 How does a plant’s lifestyle differ from an animals?  What organelles are different?

 Protects and supports  Found only in plants, algae, fungi, and bacteria  Lies outside cell membrane; provides rigidity  Composed of cellulose (polysaccaride)

 Plastids are organelles that are surrounded by a double membrane and contain their own DNA  Chromoplasts: contain colorful pigments, red (xanthophyll), orange (carotene), and yellow (anthocyanin) that color fruits, flowers, and fall leaves.  Leucoplasts- colorless; stores food; found in roots and stems  Chloroplasts- contain green pigment chlorophyll which is site of photosynthesis

 Found only in plants and some algae  Have their own DNA (chloroplast only)  Have outer membrane with complex inner membrance called Granum (stacks of membranes) and protein material called the Stroma that fills rest of organelle

 Large, fluid filled organelle that stores not only water, but enzymes, metabolic wastes, and other materials.  Make up 90% of plants volume  When water is plentiful, this fills up and cells expand making plant stand upright

 Animal Cells:  Have centrioles and small vacuole sometimes  Plant cells:  Have cell wall, plastids, and large central vacoule  Both plant and animal cells:  Can be multicellular or unicellular  Eukaryotic

 One person says the vacuoles keep a plant from wilting. Another says cell walls do it. Who is correct?  If you discovered a new cell what characteristics would you look for to determine what type it is?