Biology

This scientist is credited with seeing living bacteria in water.

• Scheiden

• Hooke

• von Leeuwenhoek

• Pasteur

Scientist usually credited with discovering the microscope.

• Schwann

• Hooke

• Schleiden

• Pasteur

Which answer correctly identifies the advantages of an electron microscope image and a light microscope image?

• color visible, movement visible

• high resolution, color visible

• color visible, high resolution

• movement visible, color visible

What was the magnification of Janssen's microscope?

• 40

• 25X

• 40X

• 27X

The purpose of the Human Genome Project was to develop and understanding of how a gene determines a human trait.

• True

• False

You would find a lot of mitochondria in a cell if it:

• stored a large amount of fat

• carried out a lot of active transport

• had a very permeable membrane

• synthesized proteins

Water molecules usually move between two isotonic environments.

• True

• False

When the concentration in a cell is greater inside than outside, it is hypertonic?

• True

• False

What is the process called when a cell engulfs a large particle?

• Phagocytosis

• Endocytosis

• Pinocytosis

• Exocytosis

On a sunny day, the gas exchange between a leaf and the atmosphere would involve O₂ leaving the leaf and CO₂ and H₂O coming into the leaf.

• True

• False