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Important MCQs In Cell Biology | Ch. Cellular Organization

 

1. Cells were first studied scientifically by

a. Robert Hooke                                                        b. Robert Koch

c. Charles Darwin                                                      d. Gregor Mendel

2. The first experiments in using microscopy were performed by

a. Robert Hooke                                                        b. Van Leeuwenhoek

c. Charles Darwin                                                      d. Gregor Mendel

3. The cell theory was proposed by

a. Schleiden and Leeuwenhoek                             b. Robert Koch

c. Schleiden and Schwann                                      d. Metchnikoff

4. The size range of viruses is

a. 1-2 µm                                                                   b. 5-10 µm

c. 50-100 nm                                                            d. 20 µm

5. The size range of most prokaryotes is

a. 1-2 µm                                                                  b. 5-10 µm

c. 50-100 nm                                                           d. 20 µm

6. The size range of most eukaryotic cells is

a. 1-2 µm                                                                 b. 5-100 µm

c. 50-100 nm                                                          d. 20 µm

7. Usually, the largest organelle of an eukaryotic cell is

a. Mitochondria                                                    b. Golgi apparatus

c. Nucleus                                                              d. Ribosome

8. The theory that explains the evolution of eukaryotes from prokaryotes is

a. Endosymbiotic theory                                     b. Recapitulation theory

c. Cell theory                                                         d. Ectosymbiotic theory

9. The cells that cover the outer and internal surfaces of organs form

a. Epithelia                                                            b. Cilia

c. Villi                                                                     d. Microvilli

10. The epithelial cells that are taller than they are broad are called

a. Squamous                                                        b. Columnar

c. Striated                                                           d. Cuboid

11. The epithelial cells that are flat are called

a. Squamous                                                     b. Columnar

c. Striated                                                         d. Cuboid

12. The absorptive functions of cells is enhanced by the presence of

a. Pores                                                            b. Desmosomes

c. Microvilli                                                      d. Channels

13. The extracellular fibrous supporting layer for the epithelial cells is known as the

a. Plasma membrane                                     b. Basement membrane

c. Cementing membrane                               d. Basal epithelium

14. Cilia are mostly seen on the surface of

a. Skeletal muscle cells                                  b. Epithelial cells

c. Myogenic cells                                            d. Lumen cells

15. Stratified epithelium is mostly present at

a. Trachea                                                        b. Intestinal lumen

c. Skin                                                               d. Connective tissue

16. Connective tissue does not include

a. Bone                                                             b. Cartilage

c. Skin                                                               d. Adipose tissue

17. Cells with amorphous ground substance with fibers and a large extracellular matrix is a feature of

a. Epithelial tissue                                         b. Nervous tissue

c. Connective tissue                                      d. Muscles

18. The most abundant fiber type in the connective tissue is

a. Fibrinogen                                                 b. Collagen

c. Fibrin                                                          d. Actin

19. The cell type in connective tissue that secrete the ground substance and fibers are

a. Macrophages                                           b. Glial cells

c. Goblet cells                                              d. Fibroblasts

20. The muscle cell type that contract slowly are

a. Smooth                                                     b. Striated

c. Cardiac                                                     d. Skeletal


ANSWERS TO MCQs

1. a

2. b

3. c

4. c

5. a

6. b

7. c

8. a

9. a

10. b

11. a

12. c

13. b

14. b

15. c

16. c

17. c

18. b

19. d

20. a


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