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Sections 2 ch 1
Question | Answer |
---|---|
organelle | tiny cell structures- carry out specific functions within the cell, |
cell wall | is rigid layer of nonlivingmaterial that surrounds the cells of plants and some other organisms |
cell membrane | controls what substances enter and leave the cell |
nucleus | directs all of cells activities |
nuclear membrane | protects the nucleus; materials pass in and out of the nucleus though small openings, or pores, in this |
chromatin | contain genetic material, the instructions that direct the functions of the cells- thin strands in front of the nucleus |
nucleolus | where ribosomes are made; small object floating by the nucleus |
cytoplasm | region between the cell membrane and the nucleus; clear and gell-like |
the organelles function to produce energy, build and transport needed materials, and store and recycle wastes. true or false | many cell organelles are found in cytoplasm |
mitochondria | powerhouses"- energy of the cell |
ednoplasmic reticulum | maze of passageways that carry proteins and other materials to other parts of the cells. |
ribosomes | produce protiens |
golgi bodies | cell's mailroom |
chloroplast | capture energy from sunlight and use it to porduce food for the cell |
vacuole | storage area for cell |
lysosomes | small round structures that contain chemicals that break down large food particles into smaller ones |
BACTERIA CELLS HAVE A CELL WALL AND A CELL MEMBRANE, BUT NO NUCLEUS. TRUE OF FALSE? | TRUE |
specialized cells | each cell is quite different from eachother |