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BACE - Version A – Biochemistry-Chemistry Questions with Solutions
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BACE - Version A – Biochemistry-Chemistry
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BACE - Version A – Biochemistry-Chemistry
NaCl - answer Ionic
H20 - answer Polar Covalent
CH4 - answer Nonpolar Covalent
Which of the following should be used to calculate the amount of compound required to
make a solution? - answer Molecular weight
Carbohydrates - answer Example: cellulose. Functions: energy storage, receptors,
structure of plant cell wall.
Lipids - answer Example: cholesterol. Functions: membrane structure, energy storage,
insulation.
Proteins - answer Example: enzymes. Functions: structure, receptors, transport.
Nucleic acids - answer Example: RNA. Functions: information storage and transfer.
A solvent is the dissolved matter in a solution. - answer False
Carbon dioxide as a by-product benefits the brewing and baking industry in a process
called fermentation. When microorganisms (usually yeast) undergo fermentation, they
obtain their energy by: - answer Anaerobic respiration
Which of the following graphs represents the change in glucose and maltose
concentrations over time? - answer Image 2
The enzyme maltase catalyzes the breakdown of maltose into glucose. A technician
added maltase to a solution of maltose to be incubated at 37°C. Samples were taken
from the reaction tube every five minutes over the course of one hour, to measure the
glucose concentration. After an hour, the technician noticed the water bath failed to
reach 37°C (it only warmed to 25°C).
Which of the following is the most likely outcome of the reaction? - answer The enzyme
activity would decrease, yielding the same level of glucose over a longer time period.
How does DNA differ from one species to another? - answer The number of genes and
non-coding regions
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