Lab Equipment and Measurement
This piece of equipment is designed to measure length
Metric Ruler/Meter Stick
This reaction joins monomers together by removing a molecule of water
dehydration synthesis
Oil does not dissolve in water and remains separate from it. Oil is therefore described as ________
Hydrophobic
This macromolecule includes sugars and starches, primarily associated with quick energy
carbohydrates
When you see a wet sidewalk and conclude that it probably rained while you were inside, you are making this
An inference
This metric unit is commonly used to measure the mass of a small object
Which macromolecule contains the genetic instructions that tell cells how to make proteins
Nucleic Acids
Water is described as a polar molecule. This polarity helps water perform this important function for living things.
Water is an excellent solvent
This macromolecule is made form amino acids and has functions that include muscle contraction, transport, and enzymes
Proteins
This type of observation uses numbers or measurements
Quantitative Observation
A student measures an object repeatedly and gets nearly the same measurement every time, but all of the measurements are far from the actual value. The measurements would be considered highly _______ but not highly _______
Precise, accurate
A fatty acid containing one or more carbon-carbon double bonds is classified as what
Unsaturated
Ice can float on liquid water because solid water is _______ dense than liquid water
Less
Name the Monomer of each macromolecule
Monosaccharides, amino acids, nucleotides, and fatty acids
What is the difference between Quantitative and Qualitative data?
Quantitative - expressed with numbers or qualities
Qualitative - gained through observation
If I am measuring the mass of a substance in a container using a triple beam balance, what should I do first?
Find the weight of the container by itself
What is it called when two amino acids for a bond
A peptide bond
The curved surface seen at the top of water in a graduated cylinder is called what?
Meniscus
Name the macromolecule that the body generally uses for energy first when it is available, and name it's polymer
Carbohydrates - Polysacchrides
A scientist investigates whether rock music affects plant growth. The scientist changes the amount of music the plant receives and measures plant growth. Identify the Independent and Dependent Variable
IV: Amount/Exposure to rock music
DV: Plant Growth
You need exactly 25mL of a liquid and want the most precise measurement possible. You have a beaker, flask, test tube, and graduated cylinder. Which should you choose?
Graduated Cylinder
What is the difference between dehydration synthesis and hydrolysis
Dehydration synthesis builds larger molecules by removing water, while hydrolysis breaks larger molecules apart by adding water.
What water property helps regulate cell temperatures in organisms
High Specific Heat
Name all four macromolecules, their monomers and polymers, and one major function
Carbohydrates - Monosaccharides + Polysaccharides - Quick Energy
Lipids - Fatty Acids + Triglyceride - Long Term Energy
Proteins - Amino Acids + Polypeptide - Muscle Contractions
Nucleic Acids - Nucleotides + DNA/RNA - Genetic Information
When designing a solution to a problem, what are three things scientists/engineers need to consider
Cost, Time, Materials