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Ch 2 Vocab - 6th gr

Vocabulary for Chap 2 Life Science - 6th Grade

TermDefinition
microscope tool that makes things look larger than they really are
lens piece of curved glass or other clear material that causes light rays to come together or spread apart as they pass through
cell basic unit of structure and function in living things
cell membrane thin structure that surrounds a cell
cytoplasm gel-like substance inside the cell where most of the cell's activities take place
nucleus (nuclei) control center of a cell
nuclear membrane thin structure that surrounds and protects the nucleus
organelle small structure in cytoplasm that does a special job
mitochondrion (mitochondria) structure that releases energy for a cell
endoplasmic reticulum small network of tubes inside a cell that substance move along
ribosome small, round structure that makes proteins
Golgi body organelle that packages and sends materials to other places in the cell
vacuole space in the cytoplasm stores the different substances a cell needs to survive
lysosome small, round structure that breaks down nutrient molecules and old cell parts
cell wall thick outer layer that surrounds the cell membranes of plants and some simple organisms
cellulose carbohydrates, made up of man sugar molecules, that forms most of the cell wall of a plant cell
chloroplast organelle in a plant cell that contains chlorophyll
chlorophyll green material in chloroplasts that is needed by plants to make food
unicellular containing only one cell
multicellular containing more than one cell
pseudopod fingerlike extension of the sytoplasm
guard cell cell that controls the size of a stoma
stoma (stomata) tiny opening in the upper or lower surface of a leaf
diffusion movement of material from an area where molecule are crowded to an area where they are less crowded
passive transport movement of materials through a membrane without the use of energy
osmosis movement of water through a membrane
active transport movement of materials through a membrane using energy
energy the ability to do work or cause change
photosynthesis food-making process in plants and other organism that uses sunlight
glucose a simple type of sugar
fermentation process by which a cell releases energy from food without using oxygen
chromosome cell part that determines what traits a living thing will have
chromatin threadlike material that makes up a chromosome
mitosis division of the nucleus
daughter cell new cell produced by cell division
Created by: turnereagles