Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
Related questions
Question
Please answer parts a and b

Transcribed Image Text:Extracollular fluid
The" "Sodium-Potassium Pump" is also referred to as the
"Na*/K* pump" or the "Na*/K* ATPase protein". This pump
protein cannot function without a molecule of ATP. This
protein plays a role in transport of two ions: Three Na*
ions are pumped out of the cell and two K* are pumped
into the cell. Both ions are moved against their
concentration gradients. Concentration gradients are
maintained by the Na+/K+ ATPase via active transport.
Intracellular fluid
Na 15 mM
Na 145 mM
K* 150 mM
K+ 4 mM
ATP
3Na
2K
ADR
The Sodium- Glucose Linked Transporter 1 (SGLT-1)
protein is a sodium-glucose cotransporter found in the
cells that line the small intestine. SGLT-1 does not use ATP for transport, but energy for uphill glucose
transport is provided by the sodium gradient maintained by the Na*/K* ATPase protein.
![Researchers studying the SGLT1 protein were able to make artificial cells that contained the SGLT-1
protein and a lipid bi-layer. The graph below shows the relationship between glucose transport and Na+
concentration of the solution that these artificial cells were placed in.
Na*
Na+
Na
glucose
Using the information from the figure to the
right and the graph below, explain briefly
how the SGLT-1 protein functions to
transport both Nat and glucose?
Use your understanding of protein structure
& function, to describe this co-transport.
a.
A
В
The graph shows the relationship between glucose
transport and Na* concentration of the solution that
these artificial cells were placed in.
30
b. What would happen to glucose transport via
the SGLT1 protein in the presence of an
ATPase inhibitor? Describe briefly.
HINT: Check description of transport in page 2
10
(ATPase is an enzyme that breaks down ATP into ADP
and free phosphate ion, providing energy, an inhibitor
prevents its action).
20
40
60
80
100
120
[Na'] (mM)
D-H] Glucose Uptake pmol / mg protein x min](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff04fce5f-caf5-4f3f-91e1-8de6f6f0f381%2F076189ac-265e-4cfd-8c2a-0b3e56328390%2Fhdh3qcg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Researchers studying the SGLT1 protein were able to make artificial cells that contained the SGLT-1
protein and a lipid bi-layer. The graph below shows the relationship between glucose transport and Na+
concentration of the solution that these artificial cells were placed in.
Na*
Na+
Na
glucose
Using the information from the figure to the
right and the graph below, explain briefly
how the SGLT-1 protein functions to
transport both Nat and glucose?
Use your understanding of protein structure
& function, to describe this co-transport.
a.
A
В
The graph shows the relationship between glucose
transport and Na* concentration of the solution that
these artificial cells were placed in.
30
b. What would happen to glucose transport via
the SGLT1 protein in the presence of an
ATPase inhibitor? Describe briefly.
HINT: Check description of transport in page 2
10
(ATPase is an enzyme that breaks down ATP into ADP
and free phosphate ion, providing energy, an inhibitor
prevents its action).
20
40
60
80
100
120
[Na'] (mM)
D-H] Glucose Uptake pmol / mg protein x min
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