IB Bio 1.1 Quiz

A photomicrograph of a tissue is accompanied by a scale bar which represents 1 µm. The scale bar is 10 mm long. What is the magnification of this photomicrograph?

• 10X
• 1,000X
• 10,000X
• 1,000,000X

Which ratio limits the size of cells?

• The rate of metabolism to mass
• The surface area to volume
• The mass to volume
• The volume to surface area

The width of a human hair is 0.1 mm. What is the width in μm?

• 10 μm
• 100 μm
• 1000 μm
• 10 000 μm

Which statement is part of the cell theory?

• Cells are composed of organic molecules
• ells have DNA as their genetic material
• Cells have cytoplasm surrounded by a membrane
• Cells come from pre-existing cells

A red blood cell is 8 μm in diameter. If drawn 100 times larger than its actual size, what diameter will the drawing be in mm?

• 0.08 mm
• 0.8 mm
• 8 mm
• 80 mm

Which functions are carried out by all unicellular organisms?

• growth, homeostasis, photosynthesis, response
• growth homeostasis, metabolism, response
• metabolism, photosynthesis, reproduction, response
• growth, nutrition, reproduction, ventilation

Tags

NGSS.HS-LS1-3