Question

1. the grid - like lattice of proteins that gives the cell shape and support is the ______.

options:
cytosol
cytoskeleton
cytoplasm
endoplasmic reticulum

Explanation:

• Cytosol: It is the liquid part of the cytoplasm, mainly composed of water, ions, and small molecules. It does not have a lattice - like protein structure for cell shape and support.
• Cytoskeleton: Composed of a network of protein filaments (such as microtubules, microfilaments, and intermediate filaments). It forms a grid - like lattice that gives the cell shape, support, and is also involved in cell movement, intracellular transport, etc.
• Cytoplasm: Refers to the part of the cell between the cell membrane and the nucleus (in eukaryotes). It includes cytosol and organelles. It is a general term for the internal environment of the cell and does not specifically refer to the protein lattice for shape and support.
• Endoplasmic reticulum: An organelle involved in protein and lipid synthesis and transport. It does not have the function of providing cell shape and support through a protein lattice.

Answer:

cytoskeleton