Biology in the 21st Century
Biology is the study of_________.
Life
The smallest and most basic unit of life
this organelle is found at the center of the cell and contains genetic information
nucleus
What kind of transport requires the cell to expend no energy?
passive transport
What are the smaller pieces that make up DNA
nucleotides
What is my dogs name? (Double points for all 3 parts)
Riker Bones Moses
the four main types of carbon-based molecules in organisms are
carbohydrates, lipids, proteins and nucleic acids
the three parts to cell theory are
all living things are made up of cells
cells are the most basic unit of life
all cells come from pre-existing cells
this type of transport requires water to diffuse from an area of high concentration to an area of low concentration
osmosis
what is the central dogma of biology?
DNA-> RNA-> protein
During an experiment, factors that can be changed are known as __________.
independent variables
this bond is what is found within a water molecule
covalent bond
a vacuole primarily stores this
water (waste and cell sap as well)
If a cell is in a solution of 90% water and the cell has 80% water, what will happen to the cell over time?
the cell will expand and possibly burst (lyse)
What is the final product of translation?
polypeptide chains (which become proteins)
Never pour water into _______ but pour it slowly into water.
Acid
This attraction causes water and other substances to stick to each other.
adhesion
What takes place in the mitochondria
cellular respiration
this type of diffusion requires "help" from proteins to move materials into and out of the cell
facilitated diffusion
What are codons?
3 mRNA nucleotides
When do you use a line graph?
to show change over time
Explain the difference between endothermic and exothermic reactions
Endothermic: energy is reabsorbed
Exothermic: energy is released
how are photosynthesis and cellular respiration related?
the products of photosynthesis are the reactants of cellular respiration (and visa versa)
what type of transport would be needed for large molecules to exit the cell.
exocytosis (active transport)
what are the DNA and RNA base pairing rules?
DNA: A-T, G-C
RNA: A-U, G-C