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Bio 2nd unit (cells)
Question | Answer |
---|---|
What is Homeostasis? | I'ts maintaining a stable internal environment even though external conditions change |
What is the cell theory | -All living things are composed of cells - Cells are the basic unit of Structure and function - All cells come from preexisting cells |
What are the to types of cells | Prokaryotic and Eukaryotas |
What are Prokaryotic cells | Simple cells that have no membrane bound organelles |
What are examples of Prokaryotic cells | Bacteria |
What are Eukaryota cells | Cells that have membrane bound organelles and nucleus |
What are some examples of Eukaryota cells? | Multi-cellular organisms, unicellular protists, plant cells, animal cells |
What are some some characteristics of a Cell wall | - Made of cellulose - Used to help protect the cell wall |
What are some some characteristics of Chlorophyll | -Green pigment -Absorbs light |
What are some some characteristics of Chloroplasts | -Contains chlorophyll -Found in plants and algae only -Food production in plants -Photosynthesis- makes glucose |
What are some some characteristics of Cytoplasm | Gel-like substance on the inside of the cell |
Endoplasmic reticulum | -Internal transport system of cell -Series of canals, flattened stacks -Smooth or rough- can have ribosomes attached to it |
Golgi body (apparatus) | -Chemicals collected from ER in flattened sacs -Stores, packages and modifies proteins and moves them through cytoplasm |
Ribosome | -Makes proteins -Tiny knob like structures -Can be bound to ER (rough ER) or free in cytoplasm |
Lysosomes | -Formed in Golgi bodies -Contains strong enzymes to digest large particles in the cell |
Mitochondria | -Release energy from cell -The “powerhouse” -Cell Respiration -Double membrane, inner membrane folded |
Nucleus | -large most prominent structure in cell -Controls cell’s activities -Transmits hereditary information |
Nuclear membrane | -Separates the nucleus from the cytoplasm -Contains pores allows substances to pass in and out of nucleus |
Nucleolus | -Found in nucleus -Produces ribosomes |
Plasma Membrane or Cell membrane | -Outer boundary of animal cell -Made of double layer of lipids and proteins -Controls what enters and leaves the cell |
Vacuole | -Very large in plants -Bubble like structures -“warehouse” or “storeroom” of the cell -For water, liquids, food or waste |
What characteristic are in Eukaryotic that aren't in Prokaryotic | -Membrane bound organelles -Nucleus - |
Which is bigger. Eukaryotic or Prokaryotic | Eukaryotic |