Question

13 multiple choice 1 point
to increase the surface area of some cells, the plasma membrane possesses
microvilli.
transport proteins.
flagella.
phospholipids.
receptors.
14 multiple choice 1 point
in the cell, proteins that are synthesized for immediate use by the cell are normally produced
in the nucleus.
in the plasma membrane.
on smooth endoplasmic reticulum.
in the golgi apparatus.
on free - floating ribosomes.

Explanation:

For question 13: Microvilli are small, finger-like projections of the plasma membrane that specifically function to increase the surface area of cells (e.g., intestinal epithelial cells for absorption). Transport proteins move substances across the membrane, flagella enable cell movement, phospholipids form the membrane structure, and receptors detect signals.
For question 14: Free-floating (cytosolic) ribosomes synthesize proteins that are used directly within the cell's cytoplasm. The nucleus stores DNA, the plasma membrane is a cell boundary, smooth ER makes lipids, and the Golgi apparatus modifies and packages proteins for secretion or membrane use.

Answer:

1. microvilli.
2. on free-floating ribosomes.