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27 Nov 2019

Organelles and their functions

The digestive organelle in cells requires a pump to moveH+ against its concentration gradient to maintain anacidic environment. Based on this information, determine whichgroup of terms can be used to explain this to a classmate.

(a) Mitochondria, uniport, active transport

(B)Lysosome, uniport, active transport

(C)Mitochondria, symport, passive transport

(D)Lysosome, symport, passive transport

(E)Mitochondria, channel protein, active transport

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Jarrod RobelLv2
14 Feb 2019
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Related questions

A sodium potassium pump is used to pump sodium against its concentration gradient. This imbalance of sodium ions is then used to transport glucose across the membrane. This is:

a) active transport followed by passive transport

b) passive transport followed by active transport

c) primary active transport followed by secondary active transport

d) secondary active transport followed by primary active transport

Select all of the following options that is a difference between passive transport and active transport.

A. Passive transport requires energy while active transport does not

B. Active transport requires energy while passive transport does not

C. Passive transport always involves substances moving to a higher concentration and active transport involves substances moving to a lower concentration

D. Active transport always involves substances moving to a higher concentration and passive transport involves substances moving to a lower concentration

E. Active transport is the same as passive transport only without the use of a transport protein

You are in the library researching the mechanisms that eukaryotic cells use to acidify some of their organelles. In several particular species of amoeba, you find that the cells use a H+ ATPase (AKA a proton pump) to acidify the inside of their lysosomes, while many plant cells use a proton/Cl- antiporter to keep the interior of their vacuoles at a pH of ~6.3. Compare these two mechanisms of proton transfer, specifying what is allowing the H+ to enter these organelles. In your answer, specify whether each of these mechanisms is an example of simple diffusion, passive transport, or active transport. Would these transporter proteins be channels or carriers? If a mechanism is an example of active transport, specify how the energy requirement for transfer is being satisfied.

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