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43 terms

Biology Chapter 7: Structure & Function of the Cell

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Hooke
First described cell
Golgi
discovered Golgi cell
Chromosome
Made of DNA, in the nucleus
Lignin
Hardens cell walls
Cell Membrane
Semipermeable, surrounds cell
Leucoplast
Stores starch in plants
Nucleolus
Made of DNA and RNA, in nucleus
Cell
Basic unit of life
Ribosomes
Sight of protein synthesis
Middle
Position of lamella
Virchow,
One of the discoverers of cell theory
Mitochondria
Releases energy for the cell
Lysosomes
Loaded with destructive enzymes
Pore
hole in nuclear envelope
Brown
Discovered nucleus
Unicellular
made of single cell
Nucleus
Control center of cell
Guanine
crystals in the skin of fish
Ostrich
Produces largest egg
Organelles
specialized structures within cells to perform certain tasks
Cell Membrane
thin flexible barrior that surrounds and supports the cells
Eukaryotes
possesses a nucleus and membrane bound organelles (plant, animal, fungi, protists)
Prokaryotes
lacks a nucleus and membrane bound organelles (bacteria)
Nucleus
Control Center
Nuclear Envelope
Double membrane structure surrounding the nucleus
Nuclear Pores
Openings allowing movement of material
Chromatin
uncoiled forms of chromosomes
Nucleolus
Assembles ribosomes
Chloroplasts
green, photosynthesis
Chromoplasts
yellow, orange, or red...common in fruit and flowers
Golgi Apparatus
Packager. Modify, sort, package proteins for storage or secretion
Lysosomes
Janitors or clean up crew. Destruction of waste, dysfunctional organelles or invaders
Cytoskeleton
The Frame Work. Helps the cell membrane maintain its shape and also involved with movement
Microfilaments
Movement of cell (muscles)
Microtubles
Process of cell division (centrioles)
Cilia
short and numerous; moves the organism or materials outside of it
Flagella
long and few; used to propel by a whipping action
Mitochondria
Powerhouse. Location for cellular respiration which transfers stored energy in LARGE molecules to a usable form (ATP)
Ribosomes
Workers and Producers. assemble proteins
Membrane
consists of RNA and protein
Rough E.R.
responsible for producing proteins that are EXPORTED out of the cell; posses ribosomes attached to the surface (hormones)
Endoplasmic Reticulum
Internal Transport System. Moves specific materials throughout the cell; constructs membrane parts
Smooth E.R.
doesn't possess ribosomes, involved in synthesis of membrane lipids and detoxification of drugs