Answer:
example of active transport is the sodium-potassium pump, which moves sodium ions to the outside of the cell and potassium ions to the inside of the cell.
Plants need water
and the second option is true
Answer:
[A] Cell
[D] Organ System
[D] Skeletal System
Explanation:
[1] The smallest independently functioning unit of an organism is a(n) cell.
[2] A collection of similar tissues that performs a specific function is an Organ system.
[3] The body system responsible for structural support and movement is the Skeletal System
[RevyBreeze]
The correct answer is the cell membrane.
A cell membrane is formed of phospholipids, that is, a kind of fat or lipid, and proteins. Cell membranes are semipermeable that signifies that the molecules can travel via them. This is very essential for a cell to thrive.
A cell membrane is considered as a semi-permeable membrane as it permits some of the molecules to pass through them and ceasing others to go through them. It safeguards the intracellular organelles from the external surroundings. It selectively permits the conduction of molecules in and out of the cell.
It makes proteins and lipids
it controls the calcium levels in your muscles
it detoxifies poisons, alcohol and even drugs
hope this helped
