Biology Exam 1 Flashcards
(29 cards)
What is Biology
Study of Life
What is Life?
No one definiton , able to perform functions
Scientific Method
Observation →Hypothesis→Prediction→Experiment→Conclusion
Hypothesis
Explorable Thought
Theory
Explanation supported by observation
Law
Statement summarizing relationship between 2 things
What is the “big four”?
Oxygen, Carbon, Nitrogen, Hydrogen - Make up 96% of Body
What is a Covalent Bond?
Sharing of Electrons between atom
What is an Ionic Bond?
Attraction between two oppositely charges atoms, positive gives electron to negative to stabilize
What is a Hydrogen Bond?
Slightly Positive hydrogen atom attracted to a slightly negative atom
Carbs are polymers of ?
Monosacchrides
What are the Indigestible Carbs?
Cellulose and Chitin
Carbs are?
Sugars and Starch
What are types of Lipids?
Fat, Sterol, Phospholipids
Which Lipid gives long-term energy?
Fat
Forms Cellular Membrane
Phospholipid
Regulates growth and Development
Sterol
Proteins are polymers of ?
Amino Acids
Linear chain structure with peptide bonds
Primary Structure
Helix with hydrogen bond
Secondary Structure
Looks like a blob, folded
Tertiary Structure
Many Blobs
Quaternary Structure
What do proteins do?
Provide structure, hormones, enzymes, building blocks
Nucleic Acids have what polymers?
Nucleotides
