Substance that resists a change in pH
-Base
-Acid
-Buffer
-Salt - ANSWER -Buffer
Product (along with water) of a reaction between an acid and a base
-Base
-Acid
-Buffer
-Salt - ANSWER -Salt
Which of the following are typically required to maintain a stable internal environment?
-Positive Feedback Mechanisms
-Negative Feedback Mechanisms
-An unstable outside environment.
-Decreased atmospheric pressure - ANSWER -Negative feedback mechanisms
Which level of protein structure refers to the twisting or pleating of the polypeptide
chain?
-quaternary structure
-primary structure
-secondary structure
-tertiary structure - ANSWER -Secondary structure
The most abundant chemical in the body; transports and regulates body temperature
-food
-heat
-pressure
-water - ANSWER -Water
, Substances that provide the body with necessary chemicals; used for energy or
building
-food
-heat
-pressure
-water - ANSWER -Food
A form of energy released during metabolism
-food
, -heat
-pressure
-water - ANSWER -Heat
An application of force that helps move things in the body
-food
-heat
-pressure
-water - ANSWER -Pressure
Glucose and glycogen are examples of what group of organic compounds?
-Nucleic acids
-Proteins
-Lipids
-Carbohydrates - ANSWER -Carbohydrates
Which of the following lists best illustrates increasing levels of complexity?
-Organelles, cells, tissues, organs, organ systems
-Tissues, cells, organs, organelles, organ systems
-Cells, tissues, organelles, organs, organ systems
-Organs, organelles, organ systems, cells, tissues - ANSWER -Organelles, cells,
tissues, organs, organ systems
What is the definition of homeostasis?
-Equilibrium between the external and internal environments
-Process that moves conditions toward a normal state
-Maintenance of a stable internal environment
-All the chemical reactions necessary to maintain life - ANSWER -Maintenance of a
stable internal environment
Which organic molecule is formed of branched chains of sugar units, and is used by
humans (and other mammals) to store carbohydrate in the liver and skeletal muscle?
-Triglyceride
-Glycogen
-Starch
-Cholesterol - ANSWER -Glycogen
Gastric juice (fluid in the stomach) has a pH value of 2.0. Therefore, this solution is
-acidic
-basic
-neutral - ANSWER -acidic
Examples of nucleic acids include
-RNA and DNA
-steroids and triglycerides
-enzymes and RNA
-Base
-Acid
-Buffer
-Salt - ANSWER -Buffer
Product (along with water) of a reaction between an acid and a base
-Base
-Acid
-Buffer
-Salt - ANSWER -Salt
Which of the following are typically required to maintain a stable internal environment?
-Positive Feedback Mechanisms
-Negative Feedback Mechanisms
-An unstable outside environment.
-Decreased atmospheric pressure - ANSWER -Negative feedback mechanisms
Which level of protein structure refers to the twisting or pleating of the polypeptide
chain?
-quaternary structure
-primary structure
-secondary structure
-tertiary structure - ANSWER -Secondary structure
The most abundant chemical in the body; transports and regulates body temperature
-food
-heat
-pressure
-water - ANSWER -Water
, Substances that provide the body with necessary chemicals; used for energy or
building
-food
-heat
-pressure
-water - ANSWER -Food
A form of energy released during metabolism
-food
, -heat
-pressure
-water - ANSWER -Heat
An application of force that helps move things in the body
-food
-heat
-pressure
-water - ANSWER -Pressure
Glucose and glycogen are examples of what group of organic compounds?
-Nucleic acids
-Proteins
-Lipids
-Carbohydrates - ANSWER -Carbohydrates
Which of the following lists best illustrates increasing levels of complexity?
-Organelles, cells, tissues, organs, organ systems
-Tissues, cells, organs, organelles, organ systems
-Cells, tissues, organelles, organs, organ systems
-Organs, organelles, organ systems, cells, tissues - ANSWER -Organelles, cells,
tissues, organs, organ systems
What is the definition of homeostasis?
-Equilibrium between the external and internal environments
-Process that moves conditions toward a normal state
-Maintenance of a stable internal environment
-All the chemical reactions necessary to maintain life - ANSWER -Maintenance of a
stable internal environment
Which organic molecule is formed of branched chains of sugar units, and is used by
humans (and other mammals) to store carbohydrate in the liver and skeletal muscle?
-Triglyceride
-Glycogen
-Starch
-Cholesterol - ANSWER -Glycogen
Gastric juice (fluid in the stomach) has a pH value of 2.0. Therefore, this solution is
-acidic
-basic
-neutral - ANSWER -acidic
Examples of nucleic acids include
-RNA and DNA
-steroids and triglycerides
-enzymes and RNA
