B1 - Cells Flashcards
What can cells either be?
Prokaryotic or Eukaryotic.
What are prokaryotic and eukaryotic cells?
Prokaryotic cells - are small and simple.
Eukaryotic cells - are complex and include all animal and plant cells.
What are prokaryotes and eukaryotes?
Prokaryotes - a prokaryotic cell and is a single-celled organism.
Eukaryotes - are organisms that are made up of eukaryotic cells.
What are the different parts of a cell called?
Subcellular structures.
List the animal cells’ subcellular structures and what they are.
Once that’s done, get a picture of the cell and show where each subcellular structure is.
1 - Nucleus - contains genetic material that controls the activities of the cell.
2 - Cytoplasm - gel-like substances where most of the chemical reactions happen. It contains enzymes that control these chemical reactions.
3 - Cell membrane - holds the cell together and controls what goes in and out.
4 - Mitochondria - these are where most of the reactions for aerobic respiration take place. Respiration transfers energy that the cell needs to work.
5 - Ribosomes - these are where the proteins are made in the cell.
What do plant cells have that animal cells have as well?
Plant cells usually have all the subcellular structures that animal cells have.
What subcellular structures do plant cells have that animal cells DON’T have?
1 - Rigid Cell Wall - made of cellulose. It supports the cell and strengthens it.
2 - Permanent Vacuole - contains cell sap, which is a weak solution of sugar and salts.
3 - Chloroplasts - these are where photosynthesis occurs, which makes food for the plant. They contain a green substance called chlorophyll, which absorbs light needed for photosynthesis.
What are bacteria cells?
They are prokaryotes and are much smaller.
What does a bacterial cell look like?
Once that’s done, get a picture of the bacteria cell and show where each subcellular structure is.
- A cell membrane.
- A cell wall.
- Cytoplasm.
- A singular strand of DNA that floats freely in the cytoplasm.
- They MAY contain one or more small rings of DNA called plasmids.
- However, bacteria DOES NOT have chloroplasts or mitochondria.