Cells, Tissues and Organs: Cell Structure Flashcards
What are all living things made out of?
cells
What type of microscopes are used to magnify x1000?
electron microscopes
What are organelles?
components of cells
What organelles do human and animal cells have?
- nucleus
- cytoplasm
- cell membrane
- ribosomes
- mitochondria
What is the function of the nucleus?
contains genetic material which control the activities of the cell
What is the function of the cytoplasm?
place where chemical reactions occur
What is the function of cell membrane?
- selectively permeable
- controls movement of substances in and out of cells
What is the function of mitochondria?
site of aerobic respiration
What is the function of ribosomes?
site of protein synthesis
What organelles do plant and algal cells have?
- cellulose cell wall
- chloroplasts
- permanent vacuole
What is the function of cell wall?
strengthen cell
What is the function of chloroplasts?
- contain chlorophyll for photosynthesis
- absorb light energy to make food
What is the function of permanent vacuole?
- contains cell sap (water and minerals)
- gives support
What type of micro-organisms are bacteria and yeast?
single celled
What organelles do bacteria not/have?
- cytoplasm
- cell membrane
- cell wall
- dont have nucleus but contains genetic material