PHYS 261 MOST ASKED QUESTIONS AND 100%
CORRECT ANSWERS
Regulated variables , set point
________ are kept within normal range by physiological control mechanisms which
are used if the variable strays too far from its ________.
Negative feedback loops
Which are used to keep our systems at or near their set point
Response
a reaction to a stimulus
Lysosome
An organelle containing digestive enzymes
Microtubules
Which cytoskeleton components are responsible for the movement of chromosomes
during cell division
RNA for ribosomes
Nucleoli function in the production of
Ribosomes
The beta cells of the pancreas produce insulin , a protein hormone . Which organelle
would be found in higher levels in the beta cells ?
Guanine
What does cytosine pair with ?
Trypsiogen
Trypsin is an active protein needed for protein digestion. Trypsin has to be activated
since our body produces it in its inactive form . Which of the following is the inactive
form of trypsin?
Acidic
If a solution has a ph level less that 7 it is ,
Sugar , base , and phosphate group
What is a nucleotide made up of ?
Quaternary
, When multiple tertiary structures come together it creates what structure of a
protein ?
GABA
A depressed person is prescribed antidepressants. This antidepressant works by
replenishing an amino acid that is release by nerve cells and functions as a
neurotransmitter in our body . Which amino acid did the drug replenish?
Protein
What type of organic molecule is the prion composed of ?
UAG
Transcription of the DNA triplet sequence ATC yields
RNA polymerase
Enzymes that synthesize mRNA from the dna template are called
The enzyme would not be able to function
What effect would lack of an enzyme's cofactor have on the enzymes function?
Form proteins
If the enzyme RNA polymerase was completely inhibited within a cell, it could not
NAD
When an indirect form of energy is released during reactions , it is captured by
energy carrying molecules called coenzymes . What would be considered a
coenzyme?
Kreb cycle
During starvation your body will take the store fats and break it down to form acetyl
coa to make atp , what pathway will the acetyl coa enter ?
Transcription
1. Transcriptional factors bind " tata " box 2. Enzyme binds promoter 3. nucleotides
complimentary to dna are placed 4. Exons are put together 5. Poly " A" tails are put
together
Endocytosis
A cell transports large molecules into the cell by using small vesicles . What is this
process called ?
plasma and interstitial fluid
what are the two components of extracellular fluid?
graded potential
CORRECT ANSWERS
Regulated variables , set point
________ are kept within normal range by physiological control mechanisms which
are used if the variable strays too far from its ________.
Negative feedback loops
Which are used to keep our systems at or near their set point
Response
a reaction to a stimulus
Lysosome
An organelle containing digestive enzymes
Microtubules
Which cytoskeleton components are responsible for the movement of chromosomes
during cell division
RNA for ribosomes
Nucleoli function in the production of
Ribosomes
The beta cells of the pancreas produce insulin , a protein hormone . Which organelle
would be found in higher levels in the beta cells ?
Guanine
What does cytosine pair with ?
Trypsiogen
Trypsin is an active protein needed for protein digestion. Trypsin has to be activated
since our body produces it in its inactive form . Which of the following is the inactive
form of trypsin?
Acidic
If a solution has a ph level less that 7 it is ,
Sugar , base , and phosphate group
What is a nucleotide made up of ?
Quaternary
, When multiple tertiary structures come together it creates what structure of a
protein ?
GABA
A depressed person is prescribed antidepressants. This antidepressant works by
replenishing an amino acid that is release by nerve cells and functions as a
neurotransmitter in our body . Which amino acid did the drug replenish?
Protein
What type of organic molecule is the prion composed of ?
UAG
Transcription of the DNA triplet sequence ATC yields
RNA polymerase
Enzymes that synthesize mRNA from the dna template are called
The enzyme would not be able to function
What effect would lack of an enzyme's cofactor have on the enzymes function?
Form proteins
If the enzyme RNA polymerase was completely inhibited within a cell, it could not
NAD
When an indirect form of energy is released during reactions , it is captured by
energy carrying molecules called coenzymes . What would be considered a
coenzyme?
Kreb cycle
During starvation your body will take the store fats and break it down to form acetyl
coa to make atp , what pathway will the acetyl coa enter ?
Transcription
1. Transcriptional factors bind " tata " box 2. Enzyme binds promoter 3. nucleotides
complimentary to dna are placed 4. Exons are put together 5. Poly " A" tails are put
together
Endocytosis
A cell transports large molecules into the cell by using small vesicles . What is this
process called ?
plasma and interstitial fluid
what are the two components of extracellular fluid?
graded potential
