Phototropism is a mechanism that is mostly seen in the plants. In this mechanism, the plant responds to the light stimulus.

Question

Want to see more full solutions like this?

Answer 1

Question

Chapter 37, Problem 1TYK

Summary Introduction

Introduction:

Phototropism is a mechanism that is mostly seen in the plants. In this mechanism, the plant responds to the light stimulus.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

Phototropism is the growth of an organism toward a light source (positive phototropism) or away from a light source (negative phototropism). In phototropism, the cells located on the shaded side of a stem elongate more than cells on the illuminated side of a stem.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given that cells on the shaded side of a stem elongate more than the cells on the illuminated side of a stem during phototropism. The plant tip cells when exposed to light source sense light and release a chemical known as auxin. This results in the process of phototropism. It leads to the elongation of the cells that are far from the light. The shoot bends toward light and cells present in the shaded region of the stem elongate more. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that cells on the illuminated side of a stem elongate more than the cells on the shaded side in phototropism. The cells present on the illuminated side, that is, those cells that are receiving the light, do not extend more. Actually, the cells that are present in the shaded region and are far from the light elongate more than those on the illuminated side due to the chemical auxin released by the cells, which causes phototropism. So, it is a wrong answer.

Option (b) is given that phototropism is triggered by red/far-red light. The bending of the plant occurs only toward the light that includes blue wavelength. Plants have a phototropic response when the blue wavelength is available, which falls in the visible range. Therefore, it is not necessary that phototropism is triggered due to the red or far-red light. So, it is a wrong answer.

Option (d) is given that phototropism is triggered by phytochrome. Phototropism is triggered by a chemical named auxin. This chemical is produced by the cells that are present in the shaded region of the stem, thereby inducing phototropism. So, it is a wrong answer.

Hence, options (a), (b), and (d) are incorrect.

Conclusion

Phototropism refers to the orientation of the plant in response to the light. Cells that are present on the shaded side of the stem extend more than cells that are present on the illuminated side of the stem.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

The diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions. 1. Autoinduction is part of the quorum sensing system. Which promoter (P2 or P3) is critical for autoinduction? 2)This staphylococcus aureus grows on human wounds, causing severe infections. You would like to start a clinical trial to treat these wound infections. Please describe: a) What molecule do you recommend for the trial. Why? b) Your trial requires that Staphylococcus aureus be isolated from the wound and submitted to genome sequencing before admittance. Why? What are you testing for? 3) If a mutation arises where the Promoter P3 is constitutively active, how would that influence sensitivity to AIP? Please explain your rationale. 4) This pathway is sensitive to bacterial cell density. Describe two separate mutation that would render the pathway active independent of cell density. Briefly explain your rationale. Mutation 1 Mutation 2

There is currently a H5N1 cattle outbreak in North America. According to the CDC on Feb 26*: "A multistate outbreak of HPAI A(H5N1) bird flu in dairy cows was first reported on March 25, 2024. This is the first time that these bird flu viruses had been found in cows. In the United States, since 2022, USDA has reported HPAI A(H5N1) virus detections in more than 200 mammals." List and describe two mechanisms that could lead to this H5N1 influenza strain evolving to spread in human: Mechanisms 1: Mechanisms 2: For the mutations to results in a human epidered they would need to change how the virus interacts with the human host. In the case of mutations that may promote an epidemic, provide an example for: a protein that might incur a mutation: how the mutation would change interactions with cells in the respiratory tract (name the receptor on human cells) List two phenotypic consequence from this mutation that would increase human risk

You have a bacterial strain with the CMU operon: a) As shown in the image below, the cmu operon encodes a peptide (Pep1), as well as a kinase and regulator corresponding to a two-component system. The cmu operon is activated when Pep 1 is added to the growth media. Pep1 is a peptide that when added extracellularly leads to activation of the Cmu operon. Pep1 cmu-kinase cmu-regulator You also have these genetic components in other strains: b) An alternative sigma factor, with a promoter activated by the cmu-regulator, that control a series of multiple operons that together encode a transformasome (cellular machinery for transformation). c) the gene cl (a repressor). d) the promoter X, which includes a cl binding site (and in the absence of cl is active). e) the gene gp (encoding a green fluorescence protein). Using the cmu operon as a starting point, and assuming you can perform cloning to rearrange any of these genomic features, how would you use one or more of these to modify the…

