HSP Science Grade 5 Chapter 1 Vocabulary

chayanat1's version from 2016-08-23 02:07


Question Answer
microscopicSmall until can be seen only with a microscope
cellThe basic unit of structure and function in living things
organismEvery living thing
cell membraneStructure that protects, hold the contents of the cell, and control things that goes in and out of the cell
nucleusThe cells "boss"
chromosomesInside a nucleus;
cytoplasmIt contains chemicals that help keep a cell healthy
mitochondriaThe "powerhouse", they release energy from vacuole
vacuoleWhere they store nutrients, water or waste of the cell
organelleThe parts in a cell
cell wallA part that helps support a plant cell that lies on the cell membrane
chloroplastAn organelle that make food for the cell
protistA simple organism, usually a single cell, with nucleus and organelles
tissueCells that work together to perform a certain function
organSeveral kinds of tissue working together for the same function
organ systemOrgans that work together to do a job for the body
digestive systemThe system that breaks food down into chemical nutrients that body cells need for energy, growth, and repair; contains mouth, esophagus, stomach, small intestine, villi, large intestine
peristalsisThe wave-like contraction of muscles in the organs of the digestive system
circulatory system :The system that transport oxygen, nutrients and wastes through the body; contains heart, blood vessel, blood
respiratory system :The system that exchange oxygen and carbon dioxide between your body and the environment; contains
skeletal system :The system that helps hold you up and protect you and produce blood; contains bones, cartilage, and ligament
muscular system :The system that helps you move; contains muscles and tendons (that move bones)
nervous system :The system that let us sense the environment and react to it; contains brain (central nervous system) and spinal cord (central nervous system) and sensory organs (peripheral nervous system)
excretory system :The system that remove wastes such as ammonia; contains liver, urea (the pee), kidneys, ureters, and bladder