PHYS 261 MOST ASKED QUESTIONS AND 100%
CORRECT ANSWERS
________ are kept within normal range by physiological control mechanisms
which are used if the variable strays too far from its ________.
Regulated variables , set point
Which are used to keep our systems at or near their set point
Negative feedback loops
a reaction to a stimulus
Response
An organelle containing digestive enzymes
Lysosome
Which cytoskeleton components are responsible for the movement of
chromosomes during cell division
Microtubules
Nucleoli function in the production of
RNA for ribosomes
The beta cells of the pancreas produce insulin , a protein hormone . Which
organelle would be found in higher levels in the beta cells ?
Ribosomes
What does cytosine pair with ?
Guanine
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?
Trypsiogen
If a solution has a ph level less that 7 it is ,
Acidic
What is a nucleotide made up of ?
Sugar , base , and phosphate group
When multiple tertiary structures come together it creates what structure
of a protein ?
Quaternary
, 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?
GABA
What type of organic molecule is the prion composed of ?
Protein
Transcription of the DNA triplet sequence ATC yields
UAG
Enzymes that synthesize mRNA from the dna template are called
RNA polymerase
What effect would lack of an enzyme's cofactor have on the enzymes
function?
The enzyme would not be able to function
If the enzyme RNA polymerase was completely inhibited within a cell, it
could not
Form proteins
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?
NAD
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 ?
Kreb cycle
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
Transcription
A cell transports large molecules into the cell by using small vesicles .
What is this process called ?
Endocytosis
what are the two components of extracellular fluid?
plasma and interstitial fluid
CORRECT ANSWERS
________ are kept within normal range by physiological control mechanisms
which are used if the variable strays too far from its ________.
Regulated variables , set point
Which are used to keep our systems at or near their set point
Negative feedback loops
a reaction to a stimulus
Response
An organelle containing digestive enzymes
Lysosome
Which cytoskeleton components are responsible for the movement of
chromosomes during cell division
Microtubules
Nucleoli function in the production of
RNA for ribosomes
The beta cells of the pancreas produce insulin , a protein hormone . Which
organelle would be found in higher levels in the beta cells ?
Ribosomes
What does cytosine pair with ?
Guanine
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?
Trypsiogen
If a solution has a ph level less that 7 it is ,
Acidic
What is a nucleotide made up of ?
Sugar , base , and phosphate group
When multiple tertiary structures come together it creates what structure
of a protein ?
Quaternary
, 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?
GABA
What type of organic molecule is the prion composed of ?
Protein
Transcription of the DNA triplet sequence ATC yields
UAG
Enzymes that synthesize mRNA from the dna template are called
RNA polymerase
What effect would lack of an enzyme's cofactor have on the enzymes
function?
The enzyme would not be able to function
If the enzyme RNA polymerase was completely inhibited within a cell, it
could not
Form proteins
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?
NAD
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 ?
Kreb cycle
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
Transcription
A cell transports large molecules into the cell by using small vesicles .
What is this process called ?
Endocytosis
what are the two components of extracellular fluid?
plasma and interstitial fluid
