tight seals to prevent leaks(tight), allow movement of molecules between neighboring cells(gap), keep neighboring cells attached to eachother(desmosome/anchor)
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15
What is a kinase?
an enzyme that catalyzes the transfer of a phosphate group from ATP to a specified molecule.
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thief
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shark
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shark
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thief
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15
Define the terms autocrine, paracrine and synaptic signaling
Autocrine: a cell targets itself. Paracrine: a cell targets a cell enarby. Synaptic: a chemical signal that travels between nerve cells.
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15
Explain the difference between substrate level phosphorylation and oxidative phosphorylation
Substrate level: synthesis of ATP from substrate to ADP (glycolysis+krebs). Ox Phos: Uses O2 to oxidize NADH in order to generate ATP
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gift
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banana
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15
What is a phosphorylase?
an enzyme which introduces a phosphate group into an organic molecule
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15
Name the 2 functional groups in amino acids.
Amino, Carboxyl
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15
Three consecutive nucleotides in mRNA that specify the insertion of an amino acid
Codon
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trap
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15
Amino acids are linked together to make proteins by removing a molecule of ________ in a process called ____________.
water, dehydration synthesis
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15
Fats are made of an alcohol called __________ and three __________ _________ chains. This is known as a ____________.
glycerol, fatty acids, tricglyceride
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15
What is apoptosis?
Programmed cell death
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15
What type of bond holds amino acids together?
peptide bonds
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25
List the different three components of the cytoskeleton
actin filaments, microtubules, and intermediate filaments.
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15
Explain the difference between the terms endergonic and exergonic
Exergonic: have a negative âG RELEASE free energy= energy is a product. Endergonic: a positive âG requires an input of energy= energy is a reactant