Answer the following statement(s) true (T) or false (F)

Question

1.  While researching the effects of light on chlorophyll synthesis in sorghum, you find that brief pulses of red light stimulates the synthesis of chlorophyll and This would suggest that chlorophyll synthesis is directed by the Pr form of phytochrome.  

Clarify Question
· What is the key concept addressed by the question?
· What type of thinking is required?
· What key words does the question contain and what do they mean?

Gather Content
· What do you already know about "phytochromes and photosynthesis? How does it relate to the question?

Consider Possibilities
· What other information is related to the question? Which information is most useful?

Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?

Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

2. The removal of the root cap eliminates the ability of a root to respond to gravity.  
Clarify Question
· What is the key concept addressed by the question?
· What type of thinking is required?
· What key words does the question contain and what do they mean?

Gather Content
· What do you already know about root caps? How does it relate to the question?

Consider Possibilities
· What other information is related to the question? Which information is most useful?

Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?

Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

3. While researching the effects of light on chlorophyll synthesis in sorghum, you find that brief pulses of red light stimulates the synthesis of chlorophyll and This would suggest that chlorophyll synthesis is directed by the Pr form of phytochrome.  

Clarify Question
· What is the key concept addressed by the question?
· What type of thinking is required?
· What key words does the question contain and what do they mean?

Gather Content
· What do you already know about "phytochromes and photosynthesis? How does it relate to the question?

Consider Possibilities
· What other information is related to the question? Which information is most useful?

Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?

Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

4. The removal of the root cap eliminates the ability of a root to respond to gravity.  
Clarify Question
· What is the key concept addressed by the question?
· What type of thinking is required?
· What key words does the question contain and what do they mean?

Gather Content
· What do you already know about root caps? How does it relate to the question?

Consider Possibilities
· What other information is related to the question? Which information is most useful?

Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?

Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

5. Muscles can carry out their unique motor function because they are the only cells which contain actin and myosin.  

Answer 1

1. FALSE
Clarify Question
· What is the key concept addressed by the question?
        o The question is asking about the different forms of phytochrome.
· What type of thinking is required?
        o This question is asking you to evaluate-phytochrome use in a plant.
· What key words does the question contain and what do they mean?
        o Chlorophyll, which is a pigment that absorbs light that can be used in photosynthesis.
        o Red light, which includes wavelengths of light that are used in photosynthesis.
        o Phytochrome, which is a pigment-containing protein.

Gather Content
· What do you already know about "phytochromes and photosynthesis? How does it relate to the question?
        o Active processes require the conversion of Pr to Pfr.

Consider Possibilities
· What other information is related to the question? Which information is most useful?
        o Since chlorophyll synthesis requires active phytochrome, the Pr would need to become Pfr.

Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
        o In the presence of red light, the Pr form of phytochrome is converted to the active form Pfr which would direct the synthesis of chlorophyll.

Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
· Evaluate level:
This question asked you to evaluate the different forms of phytochrome. Answering this question correctly depended on your ability to evaluate when Pr and Pfr act. If you got the correct answer, well done! If you got an incorrect answer, where did the process break down? Did you remember that Pr differs from Pfr in that Pfr is required for active processes? Did you have trouble weighing the merits of Pr relative to Pfr to determine the correct answer?

2.  TRUE
Clarify Question
· What is the key concept addressed by the question?
        o This question is asking about the importance of the root cap.
· What type of thinking is required?
        o You are being asked to take what you already know and apply it to the function of a root cap.
· What key words does the question contain and what do they mean?
        o Root cap, which is the covering that occurs at the end of a root.

Gather Content
· What do you already know about root caps? How does it relate to the question?
        o The gravity-sensing cells of the root are located in the root cap.
        o Studies have shown that removing the cap eliminates the root's ability to respond to gravity.

Consider Possibilities
· What other information is related to the question? Which information is most useful?
        o Since gravity-sensing cells are located in the root cap, removal of the root cap would eliminate this ability.

Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
        o To answer this question you must connect the presence of gravity-sensing cells with the root cap. Removal of the root cap would remove gravity-sensing cells from the root.

Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
· Apply level:
        o This question asked you to understand the nature of the root cap. Answering this question correctly depended on your ability to use the composition of the root cap in a new situation.  If you got the correct answer, great job! If you got an incorrect answer, where did the process break down? Did you remember that the root cap contains gravity-sensing cells? Did you have trouble extending the nature of the root cap to determine the correct answer?

3. FALSE
Clarify Question
· What is the key concept addressed by the question?
        o The question is asking about the different forms of phytochrome.
· What type of thinking is required?
        o This question is asking you to evaluate-phytochrome use in a plant.
· What key words does the question contain and what do they mean?
        o Chlorophyll, which is a pigment that absorbs light that can be used in photosynthesis.
        o Red light, which includes wavelengths of light that are used in photosynthesis.
        o Phytochrome, which is a pigment-containing protein.

Gather Content
· What do you already know about "phytochromes and photosynthesis? How does it relate to the question?
        o Active processes require the conversion of Pr to Pfr.

Consider Possibilities
· What other information is related to the question? Which information is most useful?
        o Since chlorophyll synthesis requires active phytochrome, the Pr would need to become Pfr.

Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
        o In the presence of red light, the Pr form of phytochrome is converted to the active form Pfr which would direct the synthesis of chlorophyll.

Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
· Evaluate level:
This question asked you to evaluate the different forms of phytochrome. Answering this question correctly depended on your ability to evaluate when Pr and Pfr act. If you got the correct answer, well done! If you got an incorrect answer, where did the process break down? Did you remember that Pr differs from Pfr in that Pfr is required for active processes? Did you have trouble weighing the merits of Pr relative to Pfr to determine the correct answer?

4. TRUE
Clarify Question
· What is the key concept addressed by the question?
        o This question is asking about the importance of the root cap.
· What type of thinking is required?
        o You are being asked to take what you already know and apply it to the function of a root cap.
· What key words does the question contain and what do they mean?
        o Root cap, which is the covering that occurs at the end of a root.

Gather Content
· What do you already know about root caps? How does it relate to the question?
        o The gravity-sensing cells of the root are located in the root cap.
        o Studies have shown that removing the cap eliminates the root's ability to respond to gravity.

Consider Possibilities
· What other information is related to the question? Which information is most useful?
        o Since gravity-sensing cells are located in the root cap, removal of the root cap would eliminate this ability.

Choose Answer
· Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?
        o To answer this question you must connect the presence of gravity-sensing cells with the root cap. Removal of the root cap would remove gravity-sensing cells from the root.

Reflect on Process
· Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
· Apply level:
        o This question asked you to understand the nature of the root cap. Answering this question correctly depended on your ability to use the composition of the root cap in a new situation.  If you got the correct answer, great job! If you got an incorrect answer, where did the process break down? Did you remember that the root cap contains gravity-sensing cells? Did you have trouble extending the nature of the root cap to determine the correct answer?

5. FALSE
Other cell types do contain actin and myosin as well, which they use for intracellular transport, but not in the large quantities and layered organization seen in muscle cells.