which of the following is not a symptom of respiratory problems?
Answer:
chemical burns
Explanation:
I'm pretty sure this is it
Answer: Chronic back pain
Explanation: I got it right on Edge!!!!
write any two features of cell?
What condition must be true if a substance enters the cell by active transport
For a substance which enters the cell by active transport, it should have a concentration gradient, energy, and transport proteins.
What is active transport?It is a process through which molecules move from a region of higher concentration to a region of lower concentration.
The following conditions must be true for active transport:
Concentration gradient-The concentration of substance must be higher outside the cell than inside the cell.Energy-Active transport requires energy in the form of ATP.Transport proteins- It allows specific transport proteins such as pumps to facilitate movement of substance across the cell membrane.Overall, active transport allows cells to bring in substances that they need even if the concentration of those substances is low outside the cell.
For more details about active transport, visit:
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