Eukaryotic Organelles (Part I)

Which of these are functions of the cytoskeleton?

• It helps to maintain cell shape.

• It provides a place for chemical reactions to occur.

• It plays important roles in both the intracellular movement of substances and in cell division.

• It holds organelles in place, and for some cells, it enables cell movement.

• It creates new proteins, lipids, and other organic molecules

Which of these are cytoskeleton fibers?

• microtubules

• intermediate filaments

• microfilaments

• cytoplasm

• microflagella

Tags

NGSS.MS-LS1-2

Cytosol is a watery, gel-like material that makes up much of the cytoplasm.

• true

• false

Tags

NGSS.MS-LS1-2

These are hollow cylinders and are the thickest of the cytoskeleton structures and most commonly made of filaments which are polymers of tubulin.

• microtubles

• intermeadiate filaments

• microfilaments

• cytoplasm

These are made of two thin actin chains that are twisted around one another. They are found in almost every cell, and are numerous in muscle cells and in cells that move by changing shape

• microtubles

• intermeadiate filaments

• microfilaments

• cytoplasm

Plants and animal cells are examples of ___ cells

• prokaryotic cells

• eukaryotic cells

• both eukaryotic and prokaryotic

• neither

Prokaryotes do NOT have....

• membrane bound organelles

• DNA or RNA

• Cell membrane

• Life

Bacteria are considered what?

• Eukaryotes

• Prokaryotes

Which of the following is NOT a characteristic of a Prokaryotic cell?

• unicellular

• floating DNA

• very small

• complex

Which of the following statements accurately represents the differences in plant and animal cells?

• Only plant cells have a cell wall, chloroplasts, and a large vacuole.

• Only animal cells have a cell wall, chloroplasts, and a large vacuole

• Only plant cells have a cell membrane, mitochondria, and cytoplasm

• Only animal cells have a cell membrane, mitochondria, and cytoplasm