Exam 1
Exam 2
Photosynthesis
Cell Signaling
The cytoskeleton
100
What are the five most abundant elements in the body?
H, C, N, P, O
100
Name two differences between prokaryotic cells and eukaryotic cells.
Answers will vary
100
True or false: photosynthesis requires light.
true
100
To respond to a signal, a cell must have a specific (blank) that can detect it.
receptor
100
What are the three components of the cytoskeleton
Microfilaments, Intermediate filaments, Microtubules
200
What is a buffer?
a week acid and its conjugate base that helps maintain constant pH
200
What is the difference between kinetic energy and potential energy
kinetic energy- the energy of motion, potential energy- stored energy
200
Where do the light reactions occur?
thylakoid membrane
200
When the ligand binds to the receptor what happens to the receptor? Is this reversible or irreversible?
the receptor changes shape and it is reversible
200
What are microfilaments made of?
actin
300
What is proteins monomer and what type of bonds hold this together?
amino acids and peptide bonds
300
Entropy always (blank) in nature.
increases
300
What is the first chemical reaction of photosynthesis?
the oxidation of the reaction center
300
What are the 4 types of cell signaling? Describe them.
Endocrine, paracrine, autocrine, juxtacrine
300
What are motor proteins powered by?
ATP
400
What are the 4 key features of DNA?
double stranded helix, uniform diameter, right handed, antiparallel
400
Where does glycolysis occur at in the cell?
cytosol
400
What donated an electron to the ETC during the reduction of the reaction center?
H2O
400
Name the three types of plasma membrane receptors.
G protein-coupled receptors (GPCRs), Protein Kinase Receptors, Ion Channels
400
What are the two types of motor proteins?
dynein and kinesin
500
What is a spliceosome?
cuts pre-mRNA, releases introns, splices exons together
500
What is substrate-level phosphorylation?
enzyme- catalyzed transfer of a phosphate group from an organic donor molecule to ADP to form ATP.
500
The Calvin Cycle is consist of three processes, name them.
Carboxylation, Reduction to produce carbohydrates, and regeneration of RuBP.
500
What do GPCRs bind to?
heterotrimeric G protein
500
What binds to actin filaments to allow the filaments to slide relative to one another?
myosin
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