PDF Notes: מבנה התא החי ואירגונו 2

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    What is the function of ribosomes?

    They synthesize proteins.

    How do prokaryotic cells differ from eukaryotic cells?

    Prokaryotes lack a nucleus and are simpler.

    What is the role of the nucleus in a cell?

    It houses most of the cell's DNA.

    What defines the rough endoplasmic reticulum?

    It is studded with ribosomes for protein synthesis.

    What is the primary function of mitochondria?

    They produce ATP through energy metabolism.

    What is the significance of the plasma membrane?

    It regulates material exchange with the environment.

    What distinguishes lysosomes from vacuoles?

    Lysosomes digest large molecules; vacuoles store substances.

    What is the role of the Golgi apparatus?

    It processes and packages proteins for transport.

    What happens during cell fractionation?

    Organelles are separated based on size and density.

    What is the primary component of the cytoskeleton?

    It consists of protein filaments that provide structure.

    What is the function of chloroplasts?

    They conduct photosynthesis in plant cells.

    How does water contribute to biological systems?

    It acts as a solvent and participates in biochemical reactions.

    What are macromolecules?

    Large molecules essential for cellular functions.

    What is the difference between condensation and hydrolysis?

    Condensation links monomers; hydrolysis breaks them apart.

    What is the role of peroxisomes?

    They break down toxic peroxides.

    What is the significance of the cell wall in plants?

    It provides structural support and protection.

    What are the four main types of macromolecules?

    Proteins, nucleic acids, carbohydrates, and lipids.

    What is the primary structure of proteins?

    It is the sequence of amino acids in a polypeptide chain.

    What is the function of the nucleolus?

    It assembles ribosomal RNA and proteins.

    What happens if the plasma membrane is compromised?

    It can lead to loss of cellular integrity and function.

    What is the role of fatty acids in lipids?

    They are key components of triglycerides and phospholipids.