WELL DETAILED ANSWERS|LATEST
1) Who was the first person to describe living single cells?
a) Leeuwenhoek
b) Hooke
c) Schleiden
d) Schwann
e) Virchow - ANSWER a) Leeuwenhoek
2) 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. - ANSWER e) They have two different light
sources.
3) 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.
1
,a) 1
b) 2
c) 3
d) 4
e) 1, 2 and 3 - ANSWER e) 1, 2 and 3
4) Who is generally credited with the discovery of cells?
a) Leeuwenhoek
b) Hooke
c) Schleiden
d) Schwann
e) Virchow - ANSWER b) Hooke
5) 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. - ANSWER d)
They both agreed that cells could arise from noncellular materials.
6) 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.
2
,e) Cells evolve. - ANSWER a) Cells carry out a variety of emotional reactions.
7) 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. - ANSWER e) All of these are correct.
8) 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 - ANSWER b) HeLa, Henrietta Lacks
9) 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 - ANSWER c) in vitro
3
, 10) 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 - ANSWER a) scanning electron microscope
11) 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 - ANSWER b) transmission electron microscope
12) 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 - ANSWER c) microvilli, actin filaments
13) Virtually all chemical changes that take place in cells require ________, molecules that
4
1) Who was the first person to describe living single cells?
a) Leeuwenhoek
b) Hooke
c) Schleiden
d) Schwann
e) Virchow - ANSWER a) Leeuwenhoek
2) 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. - ANSWER e) They have two different light
sources.
3) 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.
1
,a) 1
b) 2
c) 3
d) 4
e) 1, 2 and 3 - ANSWER e) 1, 2 and 3
4) Who is generally credited with the discovery of cells?
a) Leeuwenhoek
b) Hooke
c) Schleiden
d) Schwann
e) Virchow - ANSWER b) Hooke
5) 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. - ANSWER d)
They both agreed that cells could arise from noncellular materials.
6) 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.
2
,e) Cells evolve. - ANSWER a) Cells carry out a variety of emotional reactions.
7) 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. - ANSWER e) All of these are correct.
8) 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 - ANSWER b) HeLa, Henrietta Lacks
9) 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 - ANSWER c) in vitro
3
, 10) 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 - ANSWER a) scanning electron microscope
11) 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 - ANSWER b) transmission electron microscope
12) 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 - ANSWER c) microvilli, actin filaments
13) Virtually all chemical changes that take place in cells require ________, molecules that
4
