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BIO Unit 2

How does an Enzyme accelerate a reaction?

Bringing molecules closer

Competitive inhibitor

A molecule that also attaches to receptor

Allosteric Activator

Chemical that makes it harder or easier for a signal to attach to enzyme

What should an active site molecule have?

Ability to hydrogen bond (polarity)

Shape of RNA

irregular 3D, Linear

Shape of DNA

Double helix

A single strand of RNA can form base pairs with...

itself, another strand of RNA, a single strand of DNA

An A-T base pair and a C-G base pair have

the same size

Complementary strand of 5'-GGCAT-3'

5'-ATGCC-3'

What movement is most rapid in membranes?

Lateral diffusion of a membrane lipid

Characteristics of substance that can get through lipid bilayer

Small, Nonpolar

Where do solutes move to in diffusion

Toward Solvent/Where there is less Solute

What do Prokaryotes not have?

Nucleus memebrane/Lysosomes

Nucleus

Storage of DNA/RNA

Mitochondrian

Generate chemical energy

Cell Wall

Protection and Structure

Plasma Membrane

Maleable/Structure

Peroxisome

Generate Hydrogen peroxide

Ribosomes

Translate genetic code

Lysosomes

Break down excess/worn out cell parts

Vacuole

Expelle excess water

Cytoskeleton

Organization/Framework

Smooth ER

Manufacture Lipids

Rough ER

Produce Protiens

Chloroplasts

Produce energy through photosynthesis

Golgi Apparatus

Process protiens further (add C groups)

Cell Wall make up

Pectin Polysacchirides

Plasma Membrane makeup

Protiens and lipid bilayer

Tight Junctions

Regulate lipid bilayer

Gap Junctions

Permit direct cell-cell ion transfers (communication)

Microtubule

Hollow rods that make up cytoskeleton (kinesins walk along)

Desmosomes

Attachment of two cells

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