Unit 2 Vocabulary

What is a well-tested explanation for how something works in science, supported by lots of evidence?

• Hypothesis

• Theory

• Law

• Observation

What is the basic unit of life, found in all living organisms?

• Atom

• Molecule

• Cell

• Tissue

Tags

NGSS.MS-LS1-1

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What is the idea that all living things are made of cells, cells are the basic units of life, and all cells come from other cells?

• Cell Theory

• Evolution

• Genetics

• Photosynthesis

Tags

NGSS.MS-LS1-1

What are organelles in cells that produce energy from food, often called the "powerhouse" of the cell?

• Chloroplasts

• Ribosomes

• Mitochondria

• Nucleus

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NGSS.MS-LS1-2

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Which of the following is NOT a characteristic of a scientific law?

• It is a description of a pattern in nature.

• It is always true under specific conditions.

• It is a well-tested explanation.

• It is supported by evidence.

Which of the following is an example of an organ system?

• Mitochondria

• Circulatory system

• Chloroplasts

• Cell membrane

Which process is essential for maintaining a stable internal environment in organisms?

• Digestion

• Homeostasis

• Photosynthesis

• Excretion

What is the function of the nucleus in a cell?

• It stores nutrients and waste products.

• It controls what enters and leaves the cell.

• It contains genetic material and regulates cell activities.

• It provides structure and support to the cell.

Tags

NGSS.MS-LS1-2

What is the function of the cell wall in plant cells?

• To control cell activities

• To store nutrients

• To provide structure, support, and protection

• To suspend organelles

Tags

NGSS.MS-LS1-2

Which of the following is a tiny structure within cells that performs specific functions?

• Cell Wall

• Organelle

• Cytoplasm

• Vacuole

Tags

NGSS.MS-LS1-2