Answer 2

Question

Chapter 37, Problem 1TYK

Summary Introduction

Introduction:

Phototropism is a mechanism that is mostly seen in the plants. In this mechanism, the plant responds to the light stimulus.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

Phototropism is the growth of an organism toward a light source (positive phototropism) or away from a light source (negative phototropism). In phototropism, the cells located on the shaded side of a stem elongate more than cells on the illuminated side of a stem.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given that cells on the shaded side of a stem elongate more than the cells on the illuminated side of a stem during phototropism. The plant tip cells when exposed to light source sense light and release a chemical known as auxin. This results in the process of phototropism. It leads to the elongation of the cells that are far from the light. The shoot bends toward light and cells present in the shaded region of the stem elongate more. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that cells on the illuminated side of a stem elongate more than the cells on the shaded side in phototropism. The cells present on the illuminated side, that is, those cells that are receiving the light, do not extend more. Actually, the cells that are present in the shaded region and are far from the light elongate more than those on the illuminated side due to the chemical auxin released by the cells, which causes phototropism. So, it is a wrong answer.

Option (b) is given that phototropism is triggered by red/far-red light. The bending of the plant occurs only toward the light that includes blue wavelength. Plants have a phototropic response when the blue wavelength is available, which falls in the visible range. Therefore, it is not necessary that phototropism is triggered due to the red or far-red light. So, it is a wrong answer.

Option (d) is given that phototropism is triggered by phytochrome. Phototropism is triggered by a chemical named auxin. This chemical is produced by the cells that are present in the shaded region of the stem, thereby inducing phototropism. So, it is a wrong answer.

Hence, options (a), (b), and (d) are incorrect.

Conclusion

Phototropism refers to the orientation of the plant in response to the light. Cells that are present on the shaded side of the stem extend more than cells that are present on the illuminated side of the stem.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Question

Chapter 37, Problem 1TYK

Summary Introduction

Introduction:

Phototropism is a mechanism that is mostly seen in the plants. In this mechanism, the plant responds to the light stimulus.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

Phototropism is the growth of an organism toward a light source (positive phototropism) or away from a light source (negative phototropism). In phototropism, the cells located on the shaded side of a stem elongate more than cells on the illuminated side of a stem.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given that cells on the shaded side of a stem elongate more than the cells on the illuminated side of a stem during phototropism. The plant tip cells when exposed to light source sense light and release a chemical known as auxin. This results in the process of phototropism. It leads to the elongation of the cells that are far from the light. The shoot bends toward light and cells present in the shaded region of the stem elongate more. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that cells on the illuminated side of a stem elongate more than the cells on the shaded side in phototropism. The cells present on the illuminated side, that is, those cells that are receiving the light, do not extend more. Actually, the cells that are present in the shaded region and are far from the light elongate more than those on the illuminated side due to the chemical auxin released by the cells, which causes phototropism. So, it is a wrong answer.

Option (b) is given that phototropism is triggered by red/far-red light. The bending of the plant occurs only toward the light that includes blue wavelength. Plants have a phototropic response when the blue wavelength is available, which falls in the visible range. Therefore, it is not necessary that phototropism is triggered due to the red or far-red light. So, it is a wrong answer.

Option (d) is given that phototropism is triggered by phytochrome. Phototropism is triggered by a chemical named auxin. This chemical is produced by the cells that are present in the shaded region of the stem, thereby inducing phototropism. So, it is a wrong answer.

Hence, options (a), (b), and (d) are incorrect.

Conclusion

Phototropism refers to the orientation of the plant in response to the light. Cells that are present on the shaded side of the stem extend more than cells that are present on the illuminated side of the stem.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Question

Chapter 37, Problem 1TYK

Summary Introduction

Introduction:

Phototropism is a mechanism that is mostly seen in the plants. In this mechanism, the plant responds to the light stimulus.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

Phototropism is the growth of an organism toward a light source (positive phototropism) or away from a light source (negative phototropism). In phototropism, the cells located on the shaded side of a stem elongate more than cells on the illuminated side of a stem.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given that cells on the shaded side of a stem elongate more than the cells on the illuminated side of a stem during phototropism. The plant tip cells when exposed to light source sense light and release a chemical known as auxin. This results in the process of phototropism. It leads to the elongation of the cells that are far from the light. The shoot bends toward light and cells present in the shaded region of the stem elongate more. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that cells on the illuminated side of a stem elongate more than the cells on the shaded side in phototropism. The cells present on the illuminated side, that is, those cells that are receiving the light, do not extend more. Actually, the cells that are present in the shaded region and are far from the light elongate more than those on the illuminated side due to the chemical auxin released by the cells, which causes phototropism. So, it is a wrong answer.

