Tour of the Cell

All of the following are part of a prokaryotic cell EXCEPT ____

• a cell wall

• a plasma membrane

• ribosomes

• an endoplasmic reticulum

Which of the following is a major difference between prokaryotic cells and eukaryotic cells?

• Prokaryotes have cells while eukaryotes do not.

• Eukaryotic cells have more intracellular organelles than prokaryotes

• Prokaryotes are generally larger than eukaryotes.

• Only eukaryotes have genetic material

Which structure is common to plan and animal cells?

• chloroplast

• central vacuole

• mitochondrion

• centriole

What is the function of the nuclear pore complex found in eukaryotes?

• It regulates the movement of proteins and RNA's into and out of the nucleus

• It synthesizes the proteins required to copy DNA and make RNA

• It selectively transports molecules of the nucleus, but prevents al inbound molecules from entering the nucleus

• It assembles ribosomes from raw materials that are synthesized in the nucleus

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

• lipids

• glycogen

• proteins

• nucleic acids

Tags

NGSS.HS-LS1-1

The nuclear lamina is an array of microfilaments on the inner side of the nuclear membrane. If a method were found that could cause the lamina to fall into disarray, what would you most likely expect to be the immediate consequence.

• the loss of all nuclear function

• the inability of the nucleus to divide during cell division

• a change in the shape of the nucleus

• failure of chromosomes to carry genetic information

Answer explanation

I know we did not discuss the nuclear lamina, however the passage did tell you they are microfilaments and we did discuss the function of microfilaments

A cell with a predominance of free ribosomes (as opposed to attached ribosomes) is most likely_______

• primarily producing proteins for secretion out of the cell

• primarily producing proteins in the cytosol

• constructing an extensive cell wall or extracellular matrix

• enlarging its vacuole

Answer explanation

Recall that the Golgi body packages items in vesicles to export them from the cell

Which structure is NOT part of the endomembrane system?

• nuclear envelope

• chloroplast

• Golgi apparatus (body)

• plasma membrane

A cell with an extensive area of smooth endoplasmic reticulum is specialized to ________

• play a role in storage

• synthesize large quantities of lipids

• actively export protein molecules

• import and export protein molecules

Which structure is the site of the synthesis of proteins that may be exported from the cell?

• rough ER

• plasmodesmata

• Golgi vesicles

• free cytoplasmic ribosomes