Aim: How do plant & animal cell organelles maintain homeostasis?

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Presentation transcript:

Aim: How do plant & animal cell organelles maintain homeostasis? DO NOW: Read the “Cell Theory Rap” handout & on loose-leaf, explain why we looked at this rap, choose 2 organelles & write down their functions.

Organelles “mini-workers” inside of cells that have specific jobs Lie in the cytoplasm of both animal & plant cells (eukaryotes)

Nucleus Brain of the cell Contains DNA or genetic instructions (Nucleic Acid) Has a membrane with pores

Nuclear Membrane Membrane of the nucleus Also called nuclear envelope

Nucleolus Inside nucleus Makes ribosomes

Ribosomes Make proteins Found freely in cytoplasm or attached to endoplasmic reticulum

Mitochondria Site of cellular respiration (chemical reaction) ATP Energy producing organelle Powerhouse of the cell

Vacuoles Storage sacs for food or water or excess waste, that will eventually be eliminated

Endoplasmic Reticulum Cellular highway Allows for more efficient transport inside of cells 2 Types: Smooth & Rough Rough: contains ribosomes, which make proteins Smooth: no ribosomes

Golgi Bodies / Apparati Packaging organelle for proteins (sorts, modifies & packs proteins)

Lysosomes Located in both animal and plant cells Contain digestive enzymes for breakdown of wastes (Ex. damaged cells or old cell parts)

Centrioles Only in animal cells Look like cylinders In pairs, near the nucleus Involved in cell division

Chloroplast Only in Plant Cells Site of Photosynthesis (chemical reaction) Food (Glucose) Producer Contains chlorophyll pigment (allows for absorption of sunlight)

Cell Membrane Barrier between inside & outside of cells Regulates what enters & exits cells

Cell Wall Made of cellulose (tough carbohydrate) Lies outside the cell membrane in plant cells and bacteria, fungal organisms and some protists Offers Support & Protection

Cytoplasm Similar function to that of the human body’s circulatory system Site of most chemical reactions in a cell Holds organelles in place Mostly made of water “gel-like” fluid that surrounds the nucleus

Brain-Pop Video https://www.brainpop.com/science/cellularlifeandgenetics/cellstructures/

Activity

Homework Castle Learning Questions on Organelles

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