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
|
Properties of water that support life on planet Earth (4) |
1) water molecules stick together(transparent in plants). 2) water has a strong resistance to change in temperature. (absorbs heat) 3) Frozen water floats(freezes bottom up). 4) Water is a common solvent for life (most substances dissolves in it).
|
|
|
What observations led to Darwin's natural selection? |
1) individual variation 2) Overproduction of offspring/ competition for common resources. |
|
|
Products and reactants. Solute? Solvent? Aqueous solution? Most likely to dissolve in water. |
Reactants on left. Products on right. Solute is dissolved substance. Solvent is the dissolving agent. Aqueous- When water is the solvent. Hydrophillic is most likely to dissolve in water.
|
|
|
Mass number? |
The sum of protons and neutrons in a nucleus. |
|
|
Molecules |
Atoms held together by covalent bonds. |
|
|
Eukaryotic? Prokaryotic? |
-Has a nucleus. More complex and larger. Fungi, animals plants, and protists (single) form from it. -Simpler and smaller, no nucleus, bacteria |
|
|
Genome Chromosome Genes nucleotides |
Genome- Largest (dna) Chromosomes 46 and 23 pairs Genes- inheritance Nucleotides- smallest building block
|
|
|
Consumer? Producer? |
Eat foods The sun. makes the food. |
|
|
Most energy comes from? Organisms that harness from it? |
Sun. Plants. |
|
|
Atomic # |
The number of protons in the atom. |
|
|
4 biological molecules |
Carbonhydrates, Proteins, Lipids, and Nuclei acids. |
|
|
4 most common elements in living things? |
Carbon, Hydrogen, Nitrogen, and Oxygen. |
|
|
Elements? |
Substances that cant be broken down into other substances. |
|
|
3 domains, 3 kingdoms, and protist |
Domain Bacteria, Domain Arachea, Domain Eurkayotic. Kingdoms- Plants, Fungi, animals. Protists- Single celled (unicellular) |
|
|
DNA and RNA? |
DNA double stranded RNA single stranded Different sugars RNA- Uracil DNA- Thymine |
|
|
Atoms
|
Smallest unit of matter. |
|
|
recognize a properly- stated hypothesis? Hypothesis? |
-Proposed statement or explanation ex. my cars battery is dead. -Tentative answer to a question. |
|
|
Hydrophillic? Hydrophobic? |
-Loving of water. -Unable to mix with water. |
|
|
"Father of Taxonomy"? |
Carlos Linnaeus |
|
|
Cohesion |
Water molecules stick together.
|
|
|
Denaturation? |
Unravels and loses shape. |
|
|
Biological organizations ... most to less |
Biosphere Ecosystem Communities Populations |
|
|
Artifical Selection |
Humans do the selecting. |
|
|
3 classes of Macromolecules? |
Carbonhydrates, Nuclei acids, Proteins. |
|
|
Polarity |
opposites.. positive on one negative on other |
|
|
What is is meant by binomial nomenclature? |
Two word naming system |
|
|
8 levels of classification. Largest to least specific? |
Dont kill Phil class or family g stuff Domain (largest), Kingdom, Phylum, class, order, family, genus, species (most general) (Homo sapiens our name) |
|
|
Compound |
two or more substances in a fixed ratio. |
|
|
Organelle |
membrane enclosed structure w/ specific function (Eurkaryotic) |
|
|
Ion |
Electrically charged atom. |
|
|
Isotope |
Same # of protons and electrons but different # neutrons; differ in mass. |
|
|
Saturated and unsaturated fats? |
Saturated- bad solid at room temp. max # of hydrogens. Unsaturated- good liquid at room temp. double bond. |
|
|
Water molecule structure? |
Hydrogen bonds mixed with polarity of water. Unequal share of electrons. |
|
|
Metabolism? |
The total of all chemical reactions in a organism |
|
|
Homeostasis |
Maintain a regular body function. |
|
|
Primary characteristics of biology molecules? Function of enzymes. |
structure and shape. Enzymes- denaturation |
|
|
Evolution? |
different changes over time . |
|
|
3 types of chemical bonds |
- hydrogen bond (weakest ) hydrogen mixed with aqueous solution. - covalent bond (share) - Ionic bonds (strongest) |
|
|
pH scale OH- and H+ and logarithmic scale |
pH of 7 is neutral H+ is Hydrogen acidic OH- is hydroxide basic logarithmic 10x each |
|
|
unequal reproduction success? |
Also called natural selection organism are better adapted to their environment and is the mechanism of evolution. |
|
|
Dehydration synthesis? Hydrolysis? |
-Products on right which is water - reactants on left its hydrolysis |
|
|
Characteristics of living things (6) |
- Order - Regulation - Growth and developmnent - Energy Utilization - Response to environment - Reproduction |
