The ion whose electrochemical gradient drives the import of amino acids in an animal cell across a plasma membrane. Introduction: The ion and amino acid transport across the plasma membrane occurs with high and low affinity of transport systems. High-affinity transport system in nerve cell functions to remove neurotransmitter amino acid from the extracellular area. Transporters that proceed with coupled transport where the solutes travel in the same direction are known as symport. Amino acids travel across the membrane with the help of ion inside the cell.

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Answer 1

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Chapter 12, Problem 18Q

Summary Introduction

To determine: The ion whose electrochemical gradient drives the import of amino acids in an animal cell across a plasma membrane.

Introduction: The ion and amino acid transport across the plasma membrane occurs with high and low affinity of transport systems. High-affinity transport system in nerve cell functions to remove neurotransmitter amino acid from the extracellular area. Transporters that proceed with coupled transport where the solutes travel in the same direction are known as symport. Amino acids travel across the membrane with the help of ion inside the cell.

Summary Introduction

To explain: Whether ATP is needed in the symport process of amino acid.

Introduction: The ion and amino acid transport across the plasma membrane occurs with high and low affinity of transport systems. High-affinity transport system in nerve cell functions to remove neurotransmitter amino acid from the extracellular area. Transporters that proceed with coupled transport where the solutes travel in the same direction are known as symport. Amino acids travel across the membrane with the help of ion inside the cell.

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Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…

Question #5: Assume that two genes are identified that confer gametophytic facultative apomixis in soybean. The genes show independent assortment. Recessive alleles at both loci are required for the facultative apomixis. Facultative apomixis is triggered when the temperature at pollination is above 20 degrees C. At temperatures below 20 degrees C, all reproduction is sexual, independent of genotype. A facultative apomict male, capable of producing viable pollen, was crossed with a sexually reproducing female. Assuming the parents are completely inbred, what are the predicted phenotypic ratios (apomict: non-apomict) for the F1, F2, and DH (F1-derived) generations at each of the following temperatures*: a) 15°C? b) 25°C? *for full credit, show crosses and genotypes where appropriate. Remember to position the female first (left side) in the cross. Type your answer here:

Answer 2

Question

Chapter 12, Problem 18Q

Summary Introduction

To determine: The ion whose electrochemical gradient drives the import of amino acids in an animal cell across a plasma membrane.

Introduction: The ion and amino acid transport across the plasma membrane occurs with high and low affinity of transport systems. High-affinity transport system in nerve cell functions to remove neurotransmitter amino acid from the extracellular area. Transporters that proceed with coupled transport where the solutes travel in the same direction are known as symport. Amino acids travel across the membrane with the help of ion inside the cell.

Summary Introduction

To explain: Whether ATP is needed in the symport process of amino acid.

Introduction: The ion and amino acid transport across the plasma membrane occurs with high and low affinity of transport systems. High-affinity transport system in nerve cell functions to remove neurotransmitter amino acid from the extracellular area. Transporters that proceed with coupled transport where the solutes travel in the same direction are known as symport. Amino acids travel across the membrane with the help of ion inside the cell.

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Answer 3

Question

Chapter 12, Problem 18Q

Summary Introduction

To determine: The ion whose electrochemical gradient drives the import of amino acids in an animal cell across a plasma membrane.

Introduction: The ion and amino acid transport across the plasma membrane occurs with high and low affinity of transport systems. High-affinity transport system in nerve cell functions to remove neurotransmitter amino acid from the extracellular area. Transporters that proceed with coupled transport where the solutes travel in the same direction are known as symport. Amino acids travel across the membrane with the help of ion inside the cell.

Summary Introduction

To explain: Whether ATP is needed in the symport process of amino acid.

Introduction: The ion and amino acid transport across the plasma membrane occurs with high and low affinity of transport systems. High-affinity transport system in nerve cell functions to remove neurotransmitter amino acid from the extracellular area. Transporters that proceed with coupled transport where the solutes travel in the same direction are known as symport. Amino acids travel across the membrane with the help of ion inside the cell.

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Answer 4

Question

Chapter 12, Problem 18Q

Summary Introduction

To determine: The ion whose electrochemical gradient drives the import of amino acids in an animal cell across a plasma membrane.

