Cell Biology

The contractile ________ are aligned in ________ and ________ striated muscles but not in ________ ...

The contractile ________ are aligned in ________ and ________ striated muscles but not in ________ ...

The contractile ________ are aligned in ________ and ________ striated muscles but not in ________ muscles.
 
  Fill in the blank with correct word.

matt898967   30   1 Reply

canelo

The control of the temperature of the body is an example of which of the following?

The control of the temperature of the body is an example of which of the following?

The control of the temperature of the body is an example of which of the following?
  a. homeostatic mechanism
  b. positive feedback system
  c. endocrine function
  d. negative feedback system
  e. both homeostatic and nega

rickyfa18   52   2 Replies

rickyfa18

The control of voluntary movement can be divided into what three steps?

The control of voluntary movement can be divided into what three steps?

The control of voluntary movement can be divided into what three steps?

colleen   437   2 Replies

colleen

The conversion of amino acids to carbohydrates is an example of

The conversion of amino acids to carbohydrates is an example of

The conversion of amino acids to carbohydrates is an example of
A) amination.
B) gluconeogenesis.
C) substrate-level phosphorylation.
D) beta-oxidation.
E) electron transport.

cuchillo   950   3 Replies

archie90

The conversion of fibrinogen to fibrin is catalyzed by the enzyme

The conversion of fibrinogen to fibrin is catalyzed by the enzyme

The conversion of fibrinogen to fibrin is catalyzed by the enzyme
A) fibrinogen-converting enzyme.
B) plasmin.
C) factor VIII.
D) thrombin.
E) prothrombinase.

nite_n_day   1252   2 Replies

nite_n_day

The conversion of fructose 1,6-bisphosphate to fructose 6-phosphate is catalyzed by a fructose ...

The conversion of fructose 1,6-bisphosphate to fructose 6-phosphate is catalyzed by a fructose ...

The conversion of fructose 1,6-bisphosphate to fructose 6-phosphate is catalyzed by a fructose 1,6-bisphosphatase and is one of the final steps in gluconeogenesis. Which of the following molecules is an allosteric activator of this enzyme?
 

y52qiu   61   2 Replies

y52qiu

The conversion of glyceraldehyde 3-phosphate to 1,3 bisphosphoglycerate in step 6 of glycolysis ...

The conversion of glyceraldehyde 3-phosphate to 1,3 bisphosphoglycerate in step 6 of glycolysis ...

The conversion of glyceraldehyde 3-phosphate to 1,3 bisphosphoglycerate in step 6 of glycolysis generates a high energyphosphoanhydride bond. Which of the following best describes what happens to that bond in step 7?
 
  (a) It is hydrolyz

reeko   44   1 Reply

achurch

The conversion of light into chemical energy is called photoautotrophy.

The conversion of light into chemical energy is called photoautotrophy.

The conversion of light into chemical energy is called photoautotrophy.
[True or False]

kourtni   33   2 Replies

kourtni

The conversion of pyruvic acid to acetyl-CoA can be described as __________, because a molecule of C

The conversion of pyruvic acid to acetyl-CoA can be described as __________, because a molecule of C

The conversion of pyruvic acid to acetyl-CoA can be described as __________, because a molecule of CO2 is produced as a by-product.
A) decarboxylation
B) amination
C) respiration
D) oxidation
E) phosphorylation

cuchillo   393   3 Replies

archie90

The cooperative activity of drugs such as beta-lactam antibiotics and clavulanic acid, a β-lactamase

The cooperative activity of drugs such as beta-lactam antibiotics and clavulanic acid, a β-lactamase

The cooperative activity of drugs such as beta-lactam antibiotics and clavulanic acid, a β-lactamase inhibitor, is known as
A) cross resistance.
B) antimetabolism.
C) synergism.
D) selective toxicity.
E) chemotherapy.

cuchillo   304   3 Replies

archie90

The coordinated response of cells to an array of different signals from the environment is known as ...

The coordinated response of cells to an array of different signals from the environment is known as ...

The coordinated response of cells to an array of different signals from the environment is known as ________.
 
  Fill in the blank with correct word.

mhoss814   36   1 Reply

PrincessAwesome

The core genome of a prokaryotic species is the genomic content that is

The core genome of a prokaryotic species is the genomic content that is

The core genome of a prokaryotic species is the genomic content that is
A) unique compared to all other prokaryotes.
B) expressed under all environmental conditions.
C) shared between all other prokaryotes.
D) shared between all strains of a spec

mkendrick08   47   1 Reply

dsims_maniac

The core histones are small, basic proteins that have a globular domain at the C-terminus and a ...

The core histones are small, basic proteins that have a globular domain at the C-terminus and a ...

The core histones are small, basic proteins that have a globular domain at the C-terminus and a long, extended conformation at the N-terminus. Which of the following is not true of the N-terminal tail of these histones?
 
