Chapter 6-7 CELLS, DIFFUSION, OSMOSIS , ACTIVE TRANSPORT

Which statement is correct about diffusion?

• It's very rapid over long distances.
• It's a passive process which molecules move from a region of higher to lower concentration.
• It requires an energy expenditure by the cell.
• It's an active process where molecules move from a region of lower to higher concentration.

Which of the following is major cause of the size limits for certain types of cells?

• evolutionary progression in cell size; more primitive cells have smaller sizes.
• the need for sufficient surface area to support the cell's metabolic needs.
• limitation on the strength and integrity of the plasma membrane as cell size increases
• the difference in plasma membranes between prokaryotes and eukaryotes

White blood cells engulf bacteria through what process?

• pinocytosis
• osmosis
• phagocytosis
• exocytosis

Large numbers of ribosomes are present in cells that specialize in producing which of the following molecules?

• glycogen
• cellulose
• proteins
• lipids

Tags

NGSS.HS-LS1-1

Which of the following cells would have the highest surface area to volume ratio?

• 1
• 2
• 3
• they are all the same

Tags

NGSS.MS-LS1-2

A protein that is destined for the membrane would be made 

• on a ribosome that is in the cytoplasm
• within a lysosome
• on a ribosome attached to the rough endoplasmic reticulum 
• within the Golgi body

If the water potential of a cell is higher than the surrounding solution. The water will ____.

• Move into the cell.

• Move equally in and out of the cell.

• Move out of the cell.

Tags

NGSS.HS-LS1-3

Which organelles modifies proteins and packages them into vesicles to be shipped out of the cell?

• free ribosomes
• rough ER
• smooth ER
• golgi apparatus

____________ & _________________ are organelles that definitely arose from endosymbiosis.

• Rough ER & Smooth ER
• Mitochondria & Flagellum
• Chloroplast & Mitochondria
• Chloroplast and Golgi apparatus

A protein that is destined for the membrane would be made 

• on a ribosome that is in the cytoplasm
• within a lysosome
• on a ribosome attached to the rough endoplasmic reticulum 
• within the Golgi body