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Quarterly Assessment Review MP1

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Quarterly Assessment Review MP1. Question 1 - 10. You should always be aware of and follow these in a lab. Answer 1 – 10. What are lab safety rules?. Question 1 - 20.

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Presentation Transcript
question 1 10
Question 1 - 10
  • You should always be aware of and follow these in a lab.
answer 1 10
Answer 1 – 10
  • What are lab safety rules?
question 1 20
Question 1 - 20
  • A hypothesis is a proposed scientific explanation based on prior knowledge. A well tested explanation that unifies a broad range of observations is this.
answer 1 20
Answer 1 – 20
  • What is a theory?
question 1 30
Question 1 - 30
  • Scientists are always observing a doing this. It is the first step of the scientific method.
answer 1 30
Answer 1 – 30
  • What is asking questions?
question 1 40
Question 1 - 40
  • This type of variable refers to what is observed or measured in an experiment. It changes in response to the manipulated variable.
answer 1 40
Answer 1 – 40
  • What is the responding variable?
question 1 50
Question 1 - 50
  • In an experiment, this is the variable that you purposefully change. In our rabbit example, it would be the rabbit who was given the ice pack.
answer 1 50
Answer 1 – 50
  • What is the manipulated variable?
question 2 10
Question 2 - 10
  • This is the common measurement system used by scientists. It is based on a scale that moves by multiples of 10.
answer 2 10
Answer 2 – 10
  • What is the metric system?
question 2 20
Question 2 - 20
  • This is the metric unit of measurement for mass. We use a triple beam balance to measure these.
answer 2 20
Answer 2 – 20
  • What is a gram?
question 2 30
Question 2 - 30
  • 71.0 kiloliters is equal to this many decaliters?
answer 2 30
Answer 2 – 30
  • What is 7,100 decaliters?
question 2 40
Question 2 - 40
  • This unit of the metric system is used to measure the size of very small objects, such as the length of a cell. It is 1/1000 of a milimeter.
answer 2 40
Answer 2 – 40
  • What is a mircrometer (nm)?
question 2 50
Question 2 - 50
  • These are the seven prefixes of the metric system. They are represented by KHDUDCM.
answer 2 50
Answer 2 – 50
  • What are kilo-, hecto-, deca-, base unit, deci-, centi-, mili-?
question 3 10
Question 3 - 10
  • All atoms will have the same number of these two subatomic particles. Their positive and negative charges cancel each other out, making the atom neutral.
answer 3 10
Answer 3 – 10
  • What are protons and electrons?
question 3 20
Question 3 - 20
  • These produces a higher number of H+ ions when in a solution. They range from 1-6 on the pH scale.
answer 3 20
Answer 3 – 20
  • What is an acid?
question 3 30
Question 3 - 30
  • This is the attraction between a H atom and an electronegative atom, such as O. It is the bond that holds water molecules together.
answer 3 30
Answer 3 – 30
  • What are hydrogen bonds?
question 3 40
Question 3 - 40
  • Weak acids and bases are found towards the middle of the pH scale, closest to this number. It is the pH of pure water.
question 3 50
Question 3 - 50
  • Our bodies need to maintain a specific range of pH all over, except here, which is much more acidic.
answer 3 50
Answer 3 – 50
  • What is the stomach?
question 4 10
Question 4 - 10
  • Enzymes speed up chemical reactions, making them biological ones of these.
answer 4 10
Answer 4 – 10
  • What are catalysts?
question 4 20
Question 4 - 20
  • This macromolecule is made up of a glycerol molecule and three fatty acids chains. It helps make up part of the cell membrane.
answer 4 20
Answer 4 – 20
  • What are lipids?
question 4 30
Question 4 - 30
  • These macromolecules give us our main source of energy, even if it is only for a short period of time.
answer 4 30
Answer 4 – 30
  • What are carbohydrates?
question 4 40
Question 4 - 40
  • Enzyme function can be effected by drastic changes in these two internal conditions.
answer 4 40
Answer 4 – 40
  • What are temperature and pH?
question 4 50
Question 4 - 50
  • An amino acid structure contains an amino group, a carboxyl group and this, which is different for each amino acid.
answer 4 50
Answer 4 – 50
  • What is the R-group sidechain?
question 5 10
Question 5 - 10
  • These are the two inventors of the microscope. Without them, we would have never discovered the cell.
answer 5 10
Answer 5 – 10
  • Who are Robert Hooke and Anton van Leeuwenhoek?
question 5 20
Question 5 - 20
  • This type of microscope uses a very fine probe to view the surface of a specimen. You can see live organisms with it.
answer 5 20
Answer 5 – 20
  • What is a scanning probe microscope?
question 5 30
Question 5 - 30
  • In plant cells, this is the outermost layer, which provides structure, support and protection.
answer 5 30
Answer 5 – 30
  • What is the cell wall?
question 5 40
Question 5 - 40
  • These are three structures of the cell responsible for making and sending proteins where they need to go.
answer 5 40
Answer 5 – 40
  • What are the ribosomes, endoplasmic reticulum and golgi apparatus?
question 5 50
Question 5 - 50
  • This is one characteristic of all cells. In eukaryotic cells it is found in the nucleus. In prokaryotic cells it is free floating.
answer 5 50
Answer 5 – 50
  • What is DNA?
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