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Macromolecules
Flashcards
29 cards
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Practice quiz
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Host live
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Questions
29
Answers
1
Nonliving things can grow, but only living things __________.
Decay
Develop
Use materials
Change
2
______ speed up reactions and are considered to be ________.
Lipids, energy
Carbohydrates, energy
Enzymes, catalysts
Proteins, hormones
3
What is the dependent variable?
The mass of the plane
The plane without paper clips
The distance the plane flies
The way the plane is thrown
4
The image below shows how building blocks of this macro-molecule are structured
carbohydrates
protein
lipids
nucleic acids
5
This term means maintaining a stable internal environment.
Adaptation
Homeostasis
Metabolism
Evolution
6
What is the group that remains unchanged and is used for comparison is called?
Change
Rearranged
Control
Variable
7
Water is good at sticking to other substances, especially if they are polar. This property is called _______.
Cohesion
Adhesion
Solubility
pH
8
Enzymes are specific. They only work on substrates that "fit" the enzymes active site. Lock and key model.
True
False
9
Term that describes the sum reactions in an organism like using energy, making proteins, digesting food.
Metabolism
Adaptation
Biology
Homeostasis
10
Which macromolecule stores genetic information?
Lipids
Protein
Carbohydrates
Nucleic acids
11
What is the independent variable?
The way the plane is thrown
Distance the plane flies
Plane without a paper clip
Mass of the plane
12
What is the control?
The way the plane is thrown
The plane without paper clips
The mass of the plane
The distance the plane flies
13
Due to hydrogen bonds, water molecules stick together. This property of water is called _________.
Adhesion
Solubility
Polarity
Cohesion
14
Nucleic acids are made up of _________________
DNA
nucleotides
amino acids
RNA
15
Water holds its temperature very well and it takes a lot of energy to change its temperature. This property is called:
Solubility
Adhesion
Cohesion
High Specific Heat
16
You need to eat, drink, and breathe because all living things ____________.
Respond to their environment
Are made of cells
Use energy and materials
Adapt over time
17
Water's polarity causes it to form __________ between water molecules.
Covalent bonds
Foreign bonds
Hydrogen bonds
Ionic bonds
18
Which answer explains why poppies open and close with the sun?
Its adapting over time to its environment.
It is using energy and materials.
Its made of cells.
It is responding to its environment.
19
Solid water floats on liquid water because it has a lower ______ than liquid water.
Hydrogen bonds
Surface tension
Density
Polarity
20
Which of the following is not a characteristic of life?
The ability to respond to your environment.
Being made of cells.
Being able to breathe.
The ability of a species to adapt over time.
21
Building blocks of proteins
nucleic acids
amino acids
glutenic acids
fatty acids
22
Which macro-molecule can be broken down into glucose and other simple sugars?
nucleic acis
protein
lipids
carbohydrates
23
The atoms in the water molecule are held together by ______.
Hydrogen Bonds
Ionic Bonds
Foreign Bonds
Polar covalent bonds
24
Enzymes speed up reactions by lowering activation energy.
True
False
25
What is the term for something that is added or changed in an experiment?
Constant
Variable
Algorithim
Control
26
___ are the main source of energy.
carbohydrates
lipids
nucleic acids
protein
27
Enzymes are a type of
Lipid
Nucleic Acid
Carbohydrate
Protein
28
Eggs and meat are good sources of
carbohydrates
protein
nucleic acids
29
We eat foods such as whole grains, fruits, and pasta to get what macro-molecule?
water
lipids
protein
carbohydrates
