LABORATORY REVIEW
DIFFUSION AND OSMOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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passive transport involves moving solutes against the concentration gradient using ATP.
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active transport involves moving solutes against the concentration gradient using ATP.
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passive transport involves moving solutes with the concentration gradient using ATP.
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active transport involves moving solutes with the concentration gradient using ATP.
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Detailed explanation-1: -Active transport moves molecules and ions from lower concentration to higher concentration with the help of energy in the form of ATP. On the other hand, passive transport moves molecules and ions from a higher concentration to lower concentration without any energy.
Detailed explanation-2: -There are two major ways that molecules can be moved across a membrane, and the distinction has to do with whether or not cell energy is used. Passive mechanisms like diffusion use no energy, while active transport requires energy to get done.
Detailed explanation-3: -Passive transport does not require energy while active transport needs energy to take place. Both diffusion and osmosis do not require energy because the substances move down the concentration gradient, from high to low concentration.
Detailed explanation-4: -area with lower concentration. The difference between the concentrations is called the “concentration gradient”. Diffusion goes down the gradient until an equilibrium is reached.
Detailed explanation-5: -Which of the following is a correct difference between active transport and facilitated diffusion? Active transport involves transport proteins, and facilitated diffusion does not. Facilitated diffusion can move solutes against a concentration gradient, and active transport cannot.