Question

signal sequence
endomembrane system
motor protein
phosphorylation
a collection of machines, cytoskeletal components, and organelles that together produce, process, and transport proteins and lipids destined for organelles, the cell membrane, or outside the cell.
a series of amino acids at the start of a protein that allows that protein to enter the endomembrane system.
a protein that functions in cell movement through shape changes caused by phosphorylation or dephosphorylation.
the addition of a phosphate group (po₄³⁻) to a protein or other molecule. in most cases, the phosphate group comes from atp.
did you fully understand the concept covered in this

Explanation:

1. The endomembrane system is a collection of components that produce, process, and transport proteins and lipids for organelles, cell - membrane, or outside the cell.
2. A signal sequence is a series of amino acids at the start of a protein that helps it enter the endomembrane system.
3. Motor proteins function in cell movement through shape - changes due to phosphorylation or dephosphorylation.
4. Phosphorylation is the addition of a phosphate group to a protein or other molecule, usually from ATP.

Answer:

Signal sequence - A series of amino acids at the start of a protein that allows that protein to enter the endomembrane system.
Endomembrane system - A collection of machines, cytoskeletal components, and organelles that together produce, process, and transport proteins and lipids destined for organelles, the cell membrane, or outside the cell.
Motor protein - A protein that functions in cell movement through shape changes caused by phosphorylation or dephosphorylation.
Phosphorylation - The addition of a phosphate group ($PO_{4}^{3 - }$) to a protein or other molecule. In most cases, the phosphate group comes from ATP.