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lina2011 [118]
3 years ago
14

Reactions that produce energy are said to be

Biology
2 answers:
mezya [45]3 years ago
7 0
Exothermic reactions ?
rjkz [21]3 years ago
3 0

Answer:

chemical reations

Explanation:

hope this helps

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4 0
3 years ago
Active transport and facilitied diffusion relation
statuscvo [17]

Answer:

Both facilitated diffusion and active transport are selective processes. Only selective molecules are allowed to cross the membrane. They utilize carrier proteins to move across the membrane.

Explanation:

Diffusion is the process by which molecules move across a membrane respective of the concentration gradient. The plasma membrane is a <em>selectively permeable membrane</em> which allows specific molecules to move across the concentration gradient.  

Molecules migrate from a region of higher concentration to a lower concentration in case of diffusion. It can be classified into simple diffusion and facilitated diffusion. These are examples of <em>passive transport</em>.

In facilitated diffusion molecules move across the concentration gradient with the help of <em>carrier proteins or channel proteins</em>. The carrier proteins bind to the molecule which has to be transported and change conformation to allow it to cross the membrane. For example glucose molecule is carried across through <em>GLUT transporter</em>. <em>Channel proteins</em> open a channel inside the membrane and molecules get transported across the gradient.

Active transport carries molecules against the concentration gradient with the assist of energy. ATP hydrolysis is utilized to generate energy. As a result of active transport, the molecules are aggregated on one side of the membrane.

7 0
3 years ago
Which type of substance adds nutrients to the soil that plants take in through their roots?
gulaghasi [49]

The answer is A. Fertilizer

The other answer choices don't make sense Herbicide is a poison that kills plants, Pesticide is an insect killer, while a Growth Hormone is designed to help the plant grow not to put nutrients into the soil.

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3 years ago
When gains associated with illness outweigh the costs, _____________ may result.
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The correct answer is "letter c. malingering."

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Which observation will best determine whether raccoons are more closely related to bears or to cats?
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Either compare the skeletons of each animal to see which ones look the most like a raccoon? Or it’s d
6 0
2 years ago
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