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Chapter 4: Q.23 (page 125)

The key components of desmosomes are cadherins and__________.

a. actin

b. microfilaments

c. intermediate filaments

d. microtubules

Short Answer

Expert verified

The key components of desmosomes are cadherins and intermediate filaments.

Step by step solution

01

Explanation

Actin is an intracellular protein that aids in cell contraction as well as cell shape and structure regulation. So, option a is incorrect.

Microfilaments are made up of a protein named actin which helps in cell movement. Hence, option b is wrong as well.

They are the major component of the cytoskeleton which helps in cell movement, growth, and signaling. Option d is incorrect.

Desmosomes are made up of a network of cadherin proteins, linker proteins, and keratin intermediate filaments known as desmosome-intermediate filament complexes (DIFC). Thus, option c is correct.

02

Conclusion

Desmosomes are made up of cadherins and intermediate filaments which helps in organizing the internal structure of the cell.

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Most popular questions from this chapter

Antibiotics are medicines that are used to fight bacterial infections. These medicines kill prokaryotic cells without harming human cells. What part or parts of the bacterial cell do you think antibiotics target? Why?

In what situation(s) would the use of a scanning electron microscope be ideal, and why?

Which of the following sequences correctly lists in order the steps involved in the incorporation of a proteinaceous molecule within a cell?

a. protein synthesis of the protein on the ribosome; modification in the Golgi apparatus; packaging in the endoplasmic reticulum; tagging in the vesicle

b. synthesis of the protein on the lysosome; tagging in the Golgi; packaging in the vesicle; distribution in the endoplasmic reticulum

c. synthesis of the protein on the ribosome; modification in the endoplasmic reticulum; tagging in the Golgi; distribution via the vesicle

d. synthesis of the protein on the lysosome; packaging in the vesicle; distribution via the Golgi; tagging in the endoplasmic reticulum

Bacteria that lack fimbriae are less likely to ________.

a. adhere to cell surfaces

b. swim through bodily fluids

c. synthesize proteins

d. retain the ability to divide

The ________ is the basic unit of life.

a. organism

b. cell

c. tissue

d. organ
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