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Marizza181 [45]
3 years ago
6

A cell membrane is relatively impermeable to substances that are

Biology
1 answer:
11Alexandr11 [23.1K]3 years ago
8 0
Large polymers, ions and charged molecules
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Which of the following is a molecule?<br> A. Argon<br> B. Water<br> C. Nitrogen<br> D. Uranium
san4es73 [151]

Answer:

Argon- a chemical element

Water- polar molecule

Nitrogen- chemical compound

Uranium- chemical element

Hope this helps! :)

Please give brainliest

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Explanation:

In conclusion B. water is a molecule

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Which is a function of nucleic acids?
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they provide structure

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In the cells of most organisms, genetic information is contained in the:
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The nucleus

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Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA). Mitochondria are structures within cells that convert the energy from food into a form that cells can use.

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Need help with number 31:
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its C.specific sequences bases in DNA reproductive cells.

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Design an experiment where you would determine how quickly lactaid works to break down milk sugar
xxMikexx [17]

Answer:

Gather 11 Cups And then fill each cup with 5 ounces of whole milk, next is take the first cup to add a known quantity of lactaid. As A Control take another cup and do not add any lactaid. After 1 Minute, pour a known quantity of benedicts into cups of milk. Record the colour ( blue is the least amount of glucose progressing to green, then yellow, orange, red and brick/red brown). Take another cup of milk and then add the lactaid and wait for 5 minutes... Next is add the benedicts. Record the color, repeat steps 7 - 10 adding 5 minute each time until there are no cups left ( 15 minutes, 20,25,30,35,40,45) .

For the last is graph the data and forms conclusions ..

  • This is the right answer.
  • Hope it helps.
6 0
2 years ago
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