Biology_Unit 1 Summative Assessment

All living organisms share specific characteristics that define life. Which of the following is a characteristic that all living organisms share?

• The ability to produce energy without the need for food

• The ability to metabolize, reproduce, and respond to stimuli

• The ability to survive without water or air

• The ability to remain unchanged over time

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Which is NOT a characteristic of life?

• Growth and development

• Response to stimuli

• Develop a Crystalline structure

• Reproduction

Why is reproduction important for the survival of polar bears?

• It allows polar bears to adapt to warmer climates.

• It ensures that polar bear populations are maintained despite harsh environmental conditions.

• It helps polar bears live longer lives in the wild.

• It enables polar bears to travel long distances across the Arctic.

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Why is metabolism essential for a shark?

• It helps the shark maintain a constant body temperature in cold water.

• It provides the energy the shark needs for swimming, hunting, and survival.

• It allows the shark to produce offspring in large numbers.

• It helps the shark regulate the amount of oxygen in its blood.

In terms of organization, cells combine to form:

• Molecules

• Tissues

• Organs

• Organisms

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Which is the correct order of organization from complex to simple?

• Organelles → cell → tissue → organ → organ system

• Tissue → cell → organelles → organ system → organ

• Organelles → organ → organ system → tissue → cell

• Organ systems → organ → tissue → cell → organelles

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A scientist is studying a single-celled organism, such as an amoeba, and how it carries out life processes. How does a single-celled organism like an amoeba perform life functions such as digestion and movement?

• It relies on specialized cells within its body to perform different functions.

• All life functions are carried out by the single cell through structures called organelles.

• It requires a complex nervous system to control its actions.

• It has a circulatory system that transports nutrients and waste.

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Which of the following is a key difference between prokaryotic and eukaryotic cells?

• Prokaryotic cells have a nucleus, while eukaryotic cells do not.

• Eukaryotic cells have membrane-bound organelles, while prokaryotic cells do not.

• Both prokaryotic and eukaryotic cells lack a cell membrane.

• Eukaryotic cells are always smaller than prokaryotic cells.

A biologist is observing two cells under a microscope, one from a plant and the other from an animal. CELL A has a rigid outer structure and a large central vacuole, while CELL B has a more flexible outer shape. Based on your knowledge, which cell is most likely a plant or animal cell?

• CELL A: Plant cell, CELL B: Plant Cell

• CELL A: Plant cell, CELL B: Animal Cell

• CELL A: Animal cell, CELL B: Plant Cell

• CELL A: Animal cell, CELL B: Animal Cell

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The nucleus of a cell:

• Produces proteins and controls what enters and leaves the cell

• Contains genetic material and controls cell activity

• Creates ATP and stores lipids

• Breaks down waste and transports proteins

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