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mestny [16]
3 years ago
8

Describe passive transport using the words concentration and concentration gradient

Biology
2 answers:
Monica [59]3 years ago
5 0
Passive transport is a movement of biochemicals and other atomic or molecular substances across cell membranes through concentration gradients without need of energy<span> input</span>
dsp733 years ago
3 0
Passive transport<span> is a movement of </span>biochemicals<span> and other </span>atomic<span> or </span>molecular<span> substances across </span>cell membranes through <span>concentration gradients</span><span> without need of </span>energy<span> input. Unlike </span>active transport<span>, it does not require an input of cellular energy because it is instead driven by the tendency of the system to grow in </span>entropy<span>. The rate of passive transport depends on the </span>permeability<span> of the cell membrane, which, in turn, depends on the organization and characteristics of the membrane </span>lipids<span> and </span>proteins<span>. The four main kinds of passive transport are simple </span>diffusion<span>, </span>facilitated diffusion<span>, </span>filtration<span>, and </span>osmosis.
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When a child goes DOWN a slide what type of transport is that most like? Explain. When a child goes UP a slide what type of tran
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The answer would be:

Passive transport

Active transport

Why?

There are two ways molecules can move across membranes within the cell. What makes the two different is the use of energy.

PASSIVE transport is the movement of molecules DOWN the concentration gradient. The molecules move from areas of higher concentration to lower concentration. This does nor require energy. Comparing it to the scenario, the child starts from a higher area and ends at a lower area. Going down a slide does not take energy. The child simply goes down it.

When you talk about the child going UP a slide, think ACTIVE transport. Unlike passive transport, active transport requires energy, because the molecules move AGAINST the concentration gradient.  The movement of molecules in this type of transport is the opposite, it goes from lower areas of concentration to higher areas of concentration.

Hopefully, this has been educational for you and was able to help you understand the difference between the two.

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3 years ago
Clinical indications for the use of adrenergic drugs stem mainly from their effects on the heart, blood vessels, and bronchi. Th
uranmaximum [27]

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As a bronchodilator in asthma attack, Adrenergic drugs relax bronchial muscle spasm then dilate the bronchial trees thereby allowing proper ventilation of the lungs example: Aminophylline

Adrenergic drugs like epinephrine are used in anaphylaxis/ allergic reactions as well as hypersensitivity reactions to inhibit the action of histamines and as such relieve allergic reactions.

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A pioneer species is...
ivanzaharov [21]

Answer:

b

Explanation:

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If we pick a plant and an animal cell, which one of them would lose its shape
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Answer:

the animal cell would lose its shape as the plant cell has a cell wall which gives shape and protection.

by the animal cell don't have a cell wall.

hope it was helpful

Explanation:

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Answer should be
B) That container was a control - a basis for comparison.
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