What are enzymes?
Living Organisms and Homeostasis - NYS Regents Review

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Biology
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9th - 10th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
Enzymes are biological catalysts that speed up chemical reactions in living organisms by lowering the activation energy required for the reaction.
2.
FLASHCARD QUESTION
Front
What is homeostasis?
Back
Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.
3.
FLASHCARD QUESTION
Front
What is a feedback mechanism?
Back
A feedback mechanism is a biological process that uses the conditions of one component to regulate the function of another, often to maintain homeostasis.
4.
FLASHCARD QUESTION
Front
What role do vacuoles play in single-celled organisms?
Back
Vacuoles are storage structures in single-celled organisms that hold various substances, including nutrients, waste products, and water.
5.
FLASHCARD QUESTION
Front
What is the function of insulin in the human body?
Back
Insulin is a hormone produced by the pancreas that helps regulate blood sugar levels by facilitating the uptake of glucose into cells.
6.
FLASHCARD QUESTION
Front
What is the significance of staining in microscopy?
Back
Staining enhances the visibility of cellular structures under a microscope by adding color to specific components, making them easier to observe.
7.
FLASHCARD QUESTION
Front
What is the normal concentration of salt solutions in the human circulatory system?
Back
The normal concentration of salt solutions in the human circulatory system is isotonic, meaning it has the same concentration of solutes as the cells.
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