Question 1
Which of the following statements about the cytoskeleton is false?
(a) The cytoskeleton is made up of three types of protein filament.
(b) The bacterial cytoskeleton is important for cell division and DNA segregation.
(c) Protein monomers that are held together with covalent bonds form cytoskeletal filaments.
(d) The cytoskeleton of a cell can change in response to the environment.
Question 2
Which of the following statements about the cytoskeleton is FALSE?
A) The cytoskeleton provides the characteristic shape and size to a cell.
B) The cytoskeleton functions in movement.
C) The cytoskeleton synthesizes proteins.
D) The cytoskeleton supports the plasma and nuclear membranes.
Question 3
Answer to question 1
The FALSE statement is (c) protein monomers that are held together with covalent bonds form cytoskeletal filaments
The cytoskeleton filaments are composed of proteins as their monomeric units. These monomers interact through hydrophobic interactions between them. They also form other bonds that are weak. These monomers do not interact through covalent bonds.
- Option (a) The cytoskeleton is made up of three types of protein filament is incorrect because there are three filaments in this structure the microfilament, microtubule, and intermediate filaments.
- Option (b) The bacterial cytoskeleton is important for cell division and DNA segregation is incorrect because bacteria contain a cytoskeleton that helps cells divide and separate DNA molecules.
- Option (d) The cytoskeleton of a cell that can change in response to the environment is incorrect because the filaments of the cytoskeleton have dynamic nature that changes based on the environment.
Answer to question 2
The statement about the cytoskeleton that is FALSE is C) The cytoskeleton synthesizes proteins.
The cytoskeleton is not involved in synthesizing cellular proteins. The ribosome is the organelle responsible for this task.
Answer to question 3
8 answer:
A. The cytoskeleton is a structure that protudes outside the cell body.
Because cytoskeleton is found within the cell , it doesn’t protude outside the cell ,it helps gives structural support , movement of organelles and movement of chromosomes during cell division