Term
| What 2 items do yeast eat? |
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Definition
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Term
| What are the 3 specific variables used in science? |
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Definition
Independent:
What you change
Dependent:
What you are measuring
Control:
What you compare results to |
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Term
| What is the final step in the scientific method? |
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Definition
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Term
| What are the two types of hypothesis? |
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Definition
Null (No difference)
Alternative (If, then) |
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Term
| Give the 2 symbols used to denote the 2 types of hypothesis. |
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Definition
-Ho(null)
-Ha/Hi(alternative) |
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Term
| What is the one thing experiments must be? |
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Definition
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Term
| On a normal curve where is the mean? What is its symbol? |
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Definition
The mean is in the very middle of the peak.
The mean is represented by x with a line over it. |
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Term
| What are the two types of microscope? |
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Definition
-Dissecting/Steroscopic
-Compound/Light |
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Term
| What are some differences between compound and dissecting microscopes? |
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Definition
-Different magnification abilities
-Different working distance
-Dissecting are always binocular |
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Term
| Define objective as it relates to microscopes |
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Definition
Three or four lenses mounted on a revolving nosepiece.
Each objective is a series of several lenses that magnify the image. |
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Term
| What is the conversion factor between milli and micro |
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Definition
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Term
| What things should you never do with a microscope? |
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Definition
-Touch the lens
- Carry by anything but the arm and base
-Unplug before turning off light
-Scoot the microscope |
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Term
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Definition
| The part on the microscope eyepiece that you can adjust and bring into focus |
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Term
| What are the differences between prokaryotic and eukaryotic cells? |
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Definition
Prokaryotic:
- no membrane bound organelles and nucleus
- smaller than eukaryotic
Eukaryotic:
-membrane bound nuclear area, and many organelles
-more complex |
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Term
| Draw and label and Amoeba |
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Definition
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Term
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Definition
| The random movement of particles suspended in a fluid. |
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Term
| What are the three "tonic" solutions? |
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Definition
Hypertonic:
-Solution with high concentration of solutes
-Water moves into hypertonic solutions, so cell will shrink
Hypotonic:
-Solution with lower concentration of solutes
-water moves out of hypotonic solution, so cell swells.
Isotonic:
-Equal concentrations |
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Term
| What model is commonly used to describe the characteristics of a cell membrane? |
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Definition
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Term
| What are the guidelines for writing the scientific name of an organism? |
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Definition
-Genus and specific epithet
-Genus is capitalized
-Specific epithet is not
-Underline or Italicize |
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Term
| Describe polar v. nonpolar molecules |
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Definition
Polar:
-Charged area on molecule
Nonpolar:
-uncharged molecule |
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Term
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Definition
The combined effects of concentration and pressure such as that from cell walls.
Water flows from hi to low potential.
Low solute and high pressure increase water potential. |
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Term
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Definition
| Has a polar and nonpolar tail on the same molecule. |
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Term
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Definition
| -Reddish pigment localized in the central vacuole of the cells of the roots of beets |
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Term
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Definition
-Means flammable
-Organic solvents are inflammable |
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Term
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Definition
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Term
| What biological conditions affect enzyme activity? |
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Definition
-pH
-Temperature
-Concentration |
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Term
| What is the difference between a catalyzed and an uncatalyzed reaction? |
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Definition
| Catalyzed reaction proceeds much faster than uncatalyzed because the catalyst lowers the activation energy. |
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Term
| Draw a diagram illustrating a catalyzed and uncatalyzed reaction. |
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Definition
X axis: Reaction progression
Y axis: Potential energy |
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Term
T/F
Enzymes immediately catalyze substrates and no complexes are formed |
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Definition
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Term
| Name a substrate and its enzyme |
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Definition
Substrate-Hydrogen Peroxide
Enzyme- Peroxidase |
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Term
| What is the optimal pH for trypsin and Pepsin? |
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Definition
Pepsin's optimal pH is extremely acidic.
Trypsin's optimal pH is extremely basic. |
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Term
| Why is hydrogen peroxide not stored in open beakers at room temp? |
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Definition
| Because it is very easily oxidized when exposed to air, so it evaporates easily and degrades to H2O. |
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Term
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Definition
| Changing an enzymes structure and function. |
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Term
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Definition
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Term
| Cellular respiration uses what substrate (initially) and produces what 3 final products? |
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Definition
| Glucose is broken down into CO2, H2O, and ATP |
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Term
| Draw and label a mitochondria |
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Definition
MItochondrial Matrix
Inner mitochondrial membrane
outer mitochondrial membrane
Intermembrane space |
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Term
| What are the order or reactions involved in cellular respiration? |
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Definition
Glycolysis
Formation of Acetyl CoA
Citric Acid Cycle
Electron Transport Chain
Chemiosmosis |
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Term
| What does CO2 combined with H2O form? |
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Definition
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Term
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Definition
| Degradation of glucose, oxygen, and water to form water, carbon dioxide and ATP |
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Term
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Definition
| Conversion of CO2 and H2O using light energyi into glucose, H20, and O2 |
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Term
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Definition
| Release of light energy from an excited electron as it falls back down to its ground state. |
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Term
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Definition
Yellow in acidic solution
Red in neutral to basic solution |
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Term
| What pigments are found in plants? |
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Definition
Chlorophyll a
Chlorophyll b
Xanthophylls
Carotenoids |
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Term
| Draw and label a chloroplast |
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Definition
Thylakoid membranes
Thylakoid
Stroma
Granum
Inner membrane
Outer membrane |
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Term
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Definition
| (Distance moved by pigment)/ (distance from pigment origin to solvent front) |
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