Question

which of the following is a function of the nucleus?
stores dna
controls most of the cells processes
contains the information needed to make proteins
all of the above
the main function of the cell wall is to
support and protect the cell.
store dna.
direct the activities of the cell.
help the cell move.
which of the following organic compounds is the main source of energy for living things?
carbohydrates
lipids

Explanation:

First Question (Function of the nucleus)

• The nucleus stores DNA (genetic material).
• It controls most of the cell’s processes as it regulates gene expression and cellular activities.
• DNA in the nucleus contains the information (genes) needed to make proteins (through transcription and translation processes). So all the given options about the nucleus's function are correct.

• The cell wall (in plant, fungal, bacterial cells) provides structural support and protection to the cell, maintaining its shape and defending against external stress.
• Storing DNA is the nucleus’s function, directing cell activities is also the nucleus’s role, and helping cell move is done by structures like cilia/flagella, not the cell wall.

• Carbohydrates are the main source of energy for living things. They are broken down (e.g., glucose metabolism) to release energy quickly.
• Lipids are long - term energy storage molecules and not the main immediate energy source.

Answer:

D. all of the above (assuming the options are labeled A - D as: A. stores DNA, B. controls most of the cell's processes, C. contains the information needed to make proteins, D. all of the above)

Second Question (Main function of the cell wall)