BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Explanation: Energy is produced in the Mitochondria hence option c is not related to Endoplasmic reticulum.

Detailed explanation-2: -RER occurs in both animal and plant cells. The RER membrane is continuous with the nuclear envelope, which surrounds the cell nucleus. The RER is also located near the Golgi apparatus, which transports, modifies, and packages proteins for delivery to targeted destinations.

Detailed explanation-3: -Rough ER lies immediately adjacent to the cell nucleus, and its membrane is continuous with the outer membrane of the nuclear envelope. The ribosomes on rough ER specialize in the synthesis of proteins that possess a signal sequence that directs them specifically to the ER for processing.

Detailed explanation-4: -Yes, the ER (endoplasmic reticulum) and the nucleus are attached through their outer membranes. Specifically, it is the rough ER that is attached to the nucleus. The ER is a large membrane-bound organelle that is spread throughout the cytoplasm of eukaryotic cells.