  (a) It is subje

paw2323   36   2 Replies

paw2323

The core of an intestinal microvillus is composed of a tight bundle of ________. (Fill in the blank)

The core of an intestinal microvillus is composed of a tight bundle of ________. (Fill in the blank)

The core of an intestinal microvillus is composed of a tight bundle of ________.
 
  Fill in the blank with correct word.

Kenzie_colton1   21   1 Reply

poot10

The coronary vessels (Multiple Choice)

The coronary vessels (Multiple Choice)

The coronary vessels
  a. supply and drain the heart muscle.
  b. bypass the heart ventricles.
  c. send blood directly to the lungs.
  d. are not really necessary because the heart can get its blood supply from the inside.
 

bonge4379   45   2 Replies

bonge4379

The corpus cavernosum, a mass of tissue rich in venous channels, is present in the:

The corpus cavernosum, a mass of tissue rich in venous channels, is present in the:

The corpus cavernosum, a mass of tissue rich in venous channels, is present in the:
 
  a. Epididymis
  b. Penis
  c. Prostate gland
  d. Rete testis
  e. Vas deferens

tjjt   43   1 Reply

nobutohara

The corpus luteum degenerates once fertilization occurs.

The corpus luteum degenerates once fertilization occurs.

The corpus luteum degenerates once fertilization occurs.
A) True
B) False

...hello   118   1 Reply

venusky

The corpus luteum in a nonpregnant woman usually lasts about

The corpus luteum in a nonpregnant woman usually lasts about

The corpus luteum in a nonpregnant woman usually lasts about
A) 7 days.
B) 12 days.
C) 3 days.
D) 28 days.
E) 3 months.

colleen   662   1 Reply

ehd123

The correct charging of an amino acid to a tRNA is catalyzed by?

The correct charging of an amino acid to a tRNA is catalyzed by?

The correct charging of an amino acid to a tRNA is catalyzed by
:
a) the ribosome
b)initiation factors
c)transcription factors
d)release factors
e) None of the above

daveknockwin   745   1 Reply

miggybling

The correct descriptive statement of a meiotic event is

The correct descriptive statement of a meiotic event is

The correct descriptive statement of a meiotic event is
a) Homologous chromosomes separate during anaphase 1 while sister chromatids separate during anaphase 2
b) Sister chromatids separate during anaphase 1 while homologous chromatids sepe

kasy110   2708   3 Replies

Bio_World100

The correct folding of proteins is necessary to maintain healthy cells and tissues. Unfolded ...

The correct folding of proteins is necessary to maintain healthy cells and tissues. Unfolded ...

The correct folding of proteins is necessary to maintain healthy cells and tissues.
 
  Unfolded proteins are responsible for such neurodegenerative disorders as Alzheimer's disease, Huntington's disease, and CreutzfeldtJakob disease (the

Lilsuzy2007   52   1 Reply

salmajed1

The correct operational sequence of the three processes listed below is:

The correct operational sequence of the three processes listed below is:

The correct operational sequence of the three processes listed below is:
  a. glycolysis >> electron transport >> Krebs.
  b. electron transport >> glycolysis >> Krebs.
  c. Krebs >> glycolysis >> electron transport.
  d. electron

skyleton   39   2 Replies

skyleton

The correct order of events in metastasis of a cancer is

The correct order of events in metastasis of a cancer is

The correct order of events in metastasis of a cancer is 
A) invasion → angiogenesis → transport → new site 
B) transport → invasion → angiogenesis → new site 
C) transport → angiogenesis → invasion → new site 

Astatine   1153   3 Replies

virion

The correct order of phases of the mitosis is:

The correct order of phases of the mitosis is:

The correct order of phases of the mitosis is:
A) prophase, interphase, metaphase, anaphase, telophase
B) prophase, anaphase, telophase, metaphase
C) metaphase, anaphase, prophase, telophase
D) telophase, metaphase, anaphase, prop

barry   1214   3 Replies

Doctor-2-B

The CORRECT sequence of events occurring during transcription is ________.

The CORRECT sequence of events occurring during transcription is ________.

The CORRECT sequence of events occurring during transcription is ________.
A) splicing, capping, tailing
B) initiation, elongation, termination
C) tailing, capping, splicing
D) elongation, initiation, termination

borteleto   58   1 Reply

Marc18

The correlation coefficient is a measure of the strength of association between

The correlation coefficient is a measure of the strength of association between

The correlation coefficient is a measure of the strength of association between two traits. Correlation, however, does not indicate causation. Think of one or two variables (not necessarily phenotypes) that are correlated and are causally linked, and

barry   811   1 Reply

duddy

The coupled transport system by which glucose and sodium ions simultaneously ent

The coupled transport system by which glucose and sodium ions simultaneously ent

The coupled transport system by which glucose and sodium ions simultaneously enter intestinal epithelial cells is called _______.

arealhero   310   3 Replies

milestone23

The crab industry needs female crabs for growing more crabs. What bacterium might be used to ensure ...

