Chp 11 Conceptual Flashcards
(47 cards)
Ingroup
The group of interest we are studying
Outgroup
What we use to compare our group of interest to.
Missense mutation
Substitution of a single amino acid for another.
Nonsense mutation
substitution of an amino acid for a STOP codon
Silent mutation
A mutation occurs, but doesn’t affect the amino acid sequence.
List and describe the 4 types of chromosomal mutations
Deletions
Duplications
Inversions
Translocations
List the four classes of organic molecules, as well as their monomers and polymers
- proteins, amino acids –> polypeptide chain
- Lipids, No monomer/polymer
- Carbs, monosaccharide –> polysaccharide
- Nucleic acids, nucleotide –> DNA/RNA
What are the four levels of protein structure?
Primary- linear sequence of amino acids
Secondary- beta pleated sheet or alpha helix
Tertiary- 3D shape of one subunit
Quaternary- multiple protein subunits coming together
What are the input and outputs of dark reactions?
Input: ATP, NADPH, CO2
Outputs: ADP. NADP, sugar
What are the inputs and outputs of light reactions?
Input: light, ADP, NADP, water
Output: ATP, NADPH, oxygen
What is the function of the rough ER?
Receives proteins from ribosomes, modifies them are sends them to golgi.
What is the function of the golgi apparatus?
further modifies the protein, packages and sends it to its final destination.
What is the function of the mitochondria?
Cell respiration.
What is the function of the chloroplast?
Photosynthesis
What is the function of the vacuole?
Hold waste products and water balance.
What did the Miller and Urey experiment prove?
Organic molecules can be created spontaneously from primitive earth atmospheric conditions. Basically, evidence for the origin of life.
What is the function of Lipids?
Long-term energy storage
Insulation
Making the membrane of cells
What makes up the structure of a nucleotide?
A nitrogenous base
a sugar
and a phosphate group
Cells prefer a ____ surface area to volume ratio
high
The phospholipid bilayer contains ____ head groups facing the outside and ____ tails facing inward toward each other
Polar; nonpolar
A cell is placed in a hypotonic solution relative to the cell. Water will move ____ towards the ____ of solute.
Into the cell; higher
Does an exergonic reaction happen spontaneously and release free energy?
Yes
Enzymes can catalyze reactions by
Orienting substrates for a more favorable rxn
Stretching bonds in a substrate, making the substrates unstable
Temporarily adding chemical groups to the substrates
Do enzymes change the overall delta G of a reaction so it can happen faster?
No