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faust18 [17]
2 years ago
7

Please help im timed what are the functions of a root? (select all that apply). they absorb water from the soil. they repair car

bon dioxide for photosynthesis. they hold the plant in the ground. they take in nutrients from the soil.
Biology
1 answer:
Lunna [17]2 years ago
7 0

Answer:

All of them are correct except for, "they repair carbon dioxide for photosynethesis because they just don't.

Explanation:

They don't

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Which of the following statements is the most likely explanation for plant withering due to leaky membranes in cold temperatures
podryga [215]

Answer:

C. H+ ions do not accumulate inside the thylakoid, so ATP synthase makes too little ATP.

Explanation:

Plant withering refers to the virtual death of plant cells due to lack of food. During the light-dependent reactions of photosynthesis, ATP needed for the synthesis of sugar (food) is created in the thylakoid membrane of the CHLOROPLAST of plant cells.

In the light-dependent reaction, hydrogen ions (H+) builds up/accumulate in the thylakoid lumen to create an electrochemical or proton gradient i.e. a difference in the concentration of H+ ions across the membrane. The hydrogen ions passes through a protein complex called ATP synthase, which forms ATP from ADP (by adding phosphate group), from the energy generated by the electrochemical gradient formed as a result of hydrogen in (H+) build up.

Hence, a plant that possess leaky membrane due to the cold temperature will likely wither because H+ ions are not able to accumulate inside the thylakoid causing a proton gradient, so ATP synthase makes too little ATP.

4 0
3 years ago
The role of phospholipids, proteins and carbohydrates in membranes
SOVA2 [1]

Membrane proteins can function as enzymes to speed up chemical reactions, act as receptors for specific molecules, or transport materials across the cell membrane. Carbohydrates, or sugars, are sometimes found attached to proteins or lipids on the outside of a cell membrane.

8 0
3 years ago
Which of the following sequences of processes correctly reflects the central dogma?
Lapatulllka [165]
Transcription, Translation, protein synthesis
4 0
3 years ago
HELP PLEASE PLEASE PLEASE! ILL GIVE BRAINLIEST!
jasenka [17]

Answer:

A control variable is the variable in the experiment that does not change.

Explanation:

If you are testing how seeds grow in different types of water, and you add 1tbps of salt to one pot of water with the plant, and then added 2tbps to another pot of water with the plant. The control variable in this experiment would be the water with no salt because it was not altered.

FYI I did not pull from google. Good luck!

5 0
3 years ago
A woman with type AB blood is married to a man with type O blood.
Viktor [21]

Answer:

Jordan

Explanation:

In most cases, an O parent and an AB parent will have only A or B kids.

7 0
2 years ago
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