Question

1. which organelle reads instructions from the dna to begin building proteins?

ribosome
lysosome
vacuole
cell membrane

Explanation:

To solve this, we analyze each option:

• Ribosome: Ribosomes are the site of protein synthesis. They receive mRNA (which carries instructions from DNA) and use it to assemble amino acids into proteins.
• Lysosome: Lysosomes digest waste or foreign materials, not involved in protein synthesis from DNA instructions.
• Vacuole: Vacuoles store substances (like water, nutrients) and have no role in protein synthesis from DNA.
• Cell membrane: The cell membrane regulates transport in/out of the cell, not protein synthesis.

Answer:

A. Ribosome