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Macromolecules / Scientific Method Review Flashcards | StudBud
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Macromolecules / Scientific Method Review
Macromolecules / Scientific Method Review
30 terms
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Unit 1 living environment. Scientific method, characteristics of life, biochemistry, and graphing
Flashcards
30 cards
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Practice quiz
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Host live
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Questions
30
Answers
1
The variable that does not change and is "normal"
Dependent variable
Control variable
Indepedent varaible
2
What is the independent variable of this line graph?
Toxic chemicals released
Reporting year
3
How do enzymes affect chemical reactions?
They speed it up
They slow it down
They stop the reaction from going
4
To be made of only one cell
polycellular
onecellular
multicellular
unicellular
5
Glucose or Monosaccharides are the building block to which macromolecule?
Nucleic Acids
Carbohydrates
Protein
Lipids
6
What is an organic molecule?
A molecule that has a carbon-hydrogen bond
A molecule that has a carbon-nitrogen bond
A molecule that has a carbon-oxygen bond
A molecule that has a carbon bond
7
Enzymes have a specific shape. True or false
True
false
8
What scale would we use for the dependent variable in the data table?
Go by 10s
Go by 20s
Go by 2s
Go by 5s
9
pH of 8-14 is considered an acid
True
False
10
To be made of many cells
polycellular
multicellular
manycellular
unicellular
11
The variable that changes
Dependent variable
Control variable
Independent varible
12
Identify the independent variable (IV) and dependent variable (DV)
IV: seconds ball stay in air DV: size of ball
IV: type of ball DV: different body parts
IV: different body parts DV: type of ball
IV: size of ball DV: number of seconds ball stays in air
13
What factors affect enzymes?
Amount of substate
Temperature
pH
Amount of water
14
pH of 1-6 is considered an acid.
True
False
15
State the hypothesis. What effect does the amount of rain have on plant growth?
If the rain increases, then plant growth will increase
I think plants grow because of water
If the plant growth increases, then the rain will increase
16
Which molecule cannot pass into a cell?
Glucose
Water
Oxygen
Starch
17
What is the dependent variable in this data table?
Number of children
Method of travel
18
Which molecule could go into a cell without being broken down?
Enzyme
Starch
Glucose
Lipid
19
The pH of 7 is not neutral
False
True
20
What are the four macromolecules?
Protein, Lipids, Enzymes, Fats
Meat, DNA, RNA, Fats
Protein, Carbohydrates, Lipids, Nucleic Acids
Protein, Carbohydrate, Glucose, Fats
21
Which is the independent variable on this data table
Amount of iron
Type of cereal
22
What characteristic of life is this an example of?
All living things evolve
All living things reproduce
All living things have DNA
All living things obtain and use energy
23
The process all scientists use when solving problem
Inference
Observation
Scientific method
Theory
24
The variable you collect data on and changes due to the independent variable
control variable
Indepedent variable
dependent variable
25
What is the dependent variable on this line graph?
Depth
Bubbles/min
26
Enzymes can work with all chemical reactions. True or False
True
False
27
Identify the independent variable (IV) and dependent variable (DV) in this experiment
IV: type of goldfish DV: amount of food
IV: Goldfish weight DV: number of times feed
IV: number of times feed DV: Goldfish weight
IV: Amount of food DV: Type of goldfish
28
Amino Acids are the building block to
Carbohydrates
Protein
Nucleic Acids
Lipids
29
When you make an educated guess to answer the question you are trying to solve
experiment
observation
hypothesis
conclusion
30
Enzymes are an example of what macromolecule?
Carbohydrates
Lipids
Proteins
Nucleic Acids
