Which of the following organelle is called controls the cell activities?Question 17Answera.Cytoplasmb.Mitochondriac.Nucleusd.Ribosome

The organelle that controls the cell activities is the nucleus.

Here's a step-by-step explanation:

1. The nucleus is often referred to as the "control center" of the cell. This is because it contains the cell's DNA, which carries the instructions for all the cell's functions.

2. The DNA in the nucleus is used as a template to make RNA, which is then used to produce proteins. Proteins carry out most of the cell's functions, from providing structural support to catalyzing chemical reactions.

3. The cytoplasm is the fluid inside the cell where many of the cell's metabolic reactions occur, but it does not control the cell's activities.

4. The mitochondria are the "powerhouses" of the cell, producing energy through the process of cellular respiration, but they do not control the cell's activities.

5. Ribosomes are the sites of protein synthesis in the cell, but they do not control the cell's activities.

So, the correct answer is c. Nucleus.