
Biology Final Exam
Authored by Lisa Thompson
Science
9th Grade
NGSS covered

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sodium and potassium are necessary electrolytes. As a result, the human body uses a great deal of energy keeping these electrolytes in balance. Explain why the body needs to use energy for this process.
ATP is required to release potassium ions outside the cell.
ATP is required to allow entry of sodium ions inside the cell.
ATP is required to allow entry of potassium and sodium ions inside the cell.
ATP is required to move sodium ions against their concentration gradient outside the cell.
Tags
NGSS.HS-LS1-3
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A reaction in which a water molecule is added to a large molecule in order to break it into multiple smaller molecules. Which type of reaction is described above?
hydrolysis
enzyme reaction
catalysis
dehydration synthesis
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A lack of protein in the diet can cause hair loss. Which of the following statements explains why this occurs?
Due to lack of protein in the diet, energy will be lost, leading to hair loss.
Due to lack of protein in the diet, our body will not be able to form other proteins; it will conserve the protein it has for critical use, leading to hair loss.
Lack of protein in the diet can weaken the immune system, leading to hair loss.
Lack of protein in the diet will lead to breakage of disulfide bonds between proteins, leading to hair loss.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following would most likely qualify as a macromolecule?
DNA
RNA
Protein
All of the above
Tags
NGSS.HS-LS1-6
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
This graph above shows the body temperature of an animal in various hours of the day. What can be said about this animal?
The animal keeps its body temperature relatively constant.
The animal is most active during the morning hours.
The animal is more active when its body temperature is above 30°C.
The animal is active at night.
Tags
NGSS.HS-LS1-3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Starch is a molecule that stores energy. When energy is needed, the starch molecules can be broken down quickly. This chemical reaction produces which of the following?
Monosaccharides
Lipids
Proteins
Amino acid chains
Tags
NGSS.HS-LS1-7
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What phase of mitosis?
anaphase
prophse
metaphase
cytokinesis
Tags
NGSS.HS-LS1-4
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