6.1
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Define prokaryote:
Organisms whose cells lack a nucleus or membrane bound organelles.
Define eukaryote:
Organisms whose cells have DNA held in their nucleus.
Compare and contrast animal vs plant cells:
Plant cells have a cell wall, animal cells do not. They are both eukaryotes.
Compare and contrast animal vs bacteria cells:
Animal cells have a nucleus, bacteria cells do not. Bacteria cells have a cell wall, animal cells do not.
Compare and contrast bacteria vs plant cells:
They both have cell walls. Plant cells have a nucleus, bacteria cells do not.
What are the components of the cell membrane?
Phospholipids, proteins, cholesterol.
What is the role of lipids in the cell membrane?
To allow passage of several types of lipid soluble molecules, but to also act as a barrier to the entry or exit of charged or polar molecules.
What is the role of proteins in the cell membrane?
Allow the transport of important and needed materials in and out of the cell.
What is the role of carbohydrates in the cell membrane?
Helping cells recognize each other and providing protection for cells.
How do different cells get rid of waste?
Animal: break down with lysosomes, small pieces through cell membrane Plant: Vacuole breaks down, out through cell membrane Bacteria: Enzymes break down big products, small pieces through cell membrane
How do different cells serve as a container?
Animal: cell membrane controls what goes in/out, nutrients move through proteins, membrane encloses smaller compartments Plant: To provide structure to support, to control what goes in/out, encloses smaller compartments Bacteria: Some have 2 layers, controls what goes in+out
How do different cells contain a set of intructions?
Animal: DNA holds all info for building life. Genes are instructions for building molecules. DNA holds info needed to copy itself. Plant: DNA holds all info for building life. Genes are instructions for building molecules. DNA holds info needed to copy itself. Bacteria: DNA holds all info for building life. Genes are instructions for building molecules. DNA holds info needed to copy itself.
How do different cells read the intructions?