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PIT_PIT [208]
3 years ago
7

Which reactant in photosynthesis contributes mass to the growing plant over time?

Biology
2 answers:
Rama09 [41]3 years ago
8 0
Carbon dioxide
This is why CO2 is not a waste product, it is all kept for mass and growth of the plant
Andrej [43]3 years ago
7 0
Carbon dioxide contributes mass to the growing plant over time
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In cells, hydrogen proxide is converted to water and oxygen through the activity of ____
vovikov84 [41]

Answer:

enzyme catalase

Explanation: When the enzyme catalase comes into contact with its substrate, hydrogen peroxide, it starts breaking it down into water and oxygen.

6 0
2 years ago
You first use PCR to amplify the fragment so that there is sufficient DNA for sequencing. You carry out dideoxy sequencing and t
dsp73

Answer:

The first attached figure below shows the design of an agarose gel with four sequencing reactions. The second figure presents a photo of an agarose gel, so that you can better understand how the bands are represented in this gel.

Explanation:

To view the bands of four sequencing reactions on an agarose gel, you will need to use a melted agarose gel, plastic combs suitable for that reaction and a container suitable for that type of gel. You will place the plastic combs in the container and pour all the gel into the vat and wait for the melted gel to solidify. The plastic combs will form holes in the hardened gel where the DNA samples will be placed.

Once the gel is hardened, you will remove the plastic combs and begin to apply the sequenced DNA.

The sequenced DNA samples will be mixed with a dye, usually bromophenol blue, which will allow you to visualize the bands formed on the gel. You will also apply the dye to a sample without DNA containing only the dye, which serves as a comparison for the size of the bands.

Each sample of DNA will be plated in the column of holes formed by the plastic combs. Then, this container, with the gel, will be placed in a larger container that contains a loading buffer. The larger container will be closed and an electric field will be applied that will force the DNA samples to be moved from one pole to another inside the container, in this case, the samples leave the negative pole for the positive pole.

After a few minutes, it is possible to visualize the DNA displacement and at the end of the procedure it will be possible to visualize the formation of bands as shown in the drawing and in the figure below. The size of these bands can be compared and analyzed.

3 0
2 years ago
HELP!
lidiya [134]

Answer:

A. Compounds contain fixed ratios of different elements.

Explanation:

Water always has this 2:1 ratio of hydrogen to oxygen. Like water, all compounds consist of a fixed ratio of elements. It doesn't matter how much or how little of a compound there is. It always has the same composition.

3 0
3 years ago
If a solution has a perfectly neutral pH, what is the concentration of hydronium ions in the solution? A) 7 M B) 10-7 M C) 107 M
e-lub [12.9K]
10-7Mis your answer .-.
5 0
3 years ago
PLEASE HELP!! (Answer appropriately) USE ARROWS
horrorfan [7]

Answer:

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4 0
3 years ago
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