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Levart [38]
3 years ago
13

Which energy containing molecule is readily used around the cell to power its processes?

Biology
2 answers:
Lubov Fominskaja [6]3 years ago
5 0
C. Adesonsine triphosphate
Gnoma [55]3 years ago
4 0

Answer:

Adenosine 5'-triphosphate, or ATP, is the most abundant energy carrier molecule in cells

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Sort the phrases into the appropriate bins depending on whether they are true only for channels, true only for carrier proteins,
ehidna [41]
<h2>The correct answer is explained below:</h2>

Explanation:

  • The Plasma membrane of a cell is made up of a phospholipid bilayer which has a hydrophobic core and hence is impermeable to water soluble or polar organic and inorganic molecules.
  • However, a cell can maintain proper homeostsis and undergo metabolism only when it is able to exchange different hydrophilic and polar organic and inorganic chemical components present inside the cell with those present outside the cell.
  • This necessitates the development of a "path" that could connect the cell interior to the cell exterior.
  • The path is developed by integral membrane protein that spans across the lipid bilayer opening on either side of the membrane, thereby connecting the cell interior with the cell exterior.
  • These integral membrane proteins are amphipathic in nature, that is, they are composed of both polar and non-polar amino acid residues. The amino acid residues are arranged such that the non polar amino acid residues face and undergo hydrophobic interactions with the water avoiding lipid molecules in the plasma membrane. The polar amino acid residues face towards the lumen of the opening in between the cell interior and exterior such that they can form hydrogen bonding with the water soluble polar organic or inorganic molecules and help them traverse the plasma membrane.
  • These integral membrane proteins are of two types: Channel proteins and Carrier proteins.
  • The Channel proteins:
  1. Form a direct and continuous opening across the plasma membrane. They can either remain always open or can be gated, that is, they open only on associating with specific signalling molecules.
  2. They transport solutes from a region of high electrical charge or concentration to a region of low electrical charge or concentration, that is, down the electrochemical or concentration gradient.
  3. They usually allow the easy and quick transport of water molecules and small ions across the membrane.
  • The Carrier proteins:
  1. They undergo a change in their conformation to translocate solute molecules across the plasma membrane and they do not form a continuous opening.
  2. When they open on one side of the membrane they are closed on the other side. They cannot remain, simultaneously, open on both sides of the membrane.
  3. They are required mainly for the translocation of small polar organic molecules across the plasma membrane down the electrochemical or concentration gradient.
  • For channels only:
  1. g.
  2. a.
  • For carrier proteins only:
  1. f.
  2. b.
  • For channels as well as carrier proteins both:
  1. c.
  2. e.
  3. d.
4 0
3 years ago
The oxygen-carrying capacity of the blood is evaluated using _______.
bonufazy [111]

Answer: hematocrit measurements and hemoglobin measurements

Explanation:

6 0
2 years ago
What type of protein regulates the turning on and off of genes?
Ivan

Answer:

Activator protein binding is thought to cause DNA to loop out, bringing the activator protein into physical proximity with RNA polymerase and the other proteins in the complex that promote the initiation of transcription. Different cell types express characteristic sets of transcriptional regulators.

7 0
3 years ago
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Consider two children with the same two parents. Would you expect them to have the same sets of chromosomes? Explain why or why
a_sh-v [17]

Answer:

It is likely that they will have a 50/50 split pair of the chromosomes

Explanation:

5 0
3 years ago
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Suggest two ways you could determine if two species are mimics in nature.
yawa3891 [41]

Answer:

A species could be a mimic if it's colors are slightly off from the creature they're trying to mimick, or, upon closer inspection, have a different body shape than the creature they're trying to mimick.

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3 years ago
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