FINAL EXAM: review packet #2 Flashcards
(23 cards)
three main phases of matter and how they move
SOLID=vibrate, particles closely packed together
LIQUID=particles slide past eachother, always touching though
GAS=move independently
why is HCI and stuff like that not on the periodic table
because its a compound and its the periodic table of ELEMENTS
vinegar and baking soda making carbon dioxide is a
chemical reaction
melting
energy is added
freezing
energy is removed
evaporation
energy is added
condensation
energy is removed
if an object is less dense than another object, it’ll
float
if an object is denser than another object, it’ll
sink
how do producers get energy
they make their energy using the sun
how do consumers get their energy
they get it from eating other consumers/producers
simplest to most complex starting with organelle
organelle, cell, tissue, organ, organ system, organism
what substance absorbs sunlight during photosynthesis in plants
chlorophyll
what to plant cells have that animal cells dont
cell wall and chloroplasts
why do organism need food
so they can have energy to function in life
what is photosynthesis
when a producer uses chloroplasts to create energy from the sun and carbon dioxide
four characteristics of living things
- responds to stimuli
- made up of cell(s)
- composed of chemicals to provide energy/functions
- can grow/develop/reproduce
unicellular organism
made of one cell ex. amoeba
multicellular organism
made of 1+ cells ex. humans
Carbohydrates
provide quick energy (bread, pasta, rice)
Proten
build and repair cells/muscles (meat like chicken and steak)
Lipids aka fats
also builds and repairs cells, protects organs, STORED ENERGY (oils, butter)
Nucleic acid
basic instructions for how cells funtion (DNA)
