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posledela
3 years ago
8

List 3 ways molecules cross a cell membrane without using energy

Biology
1 answer:
harkovskaia [24]3 years ago
5 0
1. Diffusion
2. Osmosis
3. Facilitated Diffusion
You might be interested in
Question 3
shepuryov [24]

The statements Molecule B can be used to produce molecule A and Molecules B and C interact so that amino acids can be joined together are TRUE regarding the structures shown in the diagram (Options B and E).

<h3>What are transcription and translation?</h3>

Transcription is the process by which a DNA template (molecule B) can be used to synthesize a complementary RNA (molecule A), while translation is a process in which an sequence is used as templates to generate a protein, which requires tRNAs (molecule C) to trasnport amino acids to the ribosomes.

Therefore, with this data, we can see that DNA is molecule B used to create RNA, which is molecule A, while tRNA is represented by molecule C and it is used during translation.

Learn more about transcription and translation here:

brainly.com/question/25703686

#SPJ1

7 0
1 year ago
how many more atoms does ethylene have than carbon monoxide? list the type and number of each atoms PLEASE HELP ME
Valentin [98]
Carbon Monoxide has 2 atoms total - one atom of carbon (C) and one atom of oxygen (O) chemical formula is CO

Ethylene has 6 atoms total, 2 atoms of carbon (C) and 4 atoms of hydrogen (H), chemical formula is C2H4.

Ethylene has four more atoms than carbon monoxide (6-2) = 4
8 0
3 years ago
A DNA molecule produced by combining DNA from different sources is known as
Digiron [165]

Answer:

A DNA molecule produced by combining DNA from different sources is known as recombinant DNA.​

Explanation:

Recombinant DNA (rDNA) can be obtained by coupling DNA fragments from different sources, a process that is performed at the restriction site level and uses enzymes.  

Once rDNA has been designed —cutting out fragments of DNA that are then reassembled— it must be brought to a specific location in the cells, to be copied and expressed, using means of transport called vectors.

<u>DNA recombination</u> is performed in biotechnology laboratories specialized in the manipulation of genetic material.

The other options are not correct because:

  • <u><em>Mutant or mutated DNA</em></u><em> is a DNA molecule with an alteration of its nitrogenous base sequence </em>
  • <u><em>Hybrid DNA</em></u><em> is a variant of recombiant DNA, in which only two DNA molecules from different sources are used. </em>
  • <u><em>Polyploid</em></u><em> refers to cells containing the genome of different species.</em>
8 0
2 years ago
Did humans evolve from monkeys
Amiraneli [1.4K]
No, but we share a common ancestor.
4 0
2 years ago
Read 2 more answers
Why can you see the cell membrane in cheek cells but not in onion or elodea cells
snow_tiger [21]

Answer:

No you can not see them

Explanation:

7 0
3 years ago
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