cells by sexual reproduction.
Yeast multiplies by budding
How is total magnification calculated?
Total magnification= eyepiece lens x objective lens
What are cells measured in?
Micrometres
How do you calculate cell size?
- Count how many cells you can see going from one side to another.
- Divide the diameter of the field of view by the number of cells.
What is a common stain used on cells?
Iodine solution
