Characteristics of living things
what is an organism?
any living thing
The basic unit of structure and function in living things
Cells
the source of energy for most living things
Sunlight
the process by which a cell releases energy from food molecules
cellular respiration
What system breaks food down into energy for the body?
digestive system
About 2/3 of your body is this
water
Name 5 organelles
lysosome/vacuole/mitochondria/chloroplast/cell wall/cell membrane/nucleus/vacuole/cytoplasm/endoplasmic reticulum/golgi apparatus/ribosomes
what is the equation for photosynthesis?
oxygen, water and sunlight to make sugar and the waste product oxygen
what are the reactants in cellular respiration?
oxygen and glucose
What system receives oxygen and gets rid of carbon dioxide?
respiratory system
the process of keeping conditions inside a body constant
homeostasis
the process of moving nutrients in living things
transport
What molecule absorbs sunlight during photosynthesis?
chlorophyll
what are the products of cellular respiration?
water and ATP with the waste product carbon dioxide
What system allows motion in the body?
muscular system
A reaction to a change
A response
the process of getting rid of waste
excretion/lysosomes/exocytosis
chemical substances that are needed for growth and energy
nutrients
The element found most in humans
Oxygen
the process by which living things produce new organisms like themselves
reproduction
requires an organism to take in material from the environment and organize the material into its own structures.
growth
what is the cell membrane made of? name all the components
phospholipid bilayers/cholesterol/protein channels/receptors
The branch of life science that studies plants
Botany
The branch of science that studies animals
zoology
How do the circulatory system and the skeletal system work together?
the skeletal system makes blood cells while the circulatory system transports them where the need to go