Q: What is homeostasis?

A: Homeostasis is the body’s ability to maintain stable internal conditions, such as temperature, pH, and oxygen levels, despite changes in the external environment.

Q: What are the two types of feedback mechanisms in homeostasis?

A: Negative feedback (which reverses changes to restore balance) and positive feedback (which amplifies changes until a specific outcome is reached).

Q: Name the four major groups of organic substances in the body.

A: Carbohydrates, lipids, proteins, and nucleic acids.

Q: What is the primary function of carbohydrates in the body?

A: Carbohydrates provide energy and serve as a key fuel source for cellular processes.

Q: What role do enzymes play in cell metabolism?

A: Enzymes act as biological catalysts that speed up chemical reactions without being consumed in the process.

Q: What is the difference between mitosis and meiosis?

A: Mitosis produces two identical daughter cells for growth and repair, while meiosis produces four genetically unique gametes for reproduction.

Q: List the four main types of tissue in the human body.

A: Epithelial, connective, muscle, and nervous tissue.

Q: What are the five homeostatic functions of bones?

A: Support, protection, movement, mineral storage, and blood cell formation (hematopoiesis).

Q: What is an articulation in the skeletal system?

A: An articulation, or joint, is the point where two or more bones meet, allowing for varying degrees of movement.

Q: What are the three major types of muscle tissue, and which is primarily responsible for voluntary movement?

A: Skeletal, cardiac, and smooth muscle; skeletal muscle controls voluntary movement.

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StudyStack Set 1

Flashcard Set: Weeks 1–6

Question	Answer
Q: What is homeostasis?	A: Homeostasis is the body’s ability to maintain stable internal conditions, such as temperature, pH, and oxygen levels, despite changes in the external environment.
Q: What are the two types of feedback mechanisms in homeostasis?	A: Negative feedback (which reverses changes to restore balance) and positive feedback (which amplifies changes until a specific outcome is reached).
Q: Name the four major groups of organic substances in the body.	A: Carbohydrates, lipids, proteins, and nucleic acids.
Q: What is the primary function of carbohydrates in the body?	A: Carbohydrates provide energy and serve as a key fuel source for cellular processes.
Q: What role do enzymes play in cell metabolism?	A: Enzymes act as biological catalysts that speed up chemical reactions without being consumed in the process.
Q: What is the difference between mitosis and meiosis?	A: Mitosis produces two identical daughter cells for growth and repair, while meiosis produces four genetically unique gametes for reproduction.
Q: List the four main types of tissue in the human body.	A: Epithelial, connective, muscle, and nervous tissue.
Q: What are the five homeostatic functions of bones?	A: Support, protection, movement, mineral storage, and blood cell formation (hematopoiesis).
Q: What is an articulation in the skeletal system?	A: An articulation, or joint, is the point where two or more bones meet, allowing for varying degrees of movement.
Q: What are the three major types of muscle tissue, and which is primarily responsible for voluntary movement?	A: Skeletal, cardiac, and smooth muscle; skeletal muscle controls voluntary movement.

Created by: user-1992616

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