BCH361 EXAM 5 QUESTIONS WITH VERIFIED
ANSWERS
The region of the chloroplast between the inner membrane and the
thylakoid membrane is called the-- - Answers - The Stroma
In which part of the chloroplast does reduction of CO2 during
photosynthesis primarily occur? - Answers - Stroma
Light with short wavelengths has less energy than light with long
wavelengths? - Answers - False
The specialized pair of chlorophylls exist at? - Answers - The reaction
centers
The synthesis of ATP in chloroplasts uses a proton gradient similar to the
one used in mitochondria? - Answers - True
Accessory pigments in the chloroplasts cover more of the light spectrum
than do the chlorophyll molecules themselves? - Answers - True
The actual CO2 fixation process in photosynthesis is the addition of CO2
into a 5 carbon compound to yield- - Answers - 3-phosphoglycerate
Where do the light and dark reactions take place? - Answers - The light
reaction take place in the thylakoid disks, whereas the dark reaction occur
in the stroma
A second messenger is? - Answers - A substance that brings about a
desired effect in a cell as a result of a hormone binding to a receptor on the
cell surface
Amino acid and protein hormones usually act by binding to a receptor on
the cell surface? - Answers - True
Which one best describes insulin's structure? - Answers - Peptide
, The G-protein - Answers - Mediates the production of the second
messenger
When cyclic AMP is a second messenger - Answers - The binding of
hormone produces the desired effect in the cell by stimulating the
production of cyclic AMP
G proteins act on? - Answers - adenylate cyclase
The following are all common parts of some hormone processes-- A typical
path of reactions would follow this sequence: - Answers - 1-Binding of the
hormone to a receptor -> 4-Relase of a G-protein from the interior cell
membrane -> 2-Synthesis of cyclic AMP -> 5-Activation of a protein kinase
-> 3-Phosphorylation of the target enzyme
1->4->2->5->3
Most homones accomplish their activity by direct inclusion in the cell, where
they carry out their catalytic function - Answers - False
A hormone is defined as a substance which is made in one tissue, but
actually acts on a different tissue - Answers - True
A hormone could be termed a First Messenger? - Answers - True
Hormone activity frequently turns metabolic pathways on and off by adding
phosphate to or removing it from molecules within the cell - Answers - True
Insulin exerts its effect through? - Answers - Tyrosine kinases
The pH of the mitochondrial matix is _________ the pH of the
intermembrane space - Answers - Higher than
The final reduced species in the electron transport chain is? - Answers -
H2O
Which one of the following terms describes ATP synthesis in the
mitochondria? - Answers - Oxidative phosphorylation
ANSWERS
The region of the chloroplast between the inner membrane and the
thylakoid membrane is called the-- - Answers - The Stroma
In which part of the chloroplast does reduction of CO2 during
photosynthesis primarily occur? - Answers - Stroma
Light with short wavelengths has less energy than light with long
wavelengths? - Answers - False
The specialized pair of chlorophylls exist at? - Answers - The reaction
centers
The synthesis of ATP in chloroplasts uses a proton gradient similar to the
one used in mitochondria? - Answers - True
Accessory pigments in the chloroplasts cover more of the light spectrum
than do the chlorophyll molecules themselves? - Answers - True
The actual CO2 fixation process in photosynthesis is the addition of CO2
into a 5 carbon compound to yield- - Answers - 3-phosphoglycerate
Where do the light and dark reactions take place? - Answers - The light
reaction take place in the thylakoid disks, whereas the dark reaction occur
in the stroma
A second messenger is? - Answers - A substance that brings about a
desired effect in a cell as a result of a hormone binding to a receptor on the
cell surface
Amino acid and protein hormones usually act by binding to a receptor on
the cell surface? - Answers - True
Which one best describes insulin's structure? - Answers - Peptide
, The G-protein - Answers - Mediates the production of the second
messenger
When cyclic AMP is a second messenger - Answers - The binding of
hormone produces the desired effect in the cell by stimulating the
production of cyclic AMP
G proteins act on? - Answers - adenylate cyclase
The following are all common parts of some hormone processes-- A typical
path of reactions would follow this sequence: - Answers - 1-Binding of the
hormone to a receptor -> 4-Relase of a G-protein from the interior cell
membrane -> 2-Synthesis of cyclic AMP -> 5-Activation of a protein kinase
-> 3-Phosphorylation of the target enzyme
1->4->2->5->3
Most homones accomplish their activity by direct inclusion in the cell, where
they carry out their catalytic function - Answers - False
A hormone is defined as a substance which is made in one tissue, but
actually acts on a different tissue - Answers - True
A hormone could be termed a First Messenger? - Answers - True
Hormone activity frequently turns metabolic pathways on and off by adding
phosphate to or removing it from molecules within the cell - Answers - True
Insulin exerts its effect through? - Answers - Tyrosine kinases
The pH of the mitochondrial matix is _________ the pH of the
intermembrane space - Answers - Higher than
The final reduced species in the electron transport chain is? - Answers -
H2O
Which one of the following terms describes ATP synthesis in the
mitochondria? - Answers - Oxidative phosphorylation