Introduction: The ion and amino acid transport across the plasma membrane occurs with high and low affinity of transport systems. High-affinity transport system in nerve cell functions to remove neurotransmitter amino acid from the extracellular area. Transporters that proceed with coupled transport where the solutes travel in the same direction are known as symport. Amino acids travel across the membrane with the help of ion inside the cell.

Summary Introduction

To explain: Whether ATP is needed in the symport process of amino acid.

Introduction: The ion and amino acid transport across the plasma membrane occurs with high and low affinity of transport systems. High-affinity transport system in nerve cell functions to remove neurotransmitter amino acid from the extracellular area. Transporters that proceed with coupled transport where the solutes travel in the same direction are known as symport. Amino acids travel across the membrane with the help of ion inside the cell.

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Answer 5

Chapter 12, Problem 18Q

Summary Introduction

To determine: The ion whose electrochemical gradient drives the import of amino acids in an animal cell across a plasma membrane.

Introduction: The ion and amino acid transport across the plasma membrane occurs with high and low affinity of transport systems. High-affinity transport system in nerve cell functions to remove neurotransmitter amino acid from the extracellular area. Transporters that proceed with coupled transport where the solutes travel in the same direction are known as symport. Amino acids travel across the membrane with the help of ion inside the cell.

Summary Introduction

To explain: Whether ATP is needed in the symport process of amino acid.

Introduction: The ion and amino acid transport across the plasma membrane occurs with high and low affinity of transport systems. High-affinity transport system in nerve cell functions to remove neurotransmitter amino acid from the extracellular area. Transporters that proceed with coupled transport where the solutes travel in the same direction are known as symport. Amino acids travel across the membrane with the help of ion inside the cell.

Answer 6

Chapter 12, Problem 18Q

Summary Introduction

To determine: The ion whose electrochemical gradient drives the import of amino acids in an animal cell across a plasma membrane.

Introduction: The ion and amino acid transport across the plasma membrane occurs with high and low affinity of transport systems. High-affinity transport system in nerve cell functions to remove neurotransmitter amino acid from the extracellular area. Transporters that proceed with coupled transport where the solutes travel in the same direction are known as symport. Amino acids travel across the membrane with the help of ion inside the cell.

Answer 7

Chapter 12, Problem 18Q

Summary Introduction

To determine: The ion whose electrochemical gradient drives the import of amino acids in an animal cell across a plasma membrane.

Introduction: The ion and amino acid transport across the plasma membrane occurs with high and low affinity of transport systems. High-affinity transport system in nerve cell functions to remove neurotransmitter amino acid from the extracellular area. Transporters that proceed with coupled transport where the solutes travel in the same direction are known as symport. Amino acids travel across the membrane with the help of ion inside the cell.

Answer 8

Summary Introduction

To explain: Whether ATP is needed in the symport process of amino acid.

Introduction: The ion and amino acid transport across the plasma membrane occurs with high and low affinity of transport systems. High-affinity transport system in nerve cell functions to remove neurotransmitter amino acid from the extracellular area. Transporters that proceed with coupled transport where the solutes travel in the same direction are known as symport. Amino acids travel across the membrane with the help of ion inside the cell.

Answer 9

Summary Introduction

To explain: Whether ATP is needed in the symport process of amino acid.

Introduction: The ion and amino acid transport across the plasma membrane occurs with high and low affinity of transport systems. High-affinity transport system in nerve cell functions to remove neurotransmitter amino acid from the extracellular area. Transporters that proceed with coupled transport where the solutes travel in the same direction are known as symport. Amino acids travel across the membrane with the help of ion inside the cell.

Answer 10

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Answer 13

Ch. 12 - Prob. 1Q Ch. 12 - Prob. 2Q Ch. 12 - Prob. 3Q Ch. 12 - Prob. 4Q Ch. 12 - Prob. 5Q Ch. 12 - Prob. 6Q Ch. 12 - Prob. 7Q Ch. 12 - Prob. 8Q Ch. 12 - Prob. 9Q Ch. 12 - Prob. 10Q

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