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GuDViN [60]
3 years ago
9

Which structure allows molecules to pass in and out of the cell?

Biology
2 answers:
garri49 [273]3 years ago
4 0

The answer is the cell membrane in animal cells.

GrogVix [38]3 years ago
3 0

Answer:

b.chlorapast

Explanation:

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Positively charged DNA migrates more rapidly than negatively charged DNA b. Longer DNA fragments migrate farther on a gel than s
CaHeK987 [17]

Answer:

<h2>c. Migration distance on a gel is inversely proportional to DNA fragment size </h2>

Explanation:

  • Deoxyribonucleic acid is a genetic material that is a type of macromolecule.
  • It is made up of a monomer that ais called a nucleotide. Each nucleotide is made up of a deoxyribose sugar, a base, and a phosphate group.
  • Due to the presence of phosphate group DNA has negative property. When the DNA is separated by the gel electrophoresis method the size of the fragment of the DNA plays an important role.
  • Those DNA fragments that are small in size migrate faster than those DNA fragments that are larger in size.
  • So the migration distance is inversely proportional to the DNA fragment size.

6 0
3 years ago
How are girdles used in turtle respiration and be able to describe the morphology of turtle respiratory system in regards to inh
Ivahew [28]

Answer:

The pectoralis muscle moves the front limb inward and the transverse abdominal muscles moves the posterior limiting membrane up. The limbs are brought into the shell, pushing up on the lung, causing air to expel by the muscles contracting.

To Breathe air in, the serrates muscle pulls out, the abdominal oblique pulls down and the weight of the viscera allows air to flow in, via negative pressure.

Explanation:

hope this helps you if not sorry :)

6 0
3 years ago
While __________ bacteria retain carbol fuchsin after acid-alcohol treatment, __________ bacteria are decolorized by acid-alcoho
Lisa [10]
<span>While Acid fast bacteria retain carbol fuchsin after acid-alcohol treatment, non- Acid fast bacteria are decolorized by acid-alcohol.
Bacteria of genus mycobacterium are best stained using acid-fast method. A mixture of Phenol and fuchsin is carbol fuchsin. In acid-slcohol, acid is hydrochloric acid.</span>
6 0
3 years ago
How would clearing up pollution help address climate change?
Aleks [24]
Pollution adds heat to the air. for example: gas and smoke from cars and trucks etc. climate change will be affected because the heat will cause the weather and atmosphere around to get hotter. clearing pollution will keep the air cleaner. 
3 0
3 years ago
Read 2 more answers
1.
marta [7]

Answer:

hydropower wind and bio mass

Explanation:

the government has registered them as renewable energy

8 0
3 years ago
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