Which climatic zone is always hot and humid?

How many times must the Calvin-Benson-Bassham Cycle take up CO2 in order for subsequent synthesis to produce sufficient pool of

slamgirl [31]

Answer:

B (3 times)

Explanation:

Calvin cycle is the light independent phase of photosynthetis, which occurs after the completion of the light dependent phase. The Calvin cycle can be categorised into three stages viz: Fixation, Reduction, and Regeneration.

Reduction: In the stroma (matrix of the chloroplast), Co2, which enters via the stomata is fixed. A plant enzyme known as Ribulosephosphate carboxylase (RUBISCO) catalyzes the reaction between 3 molecules of CO2 and 3 molecules of Ribulosebiphosphate (RUBP), a Co2 acceptor. RUBP is a 5-carbon molecule.

N.B: per cycle, only one CO2 and RUBP molecule is involved, and for each CO2 that reacts with one RUBP, 2 molecules of 3-phospho glycerate (PGA) is produced. PGA is a 3-carbon molecule. In total for the 3 molecules of CO2 and RUBP, 6molecules of PGA is formed.

Reduction: NADH from the light stage is used to reduce 6 molecules of PGA to 6 molecules of Glyceraldehyde-3-phosphate (G-3-P) with ATP as the energy source.

Regeneration: Only one of the G-3-P molecules leaves the Calvin cycle to contribute to the formation of other compounds needed by the plant. Because G3P has 3-carbon atoms, it takes 3-times to fix 3molecules of CO2 in order to be able to export one G3P since one CO2 and RUBP molecule is used per cycle.

But each cycle forms 2molecules of G-3-P, therefore, three cycles will form 6molecules of G-3-P. One is exported out of the Calvin cycle and the remaining 5 G-3-P molecules are used to regenerate RUBP, which enables the cycle to continue by accepting C02 again.

Please note that G-3-P (triose phosphate) is only ready for export when the net carbon atoms are sufficient for RUBP regeneration.

3 0

4 years ago

Why is it important that an experiment include a control group?

Ivanshal [37]

B
(without the control you won't know what a normal result would be without the independent variable).

8 0

3 years ago

Which of the following is part of a leaf?

Svetlanka [38]

All of the above u are welcom

6 0

4 years ago

Leya [2.2K]

Answer:

I only have answers 2-4 working on 1 now and the photos don't want to work sorry Bold are the Answers Hope this Helps :)

Explanation:

2. What procedure did you use to complete the lab?

Outline the steps of the procedure in full sentences.

For the first one, it said that it was starting to rain so I chose drizzle. The slope was gentle. The surrounding terrain was plains which all of this was shown in the picture. For the second one, it was raining but not downpour so I chose steady rain. The slope was gentle. The surrounding terrain was plains which all of this is shown in the picture. For the third one, it said it was starting to rain so I chose drizzle. The slope was steep. The surrounding terrain was mountains which I believe was all in the photo. For the fourth one, it said it was raining so I chose Steady rain. The slope was steep. The surrounding terrain was mountains. For the last one, it said that it was downpouring and I chose downpour. The slope was gentle. The surrounding terrain is plains which this was all shown in the picture and down below for question three.

Section II: Observations and Conclusions

3. What charts, tables, or drawings would clearly show what you have learned in this lab?

Each chart, table, or drawing should have the following items:

An appropriate title

Appropriate labels

Low-Gradient, Low-Velocity Stream

Observations:

Stream Slope: Gentle

Amount of Rainfall: Light Drizzle

Surrounding Terrain: Plain

Low-Gradient, High-Velocity Stream

Observations:

Stream Slope: Gentle

Amount of Rainfall: Steady Rain

Surrounding Terrain: Plain

High-Gradient, Low-Velocity Stream

Observations:

Stream Slope: Steep

Amount of Rainfall: Light Drizzle

Surrounding Terrain: Mountains

High-Gradient, High-Velocity Stream

Observations:

Stream Slope: Steep

Amount of Rainfall: Steady Rain

Surrounding Terrain: Mountains

Low-Gradient, High-Volume Stream

Observations:

Stream Slope: Gentle

Amount of Rainfall: Downpour

Surrounding Terrain: Plains

4. If you could repeat the lab and make it better, what would you do differently and why?

There are always ways that labs can be improved. Now that you are a veteran of this lab and have experience with the procedure, offer some advice to the next scientist about what you suggest and why. Your answer should be at least two to three sentences in length.

If I were able to repeat the lab and do it differently I would try to do two different things to improve it. I would try to create the model in a simpler manner that allowed me to better see how the erosion factored in. I would also try to take more detailed notes on it if I were to repeat it.

3 0

4 years ago

Identify the following structures of a plant cell using the diagram to the right.

Slav-nsk [51]

Answer:

1.C

2.E

3.F

4.B

5.G

6.D

7.A

Explanation:

5 0

3 years ago