12 Questions
What is the main function of negative feedback loops in maintaining homeostasis?
To dampen deviations from the set point
How do endothermic reactions differ from exothermic reactions?
Endothermic reactions absorb energy from the surroundings
Which of the following gases is a major contributor to the greenhouse effect?
Methane (CH4)
How does skin help in maintaining constant body temperature?
By secreting excess heat through sweat
Which system uses hormones as signaling molecules to regulate body functions?
Endocrine system
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
Which of the following processes involves the absorption of energy from the surroundings?
Endothermic reaction
In the context of maintaining constant body temperature, which factor plays a crucial role in enhancing the greenhouse effect?
Emission of methane gases
What is the primary function of skin in relation to maintaining constant body temperature?
Reducing heat loss through insulation
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.
Which of the following best defines homeostasis?
The process of maintaining a constant internal environment despite external changes.
How do negative feedback loops contribute to maintaining homeostasis?
By limiting or reversing changes in the internal environment.
This quiz covers balancing chemical equations, drawing stick diagrams for various compounds, defining endothermic and exothermic reactions, sketching energy level diagrams, bond energy calculations, homeostasis definition with examples, comparison of the nervous and endocrine systems, and more. Test your knowledge on various topics related to chemistry and biology.
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