Living Organisms and Homeostasis - NYS Regents Review

Living Organisms and Homeostasis - NYS Regents Review

Assessment

Flashcard

Biology

9th - 10th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What are enzymes?

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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