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Dovator [93]
3 years ago
5

Which methods reduce friction? O increasing speed O lubricating surfaces O using sticky materials O increasing surface roughness

​
Biology
1 answer:
Afina-wow [57]3 years ago
6 0

Answer:b)lubricating surfaces

Explanation:took it on edge hope this helped

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The plasma membrane represents an energetic barrier to the free diffusion of ions from the extracellular space into the cytoplas
Marysya12 [62]

Answer:

Why are molecules such as valinomycin effective at transporting ions across the membrane?

Valinomycin is effective as transporting ions across the membrane because it is no charged, so it can carry ions.

Why would a drop in temperature to or below the transition temperature limit valinomycin mediated K+ transport across the plasma membrane?

Valinomycin is limited by temperature because its activity is highly sensitive and it depends on a stable and an average temperature.

Explanation:

Valinomycin is effective at transporting ion across the membrane because is an antibiotic that alternates hydroxy and amino acid, ans it helps membranes to be permeable. Valinomycin is a cyclic molecule that helps in ions transportation through membranes. Also, antibiotics have a temperature range of activity, that's why it is sensitive to changes.

8 0
3 years ago
An astronomical unit is _____.
harina [27]
1. Distance from the Earth to the Sun
2. Hurt your hand from the reaction force (Newton's 3rd law is every action has an equal and opposite reaction)
3. The Earth to rotate slightly slower (I think)
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7 0
3 years ago
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Lunna [17]
7 Herbivore
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4 0
3 years ago
List what Eukaryotic cells and prokaryotic cells have.
wolverine [178]

Answer:

Summary

All cells have a plasma membrane, ribosomes, cytoplasm, and DNA.

Prokaryotic cells lack a nucleus and membrane-bound structures.

Eukaryotic cells have a nucleus and membrane-bound structures called organelles.

Explanation:

Eukaryotic Cells

Eukaryotic cells usually have multiple chromosomes, composed of DNA and protein. Some eukaryotic species have just a few chromosomes, others have close to 100 or more. These chromosomes are protected within the nucleus. In addition to a nucleus, eukaryotic cells include other membrane-bound structures called organelles. Organelles allow eukaryotic cells to be more specialized than prokaryotic cells. below are the organelles of eukaryotic cells , including the mitochondria, endoplasmic reticulum, and Golgi apparatus.

Prokaryotic cells are usually smaller and simpler than eukaryotic cells. They do not have a nucleus or other membrane-bound organelles. In prokaryotic cells, the DNA, or genetic material, forms a single large circle that coils up on itself. The DNA is located in the main part of the cell.

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3 years ago
What types of things are the energy subsidy used for?
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<span>Non-renewable energy sources to run cultivates through water system, transportation, arrangement, gather, preparation pesticides Energy subsidy is the measure of vitality and energy that is important to make the nourishment that we eat so on the off chance that we eat something that has 2 calorie however requires 6 calories to influence we to have the appropriate energy of 6</span>
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4 years ago
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