Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
42 Cards in this Set
- Front
- Back
|
what is biology?
|
the study of life
|
|
|
What are the branches of biology?
|
botany, genetics, ecology, biochemistry, cell biology, evolutionary theory, microbiology, zoology, physiology
|
|
|
what is scientific method?
|
series of steps used to answer specific questions about natural phenomenon
|
|
|
List 6 steps of scientific method
|
observation, questions, hypothesis, controlled experiment, data, and conclusion
|
|
|
how are hypothesis tested?
|
controlled experiments
|
|
|
what is the difference between independent and dependent variables?
|
Dependent- variable being measured
Independent- variable being changed |
|
|
What is the difference between the control group and the experimental group?
|
the experimental group is exposed to the experiment and the control group is separated from the independent variable
|
|
|
what do scientist use to support their ideas?
|
evidence
|
|
|
what is the function of a microscope?
|
to view microscopic organisms
|
|
|
What was discovered with the help of microscopes?
|
red blood cells and spermatoza
|
|
|
list 7 characteristics of life
|
composed of cells, different levels of organizations, use energy, grow, reproduce, adapt, respond to environment
|
|
|
what element is in all living things
|
cells
|
|
|
what is an atom
|
smallest particle of matter
|
|
|
what is the difference between an element and a compound?
|
element- contains one or more atoms of the same element
compound- contains one or more of different elements |
|
|
what is all matter composed of
|
atoms
|
|
|
carbs are composed of what
|
sugar
|
|
|
lipids are composed of what
|
fatty acids/ glycerol
|
|
|
proteins are composed of
|
amino acids
|
|
|
nucleic acids are composed of
|
nucleotides
|
|
|
the two types of nucleic acids are
|
DNA and RNA
|
|
|
main source of genetic info in any living thing is
|
DNA
|
|
|
difference between eukaryote and prokaryote cells are
|
eukaryotic have a nucleus
|
|
|
what is the cell theory?
|
cells form the fundamental structural and functional units of all living organisms
|
|
|
what structures are in a plant cell but not an animal
|
cell wall
central vacuole chloroplasts |
|
|
who was the first to discover and coin the term cell
|
Robert Hooke
|
|
|
why is the cell membrane important
|
controls what goes in and out of the cell
|
|
|
what is an organelle
|
any number of organized or specialized structures within a living cell
|
|
|
difference between osmosis and diffusion
|
osmosis- diffusion of water
diffusion- movement of liquids from high to low concentration |
|
|
difference between active and passive transport
|
active- requires energy
passive- requires no energy |
|
|
what does homeostasis have to do with cell membrane
|
refers to maintaining a stable internal environment
|
|
|
what is photosynthesis
|
process by which green plants use sunlight to create food from carbon dioxide and water
|
|
|
what is ATP
|
changes energy to food
|
|
|
difference between aerobic and anaerobic respiration?
|
aerobic- molecules broken down in presence of oxygen
anaerobic- molecules in absence of oxygen |
|
|
what is ecology
|
study of planet life
|
|
|
what substances are needed for cellular respiration
|
carbon skeletons and ATP
|
|
|
define biotic and abiotic
|
biotic- living factor
abiotic- non living factor |
|
|
scientific name for primary consumer
|
herbivore
|
|
|
list the levels of organization in the biosphere
|
biosphere
biome ecosystems community population tissue cells organelles molecules |
|
|
what are the 4 elements needed for life
|
hydrogen, nitrogen, carbon, oxygen
|
|
|
cell wall
|
protects the cell
|
|
|
central vacuole
|
sucks up all the waste
|
|
|
chloroplasts
|
makes plants green
|
