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murzikaleks [220]
3 years ago
7

The main factors that determine aquatic biomes include

Biology
2 answers:
Lady_Fox [76]3 years ago
6 0

first and last answer choices

igor_vitrenko [27]3 years ago
5 0
^^ the correct answer.
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Your lab group is experimenting with the diffusion of molecules across a membrane. Dialysis tubing is used as a model cell membr
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Answer: the membrane channel

Explanation:

In passive diffusion, the small water molecules can move across the phospholipid bilayer seen in blue. This layer acts as a semi-permeable or selectively permeable membrane; its hydrophilic heads are attracted to water (seen facing outwards) while its water-repellent hydrophobic tails face towards each other- allowing  molecules of water to diffuse across the membrane along the concentration gradient.

Thus the water will move from an area of high concentration  to an area of low concentration, until the system reaches a steady state called equilibrium- after this, there will be no net movement of water. Similarly via osmosis, the water passes through the membrane due to the difference in osmotic pressure on either side of the phospholipid bilayer this means that the water moves from regions of high osmotic pressure/concentration to regions of low pressure/ concentration to a steady state.

The dialysis tubing mimics a semi permeable membrane; it only allows water and small molecules of iodine to cross into the bag containing starch. The tubing is impermeable to starch;  these large molecules require the aid of protein omplexes called membrane channels, in order to move across the membrane and against the concentration gradient.

5 0
3 years ago
A ________ is a model that imitates a real-world situation. What goes in the blank? Also my other question is, A _________ is an
Marina CMI [18]
First one is Model and second one is Inference
8 0
3 years ago
Which parts of the amino acids x and y are involved in the formation of a peptide bond?
NeTakaya

Answer:

Carboxyl group and amino group.

Explanation:

Amino acids have three parts which are the carboxyl group, amino group and the side chain. When forming a peptide bond, the carboxyl group of one amino acid forms bonds with the amino group of the other one to form the peptide bonds between them.

I hope this answer helps.

6 0
3 years ago
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Christopher consumed food tainted with listeria monocytogenes. when this bacterium enters the digestive tract, it causes illness
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<h3><u>Answer</u>;</h3>

D. The Peyer’s patches can release B cells to destroy Listeria

<h3><u>Explanation;</u></h3>
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  • It also helps defend the body against infection by supplying disease-fighting cells called lymphocytes.
  • <u>The lymph contains a high number of a type of white blood cells called lymphocytes. These cells fight infection and destroy damaged or abnormal cells</u>.
3 0
3 years ago
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