AP Biology Unit 8

What type of growth is shown in the diagram?

• exponential growth

• logistic growth

• predator-prey cycle

• boom-bust curve

What is the carrying capacity for this sheep population?

• 2.0 million

• 1.0 million

• 1.6 million

• 0.5 million

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When a population grows past the ecosystem's carrying capacity, what most likley happens to the population?

• Continues to grow

• The population starts to die off to return to carrying capcity

• The population will go completely extinct due to lack of resources

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Which of the following best explains why there are seldom more than five trophic levels in a food chain?

• Most carnivores function at more than one trophic level

• Trophic levels about this numbers contain too many individuals

• Energy is lost from each trophic level

• The ecosystem contains too much biomass

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Compare and contrast the functions of the smooth and rough endoplasmic reticulum.

• Both synthesize proteins; the rough ER also detoxifies chemicals.

• The smooth ER synthesizes lipids; the rough ER synthesizes proteins.

• Both store calcium ions; the smooth ER also synthesizes proteins.

• The rough ER detoxifies chemicals; the smooth ER stores genetic material.

How does the structure of the cytoskeleton contribute to its function in the cell?

• Its rigid structure provides a fixed shape to the cell.

• Its dynamic nature allows for cell movement and stability.

• Its solid form prevents the cell from collapsing.

• Its impermeable nature protects the cell from external substances.

Explain how the structure of the cell membrane contributes to its function.

• The rigid structure provides support and protection.

• The fluid mosaic model allows selective permeability.

• The thick layer prevents all substances from entering.

• The solid structure allows for easy transport of materials.

A cell is observed to have a large number of lysosomes. What might this indicate about the cell's function?

• It is involved in energy production.

• It is involved in protein synthesis.

• It is involved in waste processing and recycling.

• It is involved in lipid storage.

Which organelle is responsible for modifying, sorting, and packaging proteins for secretion?

• Ribosome

• Golgi apparatus

• Endoplasmic reticulum

• Lysosome

What is the primary function of the mitochondria in eukaryotic cells?

• Photosynthesis

• Protein synthesis

• Energy production

• Lipid storage

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