Which would be better to use for a sample size?\
100 people
300 people
5,000 people
5,000 people
100
What is the strongest type of bond? Weakest?
Covalent bonds; Hydrogen bonds
100
What is in milk that makes it a carbohydrate? Is it simple or complex?
Lactose, simple
100
What is the recommended percentage of trans fat?
0%
100
How many electrons does Oxygen (Atomic number 8) need to fill it's outer most electron shell?
4
200
What is the difference between a hypothesis and a theory?
A hypothesis is a prediction based on observation
A theory is a hypothesis that has been tested many times with a consistant result. It is also more general.
200
What type of bond is this? (see board)
Ionic
200
What are the functions of carbohydrates?
energy/fuel
200
Looking at a fatty acid molecule, how can you tell if it is saturated or unsaturated?
Unsaturated fatty acids have a "kink" in one on the legs.
200
When acids are in water what do they release? What do bases release?
Acids: H+
Bases: OH-
300
What is the best way to take a population sample to eliminate bias?
Make it a ransom sample.
300
What type of bond is salt?
Ionic
300
Name three examples of complex carbohydrates.
bread, pasta, potatoes, fruit, whole grains
300
What type of cholesterol is good?
HDL
300
Put these scientific method steps in order.
draw a conclusion
observation
design an experiment
hypothesis
collect data
Observation, hypothesis, design an experiment, collect data, draw a conclusion
400
Name 2 examples of scientific theories.
Evolution, gravity, heliocentric
400
What type of bond is this? (see board)
Hydrogen
400
What are the three types of lipids?
Fats, Phospholipids, Steroids
400
What is the best type of fat for your body?
Unsaturated
400
What is responsible for the cohesive property of water?
Hydrogen bonds between the oxygen atom of one water molecule and the hydrogen atom of another water molecule.
500
What are three ways to reduce bias in an expirament and ensure reliable data?
Random sample, large sample size, have a control group, double-blind study
500
Draw a polar molecule. Why is it not non-polar? What type of bond is it?
On board; Polar molecuules do not share electrons equally (one atom is pulling more than others); Covalent bond
500
What are the monomers for each macromolecule?
Carbohydrates
Lipids
Proteins
Nucleic Acids
Coheasion (sticks together), Adheasion (sticks to other surfaces), moderates temperture, universal solvent (easily forms mixtures), less dense than solid