Oxygen moving from the bloodstream into a cell down a concentration gradient is a form of
A: osmosis
B: endocytosis
C: Active transport
D: passive transport
Is the answer D?
Yes.
The answer is D: passive transport. Hope this helps
The answer is D. This is because it is a certain transport and ya
yep its D [my grade:A-]
yes
yes its d
No, the correct answer is C: Active transport.
To understand why active transport is the correct answer, let's break down the process mentioned in the question.
When oxygen moves from the bloodstream into a cell, it needs to move across the cell membrane. This movement occurs down a concentration gradient, which means that oxygen molecules move from an area of higher concentration (in the bloodstream) to an area of lower concentration (inside the cell). This type of movement is known as passive transport.
However, in the case of oxygen moving into a cell, it does not happen through passive transport. Instead, it involves active transport. Active transport refers to the movement of substances across a cell membrane, against their concentration gradient (from lower to higher concentration), with the use of energy in the form of ATP (adenosine triphosphate).
In the scenario described, as oxygen is moving from an area of lower concentration (inside the cell) to an area of higher concentration (in the bloodstream), it is moving against the concentration gradient. This requires energy to be expended by the cell, making it an example of active transport. Therefore, the correct answer is C: Active transport.