Biology 201 Frampton UNCW Exam 3 Questions With
Complete Solutions
2 stages of gene expression: Correct Answers 1) transcription
(RNA copy made from DNA template)
2) translation (protein synthesized from RNA template)
3 main types of membrane receptors Correct Answers G
protein-coupled, tyrosine kinases, ion channel
3 stages of translation Correct Answers initiation, elongation,
termination
A G protein-coupled receptor: Correct Answers is a plasma
membrane receptor that works with the help of a G protein
A ligand-gated ion channel receptor acts as a: Correct Answers
gate when the receptor changes shape
a photosystem consists of what 2 parts? Correct Answers
reaction-center complex and light-harvesting complexes
a primary electron acceptor in the reaction center excepts the
excited electron from what? Correct Answers chlorophyll a
A receptor tyrosine kinase can Correct Answers trigger multiple
signal transduction pathways at once
A site Correct Answers site holds the tRNA that carries the next
amino acid to be added to the chain
, Accurate translation requires two steps: Correct Answers First:
a correct match between a tRNA and its corresponding amino
acid must be carried out by the enzyme aminoacyl-tRNA
synthetase
Second: a correct match between the tRNA anticodon and an
mRNA codon must take place
An activated hormone-receptor complex can act as a: Correct
Answers transcription factor, turning on specific genes
an electron in a pair of chlorophyll a molecules is boosted to
what? Correct Answers a higher energy level
autotrophs Correct Answers produce organic molecules (such as
starch) from CO2 and other inorganic raw materials; they are the
producers of the biosphere
carbon enters the cycle as ____ and leaves as a sugar named
_______ Correct Answers CO2; glyceraldehyde-3-phospate
(G3P)
cell junctions Correct Answers directly connect cytoplasm of
adjacent cells
cells receiving signals go through 3 processes Correct Answers
reception, transduction, and response
Cellular respiration within mitochondria: Correct Answers
breaks down organic molecules in the presence of O2 to
generate ATP, which powers work
Complete Solutions
2 stages of gene expression: Correct Answers 1) transcription
(RNA copy made from DNA template)
2) translation (protein synthesized from RNA template)
3 main types of membrane receptors Correct Answers G
protein-coupled, tyrosine kinases, ion channel
3 stages of translation Correct Answers initiation, elongation,
termination
A G protein-coupled receptor: Correct Answers is a plasma
membrane receptor that works with the help of a G protein
A ligand-gated ion channel receptor acts as a: Correct Answers
gate when the receptor changes shape
a photosystem consists of what 2 parts? Correct Answers
reaction-center complex and light-harvesting complexes
a primary electron acceptor in the reaction center excepts the
excited electron from what? Correct Answers chlorophyll a
A receptor tyrosine kinase can Correct Answers trigger multiple
signal transduction pathways at once
A site Correct Answers site holds the tRNA that carries the next
amino acid to be added to the chain
, Accurate translation requires two steps: Correct Answers First:
a correct match between a tRNA and its corresponding amino
acid must be carried out by the enzyme aminoacyl-tRNA
synthetase
Second: a correct match between the tRNA anticodon and an
mRNA codon must take place
An activated hormone-receptor complex can act as a: Correct
Answers transcription factor, turning on specific genes
an electron in a pair of chlorophyll a molecules is boosted to
what? Correct Answers a higher energy level
autotrophs Correct Answers produce organic molecules (such as
starch) from CO2 and other inorganic raw materials; they are the
producers of the biosphere
carbon enters the cycle as ____ and leaves as a sugar named
_______ Correct Answers CO2; glyceraldehyde-3-phospate
(G3P)
cell junctions Correct Answers directly connect cytoplasm of
adjacent cells
cells receiving signals go through 3 processes Correct Answers
reception, transduction, and response
Cellular respiration within mitochondria: Correct Answers
breaks down organic molecules in the presence of O2 to
generate ATP, which powers work
