Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
BIO EXAM #1
Practice Test
| Question | Answer |
|---|---|
| The diffusion of water molecules across a selectively permeable membrane is? | Osmosis |
| Maintaining a normal blood sugar or blood pH is? | Homeostasis |
| What kind of bond holds the atoms of a single water molecule together? | Covalent bonds that are polar |
| Which of the following are found in the nucleus of an atom? | Neutrons and protons |
| A carbon can form up to ___ bonds with other atoms. | 4 |
| The most important physical characteristic of lipids with regard to living organisms is that they? | Are hydrophobic |
| Saturated fatty acids are so named because they are saturated with? | Hydrogen |
| A neutral atom must contain? | An equal number of protons and electrons |
| Is a membranous organelle that chemically modifies and ships proteins to other organelles or out of the cell. | Golgi bodies |
| Red blood cells placed into distilled water will? | Swell and rupture as water moves into the cell |
| What structures move proteins from the ER to the Golgi apparatus? | Transport vesicles |
| What describes the water in sugar-water solution? | Solvent |
| What can diffuse directly across plasma membranes, moving right through the phospholipid bilayer? | CO2 and O2 |
| Refers to the inner open space or cavity of a tubular organ, such as of blood vessel or intestine | Lumen |
| High temperatures or changes in pH can permantly disrupt protein structure and function. This is called? | Denaturation |
| Eukaryotic cells differ from prokaryotic cells in that they have a membrane-bound _____ that contains the genetic material. | Nucleus |
| Group of cells that carry out a certain function is? | Tissue |
| A blind experiment is one in which? | Subjects do not know if they are in the experiment or not. |
| The campus occupys? | A community |
| Chemical reactivity and the formation of chemical bonds between atoms is a function of what subatomic particles? | Electrons |
| What is the function of the plasma membrane? | Regulation of the passage of material into and out of the cell |
| Fats are composed of glycerol and ____ which can both be metabolized for the production of ATP. | Fatty acids |
| Which organelle contains digestive enzymes? | Lysosomes |
| The polysaccharide that is a storage form of glucose in the liver and muscle cells in humans is? | Glycogen |
| Proteins that speed up chemical reactions in the body are called? | Enzymes |
| Function of protein synthesis | Ribosome |
| Which of the following is not a disaccharide? | Galactose |
| What are the functions of endoplasmic riticulum? | Lipid and steroid synthesis |
| What is both found in eukaryotic and prokaryotic cells? | Ribosomes |
| How are protons, electrons, and neutrons are arranged into atoms and ions? | Protons and neutrons are inside of the nucleus and electrons are outside of the nucleus |
| What is a ionic bond? | Total transfer of electrons forming ions, attraction between ions with opposite charges |
| What is a hydrogen bond? | Occurs between a hydrogen atom and an oxygen atom |
| What is a covalent bond? | Sharing of electron pairs between atoms |
| What is dehydration synthesis or condensation reaction? | Removal of water. (OH from one monomer and H from another) |
| What is hydrolysis? | Water is used to break bond. Enzymes split molecules into two or more parts. |
| What does DNA stand for? | Deoxyribonucleic acid |
| Definition of denatured. | breaking of many of the weak linkages, or bonds (e.g., hydrogen bonds), within a protein molecule. |
| What are the four levels of structure in proteins. | Primary structure, secondary structure, tertiary structure, and quaternary structure. |
| What is the neutral pH level? (Base) | 7.0 |
| Acidic solutions have what level of pH? | Greater than 7 |
| Basic solutions have what level of pH? | Less than 7 |
| What are the three groups of carbohydrates? | Monosaccharide, disaccharide, and polysaccharides |
| Triglyceride | 3 fatty acids + glycerol |
| Phospholipids | Cell membrane component. 2 fatty acids + glycerol + phosphate |
Created by:
dconti
Popular Biology sets