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Chemical Equations, Energy Diagrams, Systems in the Body Quiz

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Chemical Equations, Energy Diagrams, Systems in the Body Quiz

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Questions and Answers

What is the main function of negative feedback loops in maintaining homeostasis?

To completely ignore changes in body conditions

To dampen deviations from the set point (correct)

To amplify deviations from the set point

To allow for rapid and drastic changes in body conditions

How do endothermic reactions differ from exothermic reactions?

Exothermic reactions absorb energy from the surroundings

Endothermic reactions release energy to the surroundings

Endothermic reactions absorb energy from the surroundings (correct)

Exothermic reactions release energy to the surroundings

Which of the following gases is a major contributor to the greenhouse effect?

Methane (CH4) (correct)

Oxygen (O2)

Hydrogen (H2)

Nitrogen (N2)

How does skin help in maintaining constant body temperature?

By secreting excess heat through sweat Signup and view all the answers

Which system uses hormones as signaling molecules to regulate body functions?

Endocrine system Signup and view all the answers

What is the purpose of bond energy calculations in determining if a reaction is endothermic or exothermic?

To measure the amount of heat absorbed or released in a reaction Signup and view all the answers

Which of the following processes involves the absorption of energy from the surroundings?

Endothermic reaction Signup and view all the answers

In the context of maintaining constant body temperature, which factor plays a crucial role in enhancing the greenhouse effect?

Emission of methane gases Signup and view all the answers

What is the primary function of skin in relation to maintaining constant body temperature?

Reducing heat loss through insulation Signup and view all the answers

Which of the following is a key difference between the nervous and endocrine systems?

Nervous system uses electrical signals, while endocrine system uses chemical signals. Signup and view all the answers

Which of the following best defines homeostasis?

The process of maintaining a constant internal environment despite external changes. Signup and view all the answers

How do negative feedback loops contribute to maintaining homeostasis?

By limiting or reversing changes in the internal environment. Signup and view all the answers