Question

what is the primary function of the cell membrane in a eukaryotic cell? a synthesizing proteins. b regulating the passage of substances in and out of the cell. c storing the cells genetic material. d producing energy for the cell. what is the function of the golgi apparatus in relation to proteins and lipids? a modifying, sorting, and packaging them for transport. b storing them until needed. c breaking them down into simpler molecules. d synthesizing them from scratch. what role do lysosomes play within the cell? a they synthesize proteins. b they store nutrients and water. c they break down cellular waste and debris. d they produce atp for energy. which structure acts as a semi - permeable barrier, protecting the cell and regulating what enters and exits? a nucleus b cell membrane c cytoskeleton d cytoplasm

Explanation:

1. The cell - membrane is a semi - permeable structure that controls the movement of substances in and out of the cell. Protein synthesis occurs in ribosomes, genetic material is stored in the nucleus, and energy production is mainly in mitochondria.
2. The Golgi apparatus modifies, sorts, and packages proteins and lipids for transport within or outside the cell. It doesn't store them for long - term, break them down, or synthesize them from scratch.
3. Lysosomes contain enzymes that break down cellular waste and debris. Protein synthesis is not their function, nutrient and water storage is done by vacuoles, and ATP production is mainly in mitochondria.
4. The cell membrane acts as a semi - permeable barrier, protecting the cell and regulating the passage of substances. The nucleus contains genetic material, the cytoskeleton provides structural support, and the cytoplasm is the fluid inside the cell.

Answer:

1. b. Regulating the passage of substances in and out of the cell
2. a. Modifying, sorting, and packaging them for transport
3. c. They break down cellular waste and debris.
4. b. Cell membrane