Question

prokaryotic cells: made of ____________ cells. do not have a __________. dna floats in the __________. example: __________ eukaryotic cells: contain a __________ that holds dna have membrane - bound __________. examples: __________ memory trick: “pro = __________ nucleus, eu = __________ nucleus” organelle function city cell analogy nucleus ribosomes endoplasmic reticulum mitochondria lysosome vacuole chloroplast cell membrane cell wall cytoplasm plant vs animal cells plant cells have three structures that animal cells do not: __________, __________, and __________ the large central vacuole in plant cells help the cell maintain ____________ what are the three parts of the cell theory?

Explanation:

Prokaryotic cells are single - celled and lack a nucleus, with DNA in the cytoplasm (e.g., bacteria). Eukaryotic cells have a nucleus and membrane - bound organelles (e.g., plant and animal cells). The memory trick is "Pro = no nucleus, Eu = yes nucleus". Organelles like the nucleus is the control center (city hall analogy), ribosomes make proteins (factories), endoplasmic reticulum is for protein and lipid synthesis (transportation network), mitochondria is the power - house (power plant), lysosome breaks down waste (waste disposal), vacuole stores substances (storage facility), chloroplast is for photosynthesis (solar panels in plant cells), cell membrane controls entry/exit (border control), cell wall provides support (city wall in plant cells), cytoplasm is the fluid (city streets). Plant cells have cell wall, chloroplasts, and large central vacuole which helps in maintaining turgor pressure. The cell theory states that all living things are made of cells, cells are the basic unit of life, and new cells come from pre - existing cells.

Answer:

Prokaryotic Cells:
Made of single cells.
Do not have a nucleus.
DNA floats in the cytoplasm.
Example: Bacteria

Eukaryotic Cells:
Contain a nucleus that holds DNA.
Have membrane - bound organelles.
Examples: Plant cells, Animal cells

Memory trick: "Pro = no nucleus, Eu = yes nucleus"

Organelle | Function | City Cell Analogy
--- | --- | ---
Nucleus | Control center of the cell | City hall
Ribosomes | Protein synthesis | Factories
Endoplasmic Reticulum | Protein and lipid synthesis | Transportation network
Mitochondria | Produce energy (ATP) | Power plant
Lysosome | Break down waste | Waste disposal
Vacuole | Store substances | Storage facility
Chloroplast | Photosynthesis (in plant cells) | Solar panels
Cell Membrane | Regulate what enters and exits the cell | Border control
Cell Wall | Provide support and protection (in plant cells) | City wall
Cytoplasm | Holds organelles and is the site of many chemical reactions | City streets

Plant vs Animal Cells:
Plant cells have three structures that animal cells do not: cell wall, chloroplasts, large central vacuole
The large central vacuole in plant cells help the cell maintain turgor pressure.
What are the three parts of the cell theory?

1. All living organisms are composed of one or more cells.
2. The cell is the basic unit of life.
3. All cells arise from pre - existing cells.