Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 5, Problem 10TYU
Test Your Understanding
10. INTERPRET DATA GLUT 4 is a glucose transporter that functions in adipose (fat) cell plasma membranes. An analysis of adipose cells exposed to insulin showed that a single cell could import glucose at a maximum rate of about 1×108 molecules/second. Under the same conditions, unstimulated cells could only transport a maximum of about 1×107 molecules/second. What does this finding tell you about the relative number of GLUT 4 transporters functioning in the plasma membranes of stimulated versus unstimulated cells?
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Students have asked these similar questions
Part A)
1. True
2. False
3. False
4. True
Part B)
Transport of lactose would increase.
Glucose transporter (GLUT) isoforms move glucose in and out of the cell GLUTS respond to the glucose equilibrium concentrations. Use your knowledge of enzyme catalysis
and lonetics to predict which of the following correctly rank the steps in glucose transport by GLUT1?
1. Glucose binding results in a conformational change, opening the binding site on the opposite side of the membrane
11. Glucose binds to the transporter on one side of the membrane
II. The transporter reverts to initial conformation
IV. The glucose disassociates
OA III, IV, III
OB. 1,1,1, IV
OCIV, II, II, I
ODII, IV III
OENI, LI
is this stement false?
Intracellular concentrations in resting muscle are as follows: Fructose-6-phosphate (1.0 mM)Fructose-(1-6)-bisphosphate (10.0 mM)AMP (0.1 mM)ADP (0.5 mM)ATP (5.0 mM)Pi (10.0 mM)Under the above conditions the Phosphofructokinase reaction in muscle is more exergonic than under standard conditions.
Chapter 5 Solutions
Biology (MindTap Course List)
Ch. 5.1 - Prob. 1LOCh. 5.1 - Prob. 2LOCh. 5.1 - Prob. 3LOCh. 5.1 - Prob. 4LOCh. 5.1 - What molecules are responsible for the physical...Ch. 5.1 - Prob. 2CCh. 5.1 - Prob. 3CCh. 5.2 - Prob. 5LOCh. 5.2 - Prob. 1CCh. 5.2 - What roles do membrane proteins play in cell...
Ch. 5.3 - Describe the importance of selectively permeable...Ch. 5.3 - Prob. 1CCh. 5.3 - Prob. 2CCh. 5.3 - Prob. 3CCh. 5.4 - Prob. 7LOCh. 5.4 - LEARNING O9BJECTIVES 8Define osmosis and solve...Ch. 5.4 - PREDICT What would happen if a plan cell were...Ch. 5.4 - What is the immediate source of energy for simple...Ch. 5.4 - Prob. 3CCh. 5.5 - Prob. 9LOCh. 5.5 - Prob. 1CCh. 5.5 - What is the immediate energy source for...Ch. 5.6 - Prob. 10LOCh. 5.6 - In what ways are exocytosis and endocytosis...Ch. 5.6 - How are the processes of phagocytosis and...Ch. 5.6 - What is the sequence of events in...Ch. 5.7 - Compare the structures and functions of anchoring...Ch. 5.7 - Prob. 1CCh. 5.7 - Prob. 2CCh. 5 - Test Your Understanding 1.Transmembrane proteins...Ch. 5 - Test Your Understanding 2.Which of the following...Ch. 5 - Test Your Understanding 3.ABC transporters (a) use...Ch. 5 - Test Your Understanding 4.When plant cells are in...Ch. 5 - Test Your Understanding 5.Which of the following...Ch. 5 - Test Your Understanding 6.Electrochemical...Ch. 5 - Test Your Understanding 7.In cotransport (indirect...Ch. 5 - Prob. 8TYUCh. 5 - Prob. 9TYUCh. 5 - Test Your Understanding 10.INTERPRET DATA GLUT 4...Ch. 5 - Prob. 11TYUCh. 5 - Test Your Understanding 12.EVOLUTION LINK Explain...Ch. 5 - Prob. 13TYU
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- Calculate the number of cells in the body of an average 68-kg (150-lb) adult. (This will only be accurate to about 1 part in 10 but should give you an idea how scientists estimate this commonly quoted number.) Assume all cells are spheres 20 m in diameter. The volume of a sphere can be determined by the equation v=4/33. (Hint: We know that about two thirds of the water in the body is intracellular and the density of cells is nearly 1 g/mL. The proportion of the mass made up of water is about 60%.)arrow_forwardTable K₁ (T1) Vmax (T1) Kt (T2) Vmax (T2) 1 1.12 mM 125 nmole/min None of the above. 3.0 mM 130 nmole/min Based on these values, what are your conclusions? O T1 is most likely a cell that expresses a high affinity transporter for glucose. T2 is most likely a cell that expresses a high affinity transporter for glucose. T1 must be a cell expressing the insulin-dependent glucose transporter. Each transporter has a similar Vmax and therefore both T1 and T2 are the same cell type.arrow_forwardPlease asaparrow_forward
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