Cell Structure and Function

The cell theory states that the cell is the most basic unit of life, all organisms are made of cells, and all cells come from cells. What makes the cell theory a scientific theory?

• It is based on a scientific publication that is read by scientists worldwide.
• It is based on the work of many scientists and leads to accurate predictions.
• It is based on ideas that have been proven true and that are not subject to revision.
• It is based on preliminary evidence but sill needs to be confirmed with experiments.

Which of the following pairs INCORRECTLY matches a cell structure with its function?

• cell membrane: protein synthesis
• nucleus: information (DNA) storage
• vacuole: storage
• chloroplast: energy conversion

Tags

NGSS.MS-LS1-2

Some viruses attack cells by inserting their own DNA into the host cell's DNA. Why might it be simpler for these viruses to attack prokaryotic cells than eukaryotic cells?

• prokaryotic cells have less DNA than do eukaryotic cells.
• Unlike eukaryotic cells, prokaryotic cells do not have a nucleus.
• The cell wall in prokaryotic cells is a less effective barrier.
• The rapid growth of prokaryotic cells generates more viruses.

Which of the following is a function of the Golgi apparatus?

• storing genetic information
• recycling waste products of the cell
• providing a protective barrier
• processing and storing proteins

The graph shows the number of mitochondria in breast muscles of different birds. Which statement best explains these data?

• The number of mitochondria in chickens would be higher if they could fly.
• The chicken breast muscle requires the greatest amount of energy per cell.
• The energy requirement of pigeon breast muscle is low.
• Duck breast muscle require the least amount of energy.

Tags

NGSS.HS-LS2-3

____ is the ability of a cell to regulate itself and maintain an internal ____ or equilibrium. 

• Homeostasis, level
• Equilibrium, level
• Homeostasis, balance
• Equilibrium, balance

Tags

NGSS.HS-LS1-3

Basic structure of a virus includes a capsid, ___, envelope, and ______.

• receptors, nucleic acids
• protein coat, DNA or RNA
• capsule, nuclear membranes
• attachment, cell membranes

Viruses reproduce by taking over normal healthy cells and ____ their nucleic acid into the cell. 

• rejecting
• attaching
• injecting
• projecting

What is the role of the cell membrane?

• Create ATP
• Create protiens
• Regulate temperature
• Regulate the transport of in and out

Tags

NGSS.MS-LS1-2

What is another name for cell membrane?

• Great Wall of China
• Berlin Wall
• Plasma Membrane
• Cell Wall