Unit 1: intro to bio
What does biology mean?
The study of life
Blood has a pH of 7. It would be classified as______.
neutral
What is the smallest unit of life?
Cells
Most of a cell’s ATP energy is made in the _________.
Also called the powerhouse of the cell.
mitochondria
The scientist often referred to as the father of genetics is
gregor mendel
Which biological organization involves the interaction of several abiotic and biotic factors in the same area?
Ecosystem
What are the 3 parts of an atom and their charges?
electron -
proton +
neutron 0
Diffusion is the net movement of molecules from ____.
high to low
The pigment that allows plants to take sunlight in is called...(makes leaves look green)
chlorophyll
The genotype of an organism is ______.
genetic makeup
What is the order of hierarchy from a cell to an organism?
cell, tissue, organ, organ system, organism
What acts as a catalyst to speed up a reaction
Enzymes
What are 2 of the 3 parts of the cell theory?
all organisms are made up of one or more cells
the cell is the basic unit of all living things
all cells come from existing cells
What is ATP?
Energy storing molecule of the cell
Unlike mitosis, meiosis results in the formation of
4 unique cells with half the number of chromosomes as the original cell
What is the variable that the scientist chooses to change when experimenting? (Something I change)
The independent variable
What are the three parts of a nucleotide?
Nitrogen base, ribose, and phosphate
In a hypotonic solution, the cell will____________.
get bigger
Why is the fermentation important?
it provides energy even when there is no oxygen
What is an inherited characteristic that increases an organism’s chance for survival and reproduction?
Adaptation
What are the steps of the scientific method?
Making observations
Ask a question
Form a hypothesis
Perform an experiment
Collect Data
Draw Conclusions
What are proteins made out of?
amino acids
Why is Mitosis necessary for a multicellular organism to live?
Grow bigger and repairing old or damaged cells
sugar and oxygen
What is evolution?
the slow change in a species over time