Option (b) is given that phototropism is triggered by red/far-red light. The bending of the plant occurs only toward the light that includes blue wavelength. Plants have a phototropic response when the blue wavelength is available, which falls in the visible range. Therefore, it is not necessary that phototropism is triggered due to the red or far-red light. So, it is a wrong answer.

Option (d) is given that phototropism is triggered by phytochrome. Phototropism is triggered by a chemical named auxin. This chemical is produced by the cells that are present in the shaded region of the stem, thereby inducing phototropism. So, it is a wrong answer.

Hence, options (a), (b), and (d) are incorrect.

Conclusion

Phototropism refers to the orientation of the plant in response to the light. Cells that are present on the shaded side of the stem extend more than cells that are present on the illuminated side of the stem.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Chapter 37, Problem 1TYK

Summary Introduction

Introduction:

Phototropism is a mechanism that is mostly seen in the plants. In this mechanism, the plant responds to the light stimulus.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

Phototropism is the growth of an organism toward a light source (positive phototropism) or away from a light source (negative phototropism). In phototropism, the cells located on the shaded side of a stem elongate more than cells on the illuminated side of a stem.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given that cells on the shaded side of a stem elongate more than the cells on the illuminated side of a stem during phototropism. The plant tip cells when exposed to light source sense light and release a chemical known as auxin. This results in the process of phototropism. It leads to the elongation of the cells that are far from the light. The shoot bends toward light and cells present in the shaded region of the stem elongate more. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that cells on the illuminated side of a stem elongate more than the cells on the shaded side in phototropism. The cells present on the illuminated side, that is, those cells that are receiving the light, do not extend more. Actually, the cells that are present in the shaded region and are far from the light elongate more than those on the illuminated side due to the chemical auxin released by the cells, which causes phototropism. So, it is a wrong answer.

Option (b) is given that phototropism is triggered by red/far-red light. The bending of the plant occurs only toward the light that includes blue wavelength. Plants have a phototropic response when the blue wavelength is available, which falls in the visible range. Therefore, it is not necessary that phototropism is triggered due to the red or far-red light. So, it is a wrong answer.

Option (d) is given that phototropism is triggered by phytochrome. Phototropism is triggered by a chemical named auxin. This chemical is produced by the cells that are present in the shaded region of the stem, thereby inducing phototropism. So, it is a wrong answer.

Hence, options (a), (b), and (d) are incorrect.

Conclusion

Phototropism refers to the orientation of the plant in response to the light. Cells that are present on the shaded side of the stem extend more than cells that are present on the illuminated side of the stem.

Answer 6

Chapter 37, Problem 1TYK

Summary Introduction

Introduction:

Phototropism is a mechanism that is mostly seen in the plants. In this mechanism, the plant responds to the light stimulus.

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

Phototropism is the growth of an organism toward a light source (positive phototropism) or away from a light source (negative phototropism). In phototropism, the cells located on the shaded side of a stem elongate more than cells on the illuminated side of a stem.

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given that cells on the shaded side of a stem elongate more than the cells on the illuminated side of a stem during phototropism. The plant tip cells when exposed to light source sense light and release a chemical known as auxin. This results in the process of phototropism. It leads to the elongation of the cells that are far from the light. The shoot bends toward light and cells present in the shaded region of the stem elongate more. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that cells on the illuminated side of a stem elongate more than the cells on the shaded side in phototropism. The cells present on the illuminated side, that is, those cells that are receiving the light, do not extend more. Actually, the cells that are present in the shaded region and are far from the light elongate more than those on the illuminated side due to the chemical auxin released by the cells, which causes phototropism. So, it is a wrong answer.

