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stepladder [879]
3 years ago
15

To test the hypothesis that a particular plant synthesizes storage lipids by using glyceraldehyde 3-phosphate (G3P) from photosy

nthesis, a researcher plans to use radiolabeled precursors to track the molecules through the biosynthetic pathway. Which radiolabeled precursors is most appropriate for the researcher to use?
Biology
1 answer:
Nookie1986 [14]3 years ago
8 0

Answer:

Radiolabeled carbon atom in CO2

Explanation:

Photosynthesis is the process by which green plants fix the atmospheric CO2 into glucose. The process includes carbon fixation during which RuBisCo enzyme catalyzes the reaction of CO2 and a five-carbon compound called RuBP to form 3-phosphoglycerate (3-PGA). The 3-PGA enters the reduction phase of the Calvin cycle wherein it is reduced into glyceraldehyde 3-phosphate. Two molecules of glyceraldehyde 3-phosphate make one molecule of glucose.

To test the hypothesis that glyceraldehyde 3-phosphate from photosynthesis is used by plants to synthesize lipids, radiolabeled CO2 must be used. The radiolabeled carbon atom in the CO2 would be fixed in the form of glyceraldehyde 3-phosphate. If the plant uses glyceraldehyde 3-phosphate as a precursor for lipid synthesis, the synthesized lipid molecules would carry the radiolabeled carbon atom.

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A researcher uses a radioactively-labeled carbon dioxide molecule to evaluate photosynthetic rate. In her experiments, the resea
Vedmedyk [2.9K]

Answer:

Answer is Calvin cycle.

Explanation:

Calvin cycle is very important to plants because it helps in the conversion of organic products for the usefulness of plants. This is because the carbon dioxide and water are converted to glucose, which is useful to plants.

Calvin cycle can be explained as the production of glucose through the use of chemical energy from NADPH and ATP, produced in light reactions, to convert the atmospheric carbon dioxide to RuBP, which is a five-carbon molecule.

5 0
3 years ago
In some instances, the levels of LDL cholesterol exceed the ability of the body to maintain homeostasis, and as a result, the ex
Luba_88 [7]

Answer:

The correct order is 3, 4, 2 and 1.

Explanation:

Atherosclerosis refers to the condition in which the plaque gets accumulate within the blood vessels' walls. In the condition, inflammation occurs in the arteries' inner lining. The following is the sequence of events that results in atherosclerosis is:  

1. A huge concentration of LDL cholesterol gets gathered within the inner walls of the arteries.  

2. This causes discharging of macrophages to the site.  

3. The engorgement of WBCs takes place with fatty deposits.  

4. The hardening of plaques takes place, which eventually prevents the flow of blood in the prime arteries.  

8 0
3 years ago
The signs used depend on the species being surveyed and include the presence of runways and tracks on *
amm1812

Answer:

(a). soft substrates

Explanation:

Mobile organisms can be measured by both direct and indirect methods. Direct methods may involve observing the actual behavior (e.g., scoring via timing). Moreover, indirect methods are those where the technique used depends on the species being examined, collecting information such as through recording of tracks in the soft substrate (e.g., mud, sand, snow), presence of fur/feathers, droppings (mammals), etc. For example, indirect observation of insects may involve the determination of exoskeletons, sounds, etc.

5 0
3 years ago
Which tissues have little to no functional regenerative capacity?
sladkih [1.3K]
Cardiac muscle, neurons
8 0
2 years ago
Identify one way in which bacteria differ from humans.
strojnjashka [21]
A. Bacteria are single-celled.
I think it would be this because humans have way more than one cell, and the other ones are the same as us.
Just guessing
4 0
3 years ago
Read 2 more answers
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