Lab Modules
The molecule that gains an electron when forming an ionic bond becomes a cation.
False
All atoms contain at least one neutron.
False.
The light-independent reactions convert carbon dioxide to:
Glucose
What color is not absorbed by chlorophyll?
Green
During a reaction, a molecule is present that binds to the same activation site on an enzyme as the reactant, thereby reducing the amount of product formed. What type of molecule is present?
A competitive inhibitor
Which of the following does NOT impact membrane permeability?
ATP Availability
Which of the following is NOT true about carotenoids?
Beta carotine is a yellow pigment (Its like orange lmao)
Which of the following are inorganic molecules?
Carbon Dioxide (CO2) and Water (H2O)
How does environmental pH affect reaction rate?
Changes in pH alter the activation site, the structure of the enzyme, and the ionization status of the enzyme
Which of the following gives plants their characteristic green appearance?
Chlorophyll
Activators are a type of
Cofactor
Which type of chemical bond shares electrons?
Covalent
Catalysts increase the activation energy of a reaction.
False
Which of the following properties is typical of an ionic bond?
Electrically conductive, higher melting/boiling point
Catalase, polymerase, and amylase are all examples of what type of molecule?
Enzymes
Active transport moves molecules from areas of high concentration to low concentration using ATP.
False
An enzyme binds to an active site on the substrate
False
C2H4O2 is an inorganic molecule
False
Which of the following describes hydrogen bonding?
Interactions between positive and negative regions of polar molecules.
Atoms of the same element with different numbers of neutrons are called:
Isotopes
Which organ would require a large number of aquaporins?
Kidney
What are the reactants involved in photosynthesis?
Light Energy, Carbon Dioxide, Water
What type of macromolecules is often referred to as a fat?
Lipids
How does membrane permeability change with concentration?
Membrane permeability increases as concentration decreases.
Identify the units used to define molarity
Moles/Liter
What of the following subatomic particles are found in the nucleus?
Neutrons and Protons
Which of the following does not affect enzyme selectivity? Molecular Shape Hydrophilic Interactions Electrostatic Interactions None of the above
None of the above
Thymine, cytosine, and adenine can be found in what macromolecule?
Nucleic Acids
What is the difference between diffusion and osmosis.
Osmosis refers to water molecules, whereas diffusion refers to any molecule
Which type of covalent bond is the result of unequal sharing of electrons?
Polar
What term describes the ratio of the distance of the analytes travel relative to the distance of the eluting solvent during paper chromatography?
Retention Factor (Rf)
Which hypothesis for why plants roots are not green seems most likely?
Roots serve the function of absorbing water and nutrients and anchoring plants to the ground. therefore, the chlorophyll that absorbs sunlight is reduced.
Through what mechanism do enzymes increase the breakdown of substrates into products?
The activation energy of the reaction is lowered when the enzyme is present.
What information is NOT required to calculate molarity?
The number of moles of solvent.
Why are aquaporins important in some tissues?
They facilitate movement of water molecules when osmosis alone is not sufficient.
Which nucleotide is not found in DNA?
Uracil
What would happen to a cell placed in a hypertonic solution?
Water would leave the cell, causing it to shrink
Stacks of thylakoids are called
grana
Hemoglobin would be classified as a:
protein