The crab industry needs female crabs for growing more crabs. What bacterium might be used to ensure ...

The crab industry needs female crabs for growing more crabs. What bacterium might be used to ensure development of female crabs and shrimp?
A) Gemmata
B) Neisseria
C) Wolbachia
D) Acinetobacter
E) Pelagibacter

suo90821   261   3 Replies

tramjosey

The crawling displayed by many embryonic cells in animals involves distinct events. Which of the fol

The crawling displayed by many embryonic cells in animals involves distinct events. Which of the fol

The crawling displayed by many embryonic cells in animals involves distinct events. Which of the following sequences places these events in correct order? 
A) protrusion at the cell's leading edge, attachment of protrusion, pulling th

Astatine   328   3 Replies

Lilligant

The CRISPR system

The CRISPR system

The CRISPR system
A) facilitates homologous recombination through a complex system of proteins and clustered repeats.
B) recognizes foreign DNA sequences that have previously entered the cell and directs the Cas proteins to destroy them.
C) repair

trangldtruong   77   2 Replies

trangldtruong

The CRISPR system is said to protect or preserve genome integrity in prokaryotic cells by acting as ...

The CRISPR system is said to protect or preserve genome integrity in prokaryotic cells by acting as ...

The CRISPR system is said to protect or preserve genome integrity in prokaryotic cells by acting as a type of immune system. Explain how the CRISPR system works and its limitations.

babesitter09   51   3 Replies

Kedavra

The critical concentration for tubulin polymerization is the concentration of :

The critical concentration for tubulin polymerization is the concentration of :

The critical concentration for tubulin polymerization is the concentration of
 
  A) tubulin dimers at which all dimers assemble into microtubules.
  B) unassembled tubulin dimers when assembly is balanced with disassembly.
  C)

Laddisandhu520   45   2 Replies

Laddisandhu520

The critical step in making water safe to drink is chlorination.

The critical step in making water safe to drink is chlorination.

The critical step in making water safe to drink is chlorination.
[True or False]

jhester60   64   2 Replies

jhester60

The CRP–cAMP complex binds _______ of the operon.

The CRP–cAMP complex binds _______ of the operon.

The CRP–cAMP complex binds _______ of the operon.
a. close to the RNA polymerase binding site
b. close to the operator
c. inside one of the structural genes
d. at the termination point
e. None of the above

arealhero   265   3 Replies

milestone23

The CSF produced by the choroid plexus of the brain circulates through the

The CSF produced by the choroid plexus of the brain circulates through the

The CSF produced by the choroid plexus of the brain circulates through the
A) ventricles of the brain.
B) central canal of the spinal cord.
C) dorsal root ganglia of the spinal nerves.
D) cervical, brachial, and lumbosacral plexus

barry   409   2 Replies

barry

The current understanding of cell membrane structure is based on the ________ model. (Fill in the blank)

The current understanding of cell membrane structure is based on the ________ model. (Fill in the blank)

The current understanding of cell membrane structure is based on the ________ model.
 
  Fill in the blank with correct word.

Lilsuzy2007   29   1 Reply

Andecv

The curved-rod shape typical of Caulobacter is due to the protein(s)

The curved-rod shape typical of Caulobacter is due to the protein(s)

The curved-rod shape typical of Caulobacter is due to the protein(s)
A) crescentin.
B) MreB.
C) crescentin and MreB.
D) neither crescentin nor MreB.

christyjames   25   2 Replies

christyjames

The Cyanobacteria are united by their ________, but their ________ is very diverse.

The Cyanobacteria are united by their ________, but their ________ is very diverse.

The Cyanobacteria are united by their ________, but their ________ is very diverse.
A) physiology / morphology
B) morphology / physiology
C) ecology / physiology
D) SSU rRNA gene sequences / physiology

Kei-Fukuda   52   2 Replies

Kei-Fukuda

The Cystoisospora belli organism, which contains two sporocysts with four sporozoites each, is ...

The Cystoisospora belli organism, which contains two sporocysts with four sporozoites each, is ...

The Cystoisospora belli organism, which contains two sporocysts with four sporozoites each, is recovered from fecal specimens and has also been implicated in traveler's diarrhea. The drug of choice to treat infection caused by C. belli is:
 

123123456   36   2 Replies

123123456

The cytokine that activates macrophages, inhibits viral replication, and increases MHC Class I expre

The cytokine that activates macrophages, inhibits viral replication, and increases MHC Class I expre

The cytokine that activates macrophages, inhibits viral replication, and increases MHC Class I expression is interferon.
Is this true or false?
A) True
B) False

tapey1996   194   1 Reply

de5iet