Biology STAAR Released Questions

The diagram below shows a fish being viewed from above the water.

The fish appears to be closer to the surface than it really is. What causes this difference?

• Light is reflected.

• Light is refracted.

• Light is focused.

• Light is blocked.

What is the powerhouse of the cell, responsible for producing energy?

• Nucleus

• Mitochondria

• Ribosome

• Endoplasmic Reticulum

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What is the primary function of the chloroplasts in plant cells?

• To break down sugar molecules to release energy

• To store water and nutrients

• To capture light energy and convert it into chemical energy

• To control the entry and exit of substances in and out of the cell

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What is the process by which plants release water vapor into the air through their leaves?

• Condensation

• Transpiration

• Evaporation

• Precipitation

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What is the process by which plants make their food using sunlight called?

• Respiration

• Photosynthesis

• Fermentation

• Digestion

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

• Cell

• Tissue

• Organ

• Organ System

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Which organelle is responsible for photosynthesis in plants?

• Mitochondria

• Chloroplast

• Nucleus

• Ribosome

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What is the genetic material found in the nucleus of a cell?

• RNA

• DNA

• Protein

• Lipid

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Which process involves the division of a cell's nucleus into two genetically identical nuclei?

• Meiosis

• Mitosis

• Binary Fission

• Budding

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What is the role of ribosomes in a cell?

• Energy production

• Protein synthesis

• Lipid storage

• DNA replication

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