BSC 101 Wodika: Test Three questions with
accurate answers
-mainly synthesized in the liver and is the precursor to
steroids(testosterone and estradiol)
-It is also the precursor of vitamins E and K.
-is the precursor of bile salts, which help in the breakdown of fats and
their subsequent absorption by cells.
-often spoken of in negative terms, but it is necessary for the proper
functioning of the body.
-It is a key component of the plasma membranes of animal cells.
Ans✓✓✓ cholesterol
an enzyme that cleaves off the amino acids from the larger chain and
then absorbed into the blood and then the cells for fuel Ans✓✓✓ pepsin
animals fats, have a maximum amount of hydrogen bonds, solid at room
temperature Ans✓✓✓ saturated fats
Are cold sores and canker sores the same? Ans✓✓✓ NO
-canker sores happen inside the mouth while cold sores happen outside
the body
birth and its three stages Ans✓✓✓ parturition
,causes the protein to unravel so that the bonds in between the amino
acids are accessible to the enzymes Ans✓✓✓ hydrochloric acid
Define antibody Ans✓✓✓ A protein produced by lymphocytes in
response to the presence of the appropriate antigen. It marks antigens to
be killed
Define antigen Ans✓✓✓ a toxin or other foreign substance that induces
an immune response in the body, especially the production of antibodies.
define genome and generally explain how it is organized among
chromosomes in humans Ans✓✓✓ -genome: all genetic makeup of an
individual
-23 homologous pairs of chromosomes (karyotype: arranged by length
and banding aka color pattern)
Define metastasis Ans✓✓✓ when a tumor is malignant and has moved
to another part of the body
describe how our dietary choices can prevent cancer Ans✓✓✓
Describe the normal(unmutated) functions of DNA repair genes
Ans✓✓✓ repairs errors in DNA replication
, Describe the normal(unmutated) functions of proto-oncogenes
Ans✓✓✓ encode proteins that function to stimulate cell division,
inhibit cell differentiation, and halt cell death.
Describe the normal(unmutated) functions of tumor suppressor genes
Ans✓✓✓ genes that code for the negative regulator proteins, the type of
regulator that—when activated—can prevent the cell from undergoing
uncontrolled division (the break)
Describe treatments for cancer Ans✓✓✓ -surgery(directly remove
tumor)
-radiation(creates X-rays to kill individual cells)
-chemotherapy(provides chemicals and kills individual cells)
Explain how a virus infects a cell Ans✓✓✓ 1. Virus attaches to
cell(attachment stage)
2.Cell engulfs or injects nucleic acid into cell
3. Viral contents released and enter the nucleus where it is replicated by
viral RNA polymerase
4. Viral mRNA is used to make viral proteins
5. New viral particles are made and released
Explain how herd immunity works Ans✓✓✓ occurs when a large
portion of a community (the herd) becomes immune to a disease,
making the spread of disease from person to person unlikely. As a result,
accurate answers
-mainly synthesized in the liver and is the precursor to
steroids(testosterone and estradiol)
-It is also the precursor of vitamins E and K.
-is the precursor of bile salts, which help in the breakdown of fats and
their subsequent absorption by cells.
-often spoken of in negative terms, but it is necessary for the proper
functioning of the body.
-It is a key component of the plasma membranes of animal cells.
Ans✓✓✓ cholesterol
an enzyme that cleaves off the amino acids from the larger chain and
then absorbed into the blood and then the cells for fuel Ans✓✓✓ pepsin
animals fats, have a maximum amount of hydrogen bonds, solid at room
temperature Ans✓✓✓ saturated fats
Are cold sores and canker sores the same? Ans✓✓✓ NO
-canker sores happen inside the mouth while cold sores happen outside
the body
birth and its three stages Ans✓✓✓ parturition
,causes the protein to unravel so that the bonds in between the amino
acids are accessible to the enzymes Ans✓✓✓ hydrochloric acid
Define antibody Ans✓✓✓ A protein produced by lymphocytes in
response to the presence of the appropriate antigen. It marks antigens to
be killed
Define antigen Ans✓✓✓ a toxin or other foreign substance that induces
an immune response in the body, especially the production of antibodies.
define genome and generally explain how it is organized among
chromosomes in humans Ans✓✓✓ -genome: all genetic makeup of an
individual
-23 homologous pairs of chromosomes (karyotype: arranged by length
and banding aka color pattern)
Define metastasis Ans✓✓✓ when a tumor is malignant and has moved
to another part of the body
describe how our dietary choices can prevent cancer Ans✓✓✓
Describe the normal(unmutated) functions of DNA repair genes
Ans✓✓✓ repairs errors in DNA replication
, Describe the normal(unmutated) functions of proto-oncogenes
Ans✓✓✓ encode proteins that function to stimulate cell division,
inhibit cell differentiation, and halt cell death.
Describe the normal(unmutated) functions of tumor suppressor genes
Ans✓✓✓ genes that code for the negative regulator proteins, the type of
regulator that—when activated—can prevent the cell from undergoing
uncontrolled division (the break)
Describe treatments for cancer Ans✓✓✓ -surgery(directly remove
tumor)
-radiation(creates X-rays to kill individual cells)
-chemotherapy(provides chemicals and kills individual cells)
Explain how a virus infects a cell Ans✓✓✓ 1. Virus attaches to
cell(attachment stage)
2.Cell engulfs or injects nucleic acid into cell
3. Viral contents released and enter the nucleus where it is replicated by
viral RNA polymerase
4. Viral mRNA is used to make viral proteins
5. New viral particles are made and released
Explain how herd immunity works Ans✓✓✓ occurs when a large
portion of a community (the herd) becomes immune to a disease,
making the spread of disease from person to person unlikely. As a result,
