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irga5000 [103]
3 years ago
11

How is Passive transport different from Active Transport?

Biology
1 answer:
sp2606 [1]3 years ago
3 0

Answer:

The movement of molecules across a membrane without the input of energy is known as passive transport. When energy (ATP) is needed, the movement is known as active transport. Active transport moves molecules against their concentration gradient, from an area of low concentration to an area of high concentration.

Explanation:

got this from somewhere hope it helps. if its wrong im  very sorry  

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What isthe differnce between cohesion and adhesion?
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Adhesion refers to the clinging of unlike molecules and cohesion refers to the clinging of like molecules.
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4 years ago
2) Which item listed is not needed by living organisms?
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Sand

Explanation:

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8 0
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The volume of a certain gas is 29.3 liters at STP. What would be the volume of the same gas at 1.39 atmospheres and -23.00C? (R=
Andrew [12]

Answer:

19.32L

Explanation:

Given parameters:

Volume of the gas at STP = 29.3liters;

      Using this information first, let us find the number of moles of the gas.

                  Number of moles = \frac{volume of gas}{22.4}

With the number of moles, we can further solve this problem;

                 Number of moles  = \frac{29.3}{22.4}   = 1.31 moles

More parameters;

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temperature  = -23°C  = -23 + 273  = 250K

Unknown:

Volume of gas  = ?

Solution:

The ideal gas equation is the perfect fix to solve this problem.

It is mathematically expressed as;

              Pv  = nRT

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           R is the gas constant

            n is the number of moles

            T is the temperature

     Input the parameters;

             1.39 x V  = 1.31 x 0.082 x 250

                     V  = 19.32L

7 0
3 years ago
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3 years ago
Which statement about endotherms and ectotherms is correct?
ankoles [38]

Answer:

3.  Endotherms spend more energy on internal temperature regulation compared to ectotherms.

Explanation:

Ectotherms, are considered  as cold-blooded animals (reptiles and amphibians),  and are organisms that don't have the ability to generate enough heat to keep themselves warm. Endotherms, in contrast, do possess the ability to generate their own body heat.

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7 0
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