Body Systems Unit Review

Front

What is the function of mitochondria in muscle cells?

Back

Mitochondria produce energy (ATP) through cellular respiration, which is essential for muscle contraction and movement.

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Front

What is an example of a chemical change that occurs during digestion?

Back

Enzymes breaking down food into simpler molecules.

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Front

What are tissues in multicellular organisms?

Back

Groups of cells that work together to perform a specific function.

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Front

What type of change occurs when food is converted into substances the body can use during digestion?

Back

Chemical change.

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Front

What are sensory neurons?

Back

Neurons that carry incoming information from sensory receptors to the brain and spinal cord.

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Front

What is the role of enzymes in the digestive system?

Back

Enzymes facilitate chemical changes by breaking down food into absorbable nutrients.

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Front

How do muscle cells differ from other cell types in terms of energy needs?

Back

Muscle cells require more energy due to their role in movement, leading to a higher number of mitochondria.

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Front

What is the difference between physical and chemical changes in the context of digestion?

Back

Physical changes involve the mechanical breakdown of food, while chemical changes involve the transformation of food into new substances.

Front

What are the four main types of tissues in the human body?

Back

Epithelial, connective, muscle, and nervous tissues.

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Front

How do neurons communicate information in the body?

Back

Neurons transmit electrical signals to communicate information between the brain, spinal cord, and other body parts.

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