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BIO 253 - Quiz 2 questions and answers already graded A+ 2024/2025
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BIO 253 - Quiz 2 questions and answers already graded A+ 2024/2025
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BIO 253 - Quiz 2Define cell
Basic unit of existence
Parts of cell
- Nucleus
- Cytoplasm
- Cell membrane
- Organelles
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Cell membrane
- Selectively permeable
- Made from lipids & protein
- Phospholipid bilayer with tails pointing inward
- Has channels
Cytoplasm
- Jelly-like fluid manufactured from actin
- Cytosol + organelles = fluid portion of mobile
Organelle: Ribosomes
- Participate inside the translation of RNA to proteins
- Attached to RER
- Made in nucleus
Organelle: RER
- Has ribosomes & makes protein
- Next to nucleus
- Rough
, Organelle: SER
- Makes lipids & steroids
- Next to RER
- Shiny & clean
Organelle: Vesicles
- Membrane sac
- Stores/transports
Organelle: Golgi Apparatus
- Stacks of vesicles
- UPS middle answerable for delivery
- Refines, applications, offers proteins made inside the RER
Organelle: Mitochondria
- Makes ATP
- Powerhouse
- Has an internal & outer membrane
Organelle: Lysosomes
- Protects
- Has enzymes to break down material
- Garbage disposal
Centrosomes
- Central body
- Always in pairs
- Sac that carries pairs of centrioles
Cilia
- Hairlike projection on mobile membrane
- Aids in movement & protection
- Antioxidants improve motility
- Found in respiratory tract & fallopian tubes
Flagella
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