Type:
Test Bank
Resource:
Cell and Molecular Biology Concepts and Experiments
Edition:
6th Edition
Author(s):
Gerad Karp
Karp 6e
Chapter 01: Introduction to the Study of Cell and Molecular Biology
1. TB 1.001 Who was the first person to describe living single cells? A) Leeuwenhoek B) Hooke C) Schleiden D) Schwann E) Virchow Ans: A Difficulty: Easy 1.1 2. TB 1.002 The first compound light microscopes were constructed by the end of the sixteenth century. What is a compound microscope? A) It has a moveable stage. B) It has two lenses. C) Its lens is double the size of the original microscopes. D) The lens has two different colors. E) They have two different light sources. Ans: B Difficulty: Easy 1.1 3. TB 1.003 Which of the following is a tenet of the Cell Theory? 1) All organisms are composed of one or more cells. 2) The cell is the structural unit of life. 3) Cells can arise only by division from a preexisting cell. 4) Cells divide only by fission. A) 1 B) 2 C) 3 D) 4 E) 1, 2 and 3 Ans: E Difficulty: Medium 1.1
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Karp 6e
Chapter 01: Introduction to the Study of Cell and Molecular Biology
4. TB 1.004 Who is generally credited with the discovery of cells? A) Leeuwenhoek B) Hooke C) Schleiden D) Schwann E) Virchow Ans: B Difficulty: Easy 1.1 5. TB 1.005 Despite being correct about the first two tenets of the Cell Theory, Schleiden and Schwann made an error about another central feature of cells. What was their error? A) They stated that all cells were smaller than 2 µ in diameter. B) They claimed that all cells were exactly the same in every detail. C) They stated that all cells were immortal. D) They both agreed that cells could arise from noncellular materials. E) They claimed that all cells had nuclei through their entire existence. Ans: D Difficulty: Medium 1.1 6. TB 1.006 Which of the following characteristics is(are) not a basic property of cells? A) Cells carry out a variety of emotional reactions. B) Cells engage in numerous mechanical activities. C) Cells generally respond to stimuli. D) Cells are capable of self-regulation. E) Cells evolve. Ans: A Difficulty: Easy 1.2 7. TB 1.007 Which of the following characteristics is(are) a basic property of cells? A) Cells are highly complex and organized. B) Cells possess a genetic program and the means to use it. C) Cells are capable of producing more of themselves. D) Cells acquire and utilize energy. E) All of these are correct. Ans: E Difficulty: Easy 1.2
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Karp 6e
Chapter 01: Introduction to the Study of Cell and Molecular Biology
8. TB 1.008 The first culture of human cells was begun by George and Martha Gey of Johns Hopkins University in 1951. The cells were obtained from a malignant tumor and named ______ cells after the donor, _________. A) HeLa, Herbert Lane B) HeLa, Henrietta Lacks C) Roberts, John Roberts D) MaLe, Martin Lewis E) HeLa, Helen Lassiter Ans: B Difficulty: Medium 1.2 9. TB 1.009 Cells grown in culture, outside the body are called ________ cells. They have become an essential tool of cell and molecular biologists. A) in vivo B) live C) in vitro D) in culturo E) vivacious Ans: C Difficulty: Medium 1.2 10. TB 1.010 A high powered microscope that allows investigators to examine the detailed surfaces of cells is called a ___________. A) scanning electron microscope B) transmission electron microscope C) fluorescence microscope D) scanning tunneling microscope E) confocal laser scanning microscope Ans: A Difficulty: Easy 1.2
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Karp 6e
Chapter 01: Introduction to the Study of Cell and Molecular Biology
11. TB 1.011 A ______________ is used to reveal the detailed internal structure of cells. A) scanning electron microscope B) transmission electron microscope C) fluorescence microscope D) scanning tunneling microscope E) confocal laser scanning microscope Ans: B Difficulty: Easy 1.2 12. TB 1.012 The apical ends of intestinal cells face the intestinal channel and have long processes that facilitate the absorption of nutrients. What is the name of these processes and what cytoskeletal element forms their internal skeleton? A) microvilli, microtubules B) villi, microtubules C) microvilli, actin filaments D) villi, actin filaments E) microvilli, intermediate filaments Ans: C Difficulty: Medium 1.2 13. TB 1.013 Virtually all chemical changes that take place in cells require ________, molecules that greatly increase the rate at which a chemical reaction occurs. A) DNAs B) carbohydrates C) proteins D) enzymes E) emzymes Ans: D Difficulty: Easy 1.2
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Karp 6e
Chapter 01: Introduction to the Study of Cell and Molecular Biology
14. TB 1.014 You are conducting an experiment by trying to reproduce the work performed in 1891 by Hans Driesch, a German embryologist. You are working with a fertilized sea urchin egg and allow it to complete the first cell division after fertilization. You then carefully separate the two cells of the embryo and allow their development to continue. Based on Driesch's experiment, which result below would you expect to happen? A) Both of the cells will die. B) Both cells develop into complete and normal embryos that are somewhat smaller. C) One cell develops into a normal, though smaller, embryo; the other dies. D) One cell develops into half an embryo; the other develops into the other half of the embryo. E) One cell develops into a defective embryo and the other dies. Ans: B Difficulty: Difficult 1.2 15. TB 1.015 What factor or factors discovered with electron microscopy distinguished prokaryotic from eukaryotic cells? 1) their size 2) their color 3) the types of their internal structures or organelles 4) their fragility A) 1 B) 2 C) 3 D) 4 E) 1 and 3 Ans: E Difficulty: Medium 1.3 16. TB 1.016 What characteristics distinguish prokaryotic and eukaryotic cells? A) Eukaryotes have membrane-bound organelles; prokaryotes do not. B) Prokaryotes have relatively little DNA; eukaryotes generally have much more. C) Eukaryotic chromosomes are linear; prokaryotic chromosomes are circular. D) Prokaryotic DNA is naked or nearly naked; eukaryotic DNA is usually heavily associated with protein. E) All of these are correct. Ans: E Difficulty: Medium 1.3
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Karp 6e
Chapter 01: Introduction to the Study of Cell and Molecular Biology
17. TB 1.017 Which of the following are not considered to belong to the Archaea? A) Methanogens B) Halophiles C) Acidophiles D) Thermophiles E) Eubacteria Ans: E Difficulty: Easy 1.3 18. TB 1.018 Which of the following are considered to be eukaryotes? A) amoebae B) yeast C) holly D) starfish E) All of these are correct. Ans: E Difficulty: Medium 1.3 19. TB 1.019 The genetic material of a prokaryotic cell is present in a _________, a poorly demarcated region of the cell that lacks a boundary membrane to separate it from the surrounding cytoplasm. A) nucleus B) chromatic region C) nucleoid D) pharmacopeia E) genetome Ans: C Difficulty: Easy 1.3 20. TB 1.020 Bacteria will often pass a piece of DNA from a donor bacterial cell to a recipient bacterial cell presumably through a structure called a pilus. What is this process called? A) confirmation B) transduction C) transformation D) conjugation E) fission Ans: D Difficulty: Easy 1.3
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