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Biology DIA 1 Review: Scientific Method, Properties of Water, Macromolecules, and Enzymes Flashcards | StudBud
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Biology DIA 1 Review: Scientific Method, Properties of Water, Macromolecules, and Enzymes
Biology DIA 1 Review: Scientific Method, Properties of Water, Macromolecules, and Enzymes
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Florida Biology standards-based Unit 1 exam.
Flashcards
33 cards
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Practice quiz
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Questions
33
Answers
1
What is the optimum temperature of this enzyme?
22°C
37°C
50°C
15°C
2
What is a major function of carbohydrates?
Stores energy
Short term energy storage/ Rapid energy release
Makes up DNA
Used for growth and repair
3
What are Nucleic Acids composed of
Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorus
Carbon, Hydrogen, Oxygen, Phosphorus
Carbon, Hydrogen, Oxygen, Nitrogen
Carbon, Hydrogen, Oxygen
4
How does ice benefit aquatic environments
the hydrogen bonds produce more oxygen
the hydrogen bonds increase activity under the surface
its crystalline structure
acts as an insulator
5
What macromolecule monomer of DNA and RNA is shown here?
Carbohydrates
Lipid
Protein
Nucleic Acid
6
What macromolecules does this image represent?
Nucleic Acid
Carbohydrates
Protein (Amino Acid)
Lipid
7
How does temperature affect enzyme activity?
Enzymes denature if the temperature stays constant
Too high temperatures will denature enzymes
Fluctuating temperatures will denature enzymes
Enzymes work at all temperatures
8
Which of these is correct about the chemical structure of water?
Neither are correct
There are 2 oxygens and 1 hydrogen
The oxygen atom is negative and two hydrogen atoms are positive
Both are correct
9
What are the monomers for Nucleic Acids?
Oxygen
5-Carbon Sugar
Phosphate Group
Nitrogenous Base
10
What is the optimum pH of the enzyme?
8
3
5
7
11
What macromolecule is this?
Amino Acid
Lipid
Carbohydrate
Nucleic Acid
12
Nucleic Acids are composed of...
Chloroplasts
Mitochondira
Nucleotides
Cells
13
The part of the experiment that has no independent variable and serves as a baseline.
dependent
control
independent
constants
14
Name the
Independent Variable.
Does temperature affect how fast Cinderella's carriage is?
Her glass slipper
How fast her carriage goes
Temperature
Her carriage
15
The independent variable from the graph below is
amount of water
fertilizier
height of the plant
plant growth
16
Water' s high specific heat:
It must reach a specific temperature before you can drink it
It is only hot on specific times of day
Moderates local temperature and global climate
It does not heat in a general way
17
Adhesion is defined as:
the attraction of water molecules to other substances
the attraction of water molecules to themselves
Water seeping into the ground
Water falling from the sky
18
Enzymes can denature (break down) if ________ and/or ________ are not in the correct range.
Sodium, Phosphorus
pH, Temperature
Nutrients, Lipids
Oxygen, CO2
19
Ice is less dense than liquid water because:
Water expands when it freezes
Ice is not less dense than water
Water adheres to ice, pushing it to the surface
Water loses mass when frozen
20
Nucleic Acids store ___
Old Socks
Secret Information
Genetic Information
Long term energy
21
When water sticks to itself it is called _____.
Adhesion
Surface Tension
Cohesion
Viscosity
22
What is the independent variable?
Total Wages
176
22
Hours Worked
23
Some examples of lipids are...
DNA, RNA, ATP
Triglycerides, fats, oils, butter
Glucose, fructose, lactose
Enzymes, insulin, hemoglobin
24
Which properties of water help a plant get water to the tops of it's leaves?
Capillary action (cohesion and adehsion)
Surface Tension
Polarity
High specific heat
25
What is the dependent variable?
1
Week
Per
Pounds
26
How is water a polar molecule?
It has a slightly positive end and a slightly negative end
It has an overall negative charge
It has no charge
It has an overall positive charge
27
What macromolecules does this image represent ?
Protein
Nucleic Acid
Carbohydrates
Lipid
28
An acidic pH inactivates enzyme activity
True
False
29
Water is called the universal solvent because:
It has a high heat capacity
It dissolves more substances than any other liquid
It SOLVES universal problems
It can dissolve substances in all three states of matter
30
The dependent variable in an experiment is:
The variable you measure
The varialbe that you keep the same
The variable you change
31
What is a major function of lipids?
Makes up DNA
Stores energy
Used for growth and repair
Rapid energy release
32
The monomers of proteins are amino acids
False
True
33
Which of the macromolecules contain nitrogen?
proteins only
proteins and lipids
nucleic acids and proteins
nucleic acids only
