Macromolecules
The body will always digest which macromolecule for energy first?
Carbs
Which piece of equipment is best for measuring 25 mL of liquid?
Graduated cylinder
Water is known as a universal _____.
Solvent
When designing an experiment, scientists will test a relationship between a “cause” and an “effect.” The “effect,” also represented by what the scientist measures and records, is known as the____.
Dependent variable
Which of the following terms represents the smallest part of an element that still has the properties of that element?
Atom
The macromolecules that would most likely be involved in contracting muscles would be _______.
Proteins
Which piece of glassware is best for holding liquids but not measuring?
Beaker
What type of molecule is water?
Polar
What is kept the same in all groups during an experiment?
Constant
What is a guess based on observations?
Inference
The macromolecules that make up the majority of the cell membrane’s structure are_______.
Lipids
What piece of equipment is used to transfer small amounts of liquid?
Pipette
What is the attraction between water molecules called?
Cohesion
What is the independent variable in an experiment testing plant growth with different amounts of light?
Light
If measurements of a pencil are recorded as 15.33 cm, 15.34 cm, and 15.33 cm, but the actual length is 15.85 cm, the data is considered what?
Precise
We obtain all of the macromolecules from the food that we eat except for _____.
Nucleic Acids
What piece of equipment should never be used to measure liquid volume?
Test tube
What property of water is the reason life can exist under frozen surfaces in polar seas because…
High Specific Heat
In a study on how caffeine affects goldfish breathing, what is the independent variable?
Caffeine
What is the first step of the scientific method?
Observation
Animals store most of their excess energy reserves as _______ because…
fat; they store twice as much energy per gram.
What property of water causes it to curve at the top of a graduated cylinder?
Meniscus
When placed in water, oil does not dissolve and stays separate. This means oil is __________ and __________.
hydrophobic and nonpolar
How do you structure/write a hypothesis
If _IV_, then _DV_, because.....
What 3 things must be considered when designing a solution for a problem with technology?
Cost, Time, and Materials (availability, durability, environmentally conscience, etc.)