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3.1   Multiple Choice Questions 1) Each of the following statements a

Question : 3.1   Multiple Choice Questions 1) Each of the following statements a : 1402884

 

3.1   Multiple Choice Questions

 

1) Each of the following statements is a basic principle of the cell doctrine EXCEPT which one of the following?

A) All cells have a nucleus and organelles.

B) All living things are composed of cells and cell products.

C) A single cell is the smallest unit that exhibits all of the characteristics of life.

D) All cells come from preexisting cells.

 

2) Most eukaryotic cells have a membrane-bound ________ that contains the genetic material.

A) nucleus

B) cytoplasm

C) lysosome

D) plasma membrane

E) cell wall

 

3) Which one of the following structures is characteristic of BOTH eukaryotic and prokaryotic cells?

A) nucleus

B) mitochondria

C) endoplasmic reticulum

D) cell membrane

E) Golgi apparatus

 

4) Nearly every eukaryotic cell

A) has its genetic material concentrated in a membrane-enclosed nucleus

B) has a cell wall composed of cellulose that serves as the outer boundary of the cell

C) contains a hard, noncompressible fluid called the cytosol

D) possesses flagella and cilia, unlike prokaryotes

E) contains all of its genetic material in mitochondria

5) In which one of the following ways do prokaryotic cells differ from eukaryotic cells?

A) Prokaryotic cells have a plasma membrane composed entirely of protein.

B) Prokaryotic cells lack a membrane-bound nucleus and other membranous organelles.

C) Prokaryotic cells lack DNA, RNA, and ribosomes.

D) Prokaryotic cells have cytoplasm that is bounded by a cell membrane.

E) Prokaryotic cells have cytoplasm, but lack a cell membrane.

 

6) Over the course of evolutionary time, animal body sizes have gotten larger, yet cell sizes have not. Cells have stayed proportionally the same size to remain efficient, because

A) if cells got larger, the demand for energy and raw materials would greatly decrease

B) larger cells would become limited by the ability to move materials across the plasma membrane

C) of limitations of the composition of the plasma membrane

D) of the inability of the nucleus to produce sufficient DNA for larger cells

E) the Golgi apparatus would not be able to meet the demands of cell transport of larger cells

 

7) There are different types of microscopes that can be used to provide information about cells. Which type of microscope is used for the observation of living cells?

A) light microscope

B) scanning electron microscope

C) transmission electron microscope

 

8) Which type of microscope provides tremendous (100,000-fold) magnification and enables viewing of fine internal structural details of cells?

A) light microscope

B) scanning electron microscope

C) transmission electron microscope

9) Which one of the following statements CORRECTLY describes the architecture of a plasma membrane?

A) Proteins line the internal, cytoplasmic surface, and phospholipids cover the external surface.

B) Proteins, phospholipids, and cholesterol are joined by strong covalent bonds that give the membrane strength.

C) Phospholipids line the internal cytoplasmic surface, and proteins cover the external surface, sandwiching cholesterol in the middle.

D) Proteins and cholesterol are embedded in the phospholipid bilayer, forming a fluid mosaic.

 

10) Which plasma membrane component provides mechanical strength and maintains the correct amount balance of rigidity and flexibility?

A) cholesterol

B) phospholipids

C) protein

D) triglycerides

E) carbohydrates

 

 

 

Solution
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Biology 1 Year Ago 32 Views
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