Cell: The Unit of Life

Topics in this chapter

• Cell Theory and Cell Types
• Prokaryotic Structures and Inclusions
• Endomembrane System and Vacuoles
• Plasma Membrane and Transport
• Mitochondria and Chloroplasts
• Chromosomes and Cell Division
• Cytoskeleton and Cell Surface Structures

Cheat sheet

Practice questions

1. Question 1Q-DDEF83

   Which of the following scientists formulated the cell hypothesis, but this hypothesis did not explain how new cells were formed?

   1. A.Rudolf Virchow
   2. B.Matthias Schleiden and Theodor Schwann
   3. C.Antonie van Leeuwenhoek
   4. D.Robert Hooke
   See the answer and solution
2. Question 2Q-BB4C06

   In plant cells, the vacuole is bound by a membrane known as:

   1. A.Tonoplast
   2. B.Plasmalemma
   3. C.Periplast
   4. D.Cytoplast
   See the answer and solution
3. Question 3Q-EC28D6

   The select permeability of the plasma membrane is primarily due to which of its components?

   1. A.Extrinsic proteins
   2. B.Lipid bilayer
   3. C.Polysaccharide coat
   4. D.Nucleic acids
   See the answer and solution
4. Question 4Q-51FFAE

   Which of the following structures is NOT a part of the endomembrane system?

   1. A.Endoplasmic reticulum
   2. B.Golgi apparatus
   3. C.Peroxisome
   4. D.Lysosome
   See the answer and solution
5. Question 5Q-157799

   The arrangement of axonemal microtubules in a eukaryotic flagellum or cilium is typically described as:

   1. A.9 + 0 array
   2. B.9 + 2 array
   3. C.2 + 9 array
   4. D.9 + 1 array
   See the answer and solution