Option (b) is given that phototropism is triggered by red/far-red light. The bending of the plant occurs only toward the light that includes blue wavelength. Plants have a phototropic response when the blue wavelength is available, which falls in the visible range. Therefore, it is not necessary that phototropism is triggered due to the red or far-red light. So, it is a wrong answer.

Option (d) is given that phototropism is triggered by phytochrome. Phototropism is triggered by a chemical named auxin. This chemical is produced by the cells that are present in the shaded region of the stem, thereby inducing phototropism. So, it is a wrong answer.

Hence, options (a), (b), and (d) are incorrect.

Conclusion

Phototropism refers to the orientation of the plant in response to the light. Cells that are present on the shaded side of the stem extend more than cells that are present on the illuminated side of the stem.

Answer 7

Chapter 37, Problem 1TYK

Summary Introduction

Introduction:

Phototropism is a mechanism that is mostly seen in the plants. In this mechanism, the plant responds to the light stimulus.

Answer 8

Expert Solution & Answer

Answer to Problem 1TYK

Correct answer:

Phototropism is the growth of an organism toward a light source (positive phototropism) or away from a light source (negative phototropism). In phototropism, the cells located on the shaded side of a stem elongate more than cells on the illuminated side of a stem.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Explanation/Justification for the correct answer:

Option (c) is given that cells on the shaded side of a stem elongate more than the cells on the illuminated side of a stem during phototropism. The plant tip cells when exposed to light source sense light and release a chemical known as auxin. This results in the process of phototropism. It leads to the elongation of the cells that are far from the light. The shoot bends toward light and cells present in the shaded region of the stem elongate more. Hence, Option (c) is correct.

Explanation for incorrect answers:

Option (a) is given that cells on the illuminated side of a stem elongate more than the cells on the shaded side in phototropism. The cells present on the illuminated side, that is, those cells that are receiving the light, do not extend more. Actually, the cells that are present in the shaded region and are far from the light elongate more than those on the illuminated side due to the chemical auxin released by the cells, which causes phototropism. So, it is a wrong answer.

Option (b) is given that phototropism is triggered by red/far-red light. The bending of the plant occurs only toward the light that includes blue wavelength. Plants have a phototropic response when the blue wavelength is available, which falls in the visible range. Therefore, it is not necessary that phototropism is triggered due to the red or far-red light. So, it is a wrong answer.

Option (d) is given that phototropism is triggered by phytochrome. Phototropism is triggered by a chemical named auxin. This chemical is produced by the cells that are present in the shaded region of the stem, thereby inducing phototropism. So, it is a wrong answer.

Hence, options (a), (b), and (d) are incorrect.

Answer 12

Conclusion

Phototropism refers to the orientation of the plant in response to the light. Cells that are present on the shaded side of the stem extend more than cells that are present on the illuminated side of the stem.

Answer 13

Ch. 37 - Prob. 1TYK Ch. 37 - Prob. 2TYK Ch. 37 - Prob. 3TYK Ch. 37 - 4. What evidence suggests that ABA from roots can...Ch. 37 - Why was it logical to predict that amyloplasts...Ch. 37 - Prob. 6TYU Ch. 37 - To explore how hormones function, researchers have...Ch. 37 - Prob. 8TYU Ch. 37 - Prob. 9TYPSS Ch. 37 - Prob. 10TYPSS

Phototropism is a mechanism that is mostly seen in the plants. In this mechanism, the plant responds to the light stimulus.

Concept explainers

Introduction:

Phototropism is a mechanism that is mostly seen in the plants. In this mechanism, the plant responds to the light stimulus.

Answer to Problem 1TYK

Explanation of Solution

Want to see more full solutions like this?

Chapter 37 Solutions

Phototropism is a mechanism that is mostly seen in the plants. In this mechanism, the plant responds to the light stimulus.

Concept explainers

Introduction: Phototropism is a mechanism that is mostly seen in the plants. In this mechanism, the plant responds to the light stimulus.

Answer to Problem 1TYK

Explanation of Solution

Want to see more full solutions like this?

Chapter 37 Solutions

Introduction:

Phototropism is a mechanism that is mostly seen in the plants. In this mechanism, the plant responds to the light stimulus.