Ch. 7 continued..
Terms
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- chloroplasts
- organelles in PLANTS ONLY that transform light energy into useable energy that is stored in food molecules
- chlorophyll
- the substance in chloroplasts that traps light energy and gives plants their green color
- plasma membrane
- boundary between the cell and its external enviornment/made mostly of lipids/flexible allows passage of materials in and out of the cell
- cell wall
- boundary that is outside the plant cell that gives the cell structure.
- cytoskeleton
- network of thin, fibrous elements in the cytoplasm that acts as a scaffold to provide support fot eh organelles, helps maintain cell shape and provides oganelles with help in moving from place 2 place in the cell
- nucleus
- "brain" of the cell, surrounded by a nuclear envelope of 2 doulbe membranes containing dna in th form of long strands called chromain
- nucleolus
- region within the nucleus that produces ribosomes that assemble enzymes and other proteins according to dnas instructions
- cilia
- short numerous hair-like projections that form the plasma membrane that bent like a wave to move cells
- flagella
- longer projections limited in # (2 or 3) that move in a whip like motion
- cell inclusion
- clump of material within the cell that isnt a functional part (organelle) or the cell (glycogen, lipids ect.)