VA SOL BIO REVIEW #2

A cell with numerous ribosomes is probably specialized for...

• enzyme storage
• energy production
• cell division
• protein synthesis

An important difference between viruses and living cells is that viruses...

• cannot reproduce outside of cells
• contain more nuclei than cells
• cannot mutate but cells can
• need an energy source but cells do not

Which of the following came first in the scientific study of living things

• light microscope
• cell theory
• electron microscope
• model of DNA

Which pair of structures best shows that plant cells have functions different from animal cells?

• chloroplast and mitochondria
• chloroplast and cell walls
• nuclei and centrioles
• ribosomes and cell membranes

Tags

NGSS.HS-LS1-5

Which of the following organisms are prokaryotes?

• plants
• animals
• bacteria
• fungi

Tags

NGSS.MS-LS4-2

The cell membrane contains channels and pumps which help move materials from one side of the membrane to the other.  What are these channels and pumps made of?

• proteins
• carbohydrates
• lipids
• sugars

The German physician Robert Koch provided evidence to support the germ theory of infectious disease.  Koch isolated bacteria from a cow with the disease anthrax, and then injected the bacteria into a healthy mouse.  To support the germ theory, what must have happened to the healthy mouse?

• It became sick
• It spread smallpox
• it produced antibiotics
• it became immune to viral infections

A structure that allows some single-celled organisms to move toward or away frmo objects is the...

• cell wall
• cell membrane
• flagellum
• cytoplasm

A cell membrane allows some substances to pass through it while other substances cannot.  Thus a cell membrane is considered to be...

• impermeable
• osmotic
• homeostatic
• selectively permeable

Sodium ions cross a membrane through transport proteins that require an energy boost.  This is an example of...

• passive transport
• active transport
• osmosis
• facilitated diffusion