OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Mitochondria are storage sites for molecules which move by active transport
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Mitochondria produce the carrier proteins
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Mitochondria release energy, which is needed for active transport
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None of the above
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Detailed explanation-1: -Mitochondria is more prevalent in cells where active transport occurs more frequently. Mitochondria is the site of respiration in cells, therefore more energy will be released.
Detailed explanation-2: -Active transport is a process that is required to move molecules against a concentration gradient. The process requires energy. Energy for the process is acquired from the breakdown of glucose using oxygen in aerobic respiration. ATP is produced during respiration and releases the energy for active transport.
Detailed explanation-3: -The energy for active transport comes from the energy-carrying molecule called ATP (adenosine triphosphate). Active transport may also require transport proteins, such as carrier proteins, which are embedded in the plasma membrane. Two types of active transport are pump and vesicle transport.
Detailed explanation-4: -Active transport requires energy to move substances across a plasma membrane, often because the substances are moving from an area of lower concentration to an area of higher concentration, or because of their large size.