Chapter 21 Test

What is homeostasis?

• The process of cell division

• Maintaining stable internal conditions

• The breakdown of nutrients

• The production of energy

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NGSS.HS-LS1-3

What is the role of amino acids in the body?

• They are the building blocks of proteins

• They store genetic information

• They provide energy

• They are a type of sugar

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NGSS.HS-LS1-1

How do ionic bonds form?

• By sharing electrons

• By transferring electrons from one element to another

• By sharing protons

• By transferring protons from one element to another

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NGSS.HS-PS1-3

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What is one characteristic of inorganic compounds?

• They contain carbon-hydrogen bonds.

• They are not essential for human life.

• They do not contain carbon-hydrogen bonds.

• They are made by the human body.

Which ion in NaCl is positively charged?

• Cl⁻

• Na⁺

• O²⁻

• H⁺

Which macromolecule is made from monosaccharides?

• Lipid

• Protein

• Carbohydrate

• Nucleic acid

Which one would best describe protein?

• Store genetic information in the body

• Provide energy for the body

• form when amino acids join together

• Form cell membranes

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NGSS.HS-LS1-1

What are nucleic acids made from?

• Monosaccharides

• Nucleotides

• Amino acids

• Fatty acids

Which system sends a message through the nervous system to maintain body temperature?

• Digestive system

• Endocrine system

• Respiratory system

• Circulatory system

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NGSS.HS-LS1-3

What is one example of homeostasis that the body's organ systems maintain by shivering or sweating?

• Blood pressure

• Temperature

• Heart rate

• Muscle strength

Tags

NGSS.HS-LS1-3