BI 121 (Forbes, GRCC)– LECTURE Exam #2 questions with
verified answers
____ ATP molecules produced for each ________ molecule but ____
ATP are used in the process. ____ ATP net. Ans✓✓✓ 1. 38, 2. glucose,
3. 2, 4. 36
________ (age spots. liver spots) are ________ spots produced by
melanocytes with ________ ______. Melanocytes produce ________
________ and stimulate production of ______ ________. Does not lead
to cancers. Ans✓✓✓ Lentigos (age spots, liver spots) are pigment spots
produced by melanocytes with UV-damaged DNA. Melanocytes
produce excess melanin and stimulate production of new melanocytes.
Does not lead to cancers.
________ (PKU) is an ________ or ________ of the enzyme responsible
for processing the ______ ______ phenylalanine Ans✓✓✓ 1.
Phenylketonuria, 2. absence, 3. deficiency, 4. amino acid
________ are elevated clusters of ________ usually harboring
________. ________ have a high probability of turning into ________.
Ans✓✓✓ 1. Moles, 2. melanocytes, 3. viruses, 4. Moles, 5. melanomas
________ are localized concentrations of ________ melanocytes
Ans✓✓✓ Freckles are localized concentrations of normal melanocytes
,________ is a cancer of the ________. Most deadly form of skin cancer.
Occurs in all races and skin colors. Ans✓✓✓ 1. Melanoma, 2.
melanocytes
________ results in the ________ ____ ________. Cause unknown but
may include ________ or ________. Ans✓✓✓ Vitiligo results in the
death of melanocytes. Cause unknown but may include autoimmunity
or neurotoxins.
(Thermoregulation by the Skin) Temperature Reduction Via... Ans✓✓✓
Radiation, Conduction, Convection, Evaporation, Vasodilation
(Thermoregulation of the Skin) Temperature Increase Via... Ans✓✓✓
Vasoconstriction, Shivering (muscular sys.), Conduction, Convection,
Lofting of hair/pelage
Active Sites Ans✓✓✓ Region of the enzyme that bonds with the
substrate
Adult (Somatic) Cloning Ans✓✓✓ Cloning using differentiated cells
Albinism is the ________ ____ ________ to produce ________. (An
inborn error of metabolism) Ans✓✓✓ Albinism is the failure of
melanocytes to produce melanin. (An inborn error of metabolism)
, Alopecia (________ loss) occurs as a result of ________, low ________
levels, ________, ________ and ________ disorders. Ans✓✓✓ 1. hair,
2. fever, 3. estrogen, 4. genes, 5. autoimmune
An ________ acts upon a ________ ________ but a ________
________ can be acted upon by ________ ________! Ans✓✓✓ 1.
enzyme, 2. single substrate, 3. single substrate, 4. multiple enzymes
Anaerobic Respiration Ans✓✓✓ If O2 is not available only glycolysis
can occur; results in production of lactic acid
Apocrine Gland Ans✓✓✓ Release cell contents and membrane
fragments (e.g.: mammary glands)
Are stem cells resident in a given tissue or can they migrate? Ans✓✓✓
Stem cells have an inherent ability to migrate, that is as important as
their capacity for self-renewal and differentiation, enabling them to
maintain tissue homeostasis and mediate repair and regeneration
Arrector Pilli Muscle Ans✓✓✓ Smooth muscle that stands hair up
As the size of the wound ________, so does the chance of scarring
(________ ________) formation. ________ ________ are a result of
scarring from stretching and ________ of the integument. Ans✓✓✓ As
the size of the wound increases, so does the chance of scarring
verified answers
____ ATP molecules produced for each ________ molecule but ____
ATP are used in the process. ____ ATP net. Ans✓✓✓ 1. 38, 2. glucose,
3. 2, 4. 36
________ (age spots. liver spots) are ________ spots produced by
melanocytes with ________ ______. Melanocytes produce ________
________ and stimulate production of ______ ________. Does not lead
to cancers. Ans✓✓✓ Lentigos (age spots, liver spots) are pigment spots
produced by melanocytes with UV-damaged DNA. Melanocytes
produce excess melanin and stimulate production of new melanocytes.
Does not lead to cancers.
________ (PKU) is an ________ or ________ of the enzyme responsible
for processing the ______ ______ phenylalanine Ans✓✓✓ 1.
Phenylketonuria, 2. absence, 3. deficiency, 4. amino acid
________ are elevated clusters of ________ usually harboring
________. ________ have a high probability of turning into ________.
Ans✓✓✓ 1. Moles, 2. melanocytes, 3. viruses, 4. Moles, 5. melanomas
________ are localized concentrations of ________ melanocytes
Ans✓✓✓ Freckles are localized concentrations of normal melanocytes
,________ is a cancer of the ________. Most deadly form of skin cancer.
Occurs in all races and skin colors. Ans✓✓✓ 1. Melanoma, 2.
melanocytes
________ results in the ________ ____ ________. Cause unknown but
may include ________ or ________. Ans✓✓✓ Vitiligo results in the
death of melanocytes. Cause unknown but may include autoimmunity
or neurotoxins.
(Thermoregulation by the Skin) Temperature Reduction Via... Ans✓✓✓
Radiation, Conduction, Convection, Evaporation, Vasodilation
(Thermoregulation of the Skin) Temperature Increase Via... Ans✓✓✓
Vasoconstriction, Shivering (muscular sys.), Conduction, Convection,
Lofting of hair/pelage
Active Sites Ans✓✓✓ Region of the enzyme that bonds with the
substrate
Adult (Somatic) Cloning Ans✓✓✓ Cloning using differentiated cells
Albinism is the ________ ____ ________ to produce ________. (An
inborn error of metabolism) Ans✓✓✓ Albinism is the failure of
melanocytes to produce melanin. (An inborn error of metabolism)
, Alopecia (________ loss) occurs as a result of ________, low ________
levels, ________, ________ and ________ disorders. Ans✓✓✓ 1. hair,
2. fever, 3. estrogen, 4. genes, 5. autoimmune
An ________ acts upon a ________ ________ but a ________
________ can be acted upon by ________ ________! Ans✓✓✓ 1.
enzyme, 2. single substrate, 3. single substrate, 4. multiple enzymes
Anaerobic Respiration Ans✓✓✓ If O2 is not available only glycolysis
can occur; results in production of lactic acid
Apocrine Gland Ans✓✓✓ Release cell contents and membrane
fragments (e.g.: mammary glands)
Are stem cells resident in a given tissue or can they migrate? Ans✓✓✓
Stem cells have an inherent ability to migrate, that is as important as
their capacity for self-renewal and differentiation, enabling them to
maintain tissue homeostasis and mediate repair and regeneration
Arrector Pilli Muscle Ans✓✓✓ Smooth muscle that stands hair up
As the size of the wound ________, so does the chance of scarring
(________ ________) formation. ________ ________ are a result of
scarring from stretching and ________ of the integument. Ans✓✓✓ As
the size of the wound increases, so does the chance of scarring
