Science chapter 1

playground's version from 2016-08-29 14:01

Section 1

Question Answer
Cellbasic unit of structure
microscopic too small can be seen with microscope
OrganismLiving thing that maintains vital life processes
Cell membrane thin cover the cells
Nucleus direct cells' activities
Cytoplasmbetween cell membrane and nucleus jellylike material
Mitochondria the ''Powerhouses'' of a cells
Vacuolesstore nutrients, water, or waste material in plant cells
vesicles similar function in an animal cells
Cell walls helps support a plant cells
Chloroplastsin cytoplasm of many plants
Bacteria single-celled organism
Protist Is a simple organism
Algae part of a group, of protist

Section 2

Question Answer
Tissue Cells that work together
Epithelial tissue covered and lined
Muscle tissue most of your body mass
Connective tissue skeletons are made of
Organs Tissue that work together
Nervous tissue tell muscle when to contract
Plasmaliquid part of body
Organ system Organs that work together
Digestive system breaks food down
Villihave many blood vessel
Peristalsiswavelike contraction of muscles

Section 3

Question Answer
Circulatory system made up of heart
arteriesblood leaves the heart through blood vessels
capillariesarteries leads to small blood vessels
Veins capillaries lead to larger blood vessels
Skeletal system which includes mainly bones
Muscular system muscles and tendons that move bones
Cartilage spongy connective tissue
ligaments hold on bones
smooth musclesmost makes up with walls of the body's organs
Involuntary Types of muscles
Nervous systemenables to sense your environment
Central nervous system made up of brain and spinal cord
peripheral nervous system is made up of sensory organ
synapse connection between nerve
Sensory receptors special nerve of sensory organs
reflexes automatic responses to certain stimuli
Excretory system Ammonia is removed from the body
Kidneys One pair of organs
bladders ureters to a muscular organ
uretersurine flows through tubes

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