7203425
Descripción
Test por Jack Alkema, actualizado hace más de 1 año
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Creado por Jack Alkema
hace casi 8 años
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Pregunta 1
Pregunta
As a cell becomes larger, its
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surface area increases faster than its volume
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surface area stays the same, but its volume increases
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volume increases faster than its surface area
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volume increases, but its surface area stays the same
Pregunta 2
Pregunta
If the surface area of a cell that is shaped like a cube increases 100 times, its volume increases about
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1000 times
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10 times
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5 times
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100 times
Pregunta 3
Pregunta
All of the following are problems that growth causes for cells EXCEPT
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more demands on DNA
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expelling wastes
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excess oxygen
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obtaining enough food
Pregunta 4
Pregunta
Compared to small cells, large cells have more trouble
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dividing
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moving needed materials and waste products out
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producing daughter cells
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storing needed materials and waste products
Pregunta 5
Pregunta
After cell division, each daughter cell has
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a lower surface area/volume ratio than the parent cell
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a higher surface area/volume ratio than the parent cell
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less DNA in its nucleus than the parent cell
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more DNA in its nucleus than the parent cell
Pregunta 6
Pregunta
A multicellular organism begins life as a single cell—a fertilized egg with a complete set of chromosomes. The picture in Figure 10–2 above shows how the cell divides to become two cells, then four cells, eight cells, and so on. Which of the following statements best describes what happens during this process?
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Chromosomes are divided evenly during cell division so that each new daughter cell has an equal share of the original set.
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Chromosomes are randomly distributed during cell division so that some new cells have partial sets while others have complete sets.
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Chromosomes are duplicated before cell division so that each new daughter cell has a complete set.
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Chromosomes are stored in the original cell to direct the division of all daughter cells, which do not have their own chromosomes.
Pregunta 7
Pregunta
Which pair includes a phase of the cell cycle and a cellular process that occurs during that phase?
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M phase, cell growth
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G1 phase, DNA replication
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S phase, cell division
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G2 phase, preparation for mitosis
Pregunta 8
Pregunta
When during the cell cycle is a cell’s DNA replicated?
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S phase
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G1 phase
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M phase
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G2 phase
Pregunta 9
Pregunta
In Figure 10–4, what role does structure A play in mitosis?
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dissolve nuclear envelope
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increase cell volume
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replicate DNA
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connect to spindle fibers
Pregunta 10
Pregunta
The structure labeled A in Figure 10–5 is called the
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spindle
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centriole
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centromere
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sister chromatid
Pregunta 11
Pregunta
The structures labeled B in Figure 10–5 are called
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sister chromatids
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centromeres
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spindles
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centrioles
Pregunta 12
Pregunta
During which phase(s) of mitosis are structures like the one shown in Figure 10–5 visible?
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prophase, metaphase, and anaphase
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metaphase only
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anaphase only
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anaphase and interphase
Pregunta 13
Pregunta
One difference between cell division in plant cells and in animal cells is that plant cells have
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chromatin
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a cell plate
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centromeres
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centrioles
Pregunta 14
Pregunta
The process by which a cell divides into two daughter cells is called
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mitosis
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metaphase
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cell division
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interphase
Pregunta 15
Pregunta
An advantage of sexual reproduction over asexual reproduction is that sexual reproduction
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requires more time
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takes less time
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produces identical offspring
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provides genetic diversity
Pregunta 16
Pregunta
Which of the following is a correct statement about the events of the cell cycle?
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DNA replicates during cytokinesis.
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The M phase is usually the longest phase.
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Interphase consists of the G1, S, and G2 phases.
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Little happens during the G1 and G2 phases.
Pregunta 17
Pregunta
Cell division is represented in Figure 10–3 by the letter
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A
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B
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C
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D
Pregunta 18
Pregunta
First phase of mitosis is called
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Metaphase
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Prophase
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Anaphase
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Telophase
Pregunta 19
Pregunta
During which phase of mitosis do the chromosomes line up along the middle of the dividing cell?
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Metaphase
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Prophase
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Anaphase
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Telophase
Pregunta 20
Pregunta
Which of the following represents the phases of mitosis in their proper sequence?
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prophase, metaphase, anaphase, telophase
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interphase, prophase, metaphase, anaphase, telophase
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prophase, anaphase, metaphase, telophase
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interphase, prophase, metaphase, telophase
Pregunta 21
Pregunta
What is the role of the spindle fibers during mitosis?
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They duplicate the DNA.
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They make the chromosomes visible.
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They break down the nuclear membrane.
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They help separate the chromosomes.
Pregunta 22
Pregunta
The two main stages of cell division are called
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mitosis and cytokinesis.
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synthesis and cytokinesis.
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the M phase and the S phase.
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mitosis and interphase.
Pregunta 23
Pregunta
During normal mitotic cell division, a parent cell that has four chromosomes will produce two daughter cells, each containing
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16 chromosomes
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8 chromosomes
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4 chromosomes
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2 chromosomes
Pregunta 24
Pregunta
Which of the following explains why body cells would undergo mitotic cell division?
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double chromosome number
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reproduction and apoptosis
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cut chromosome number in half
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growth and repair
Pregunta 25
Pregunta
The structure shown in Figure 10–5 is a replicated chromosome.
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- True
- False
Pregunta 26
Pregunta
The smaller a cell is, the more difficult it is for the cell to move enough nutrients and wastes across its cell membrane to maintain its normal functions.
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- True
- False
Pregunta 27
Pregunta
In eukarotes, the spindle breaks down during prophase and re-forms during telophase.
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- True
- False
Pregunta 28
Pregunta
Typically, the longest phase of mitosis is anaphase.
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- True
- False
Pregunta 29
Pregunta
The cell shown in step E in Figure 10-7 above is undergoing telophase.
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- True
- False
Pregunta 30
Pregunta
The number of sister chromatids in a human body cell that is entering cell division is [blank_start]____________________[blank_end].
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92
Pregunta 31
Pregunta
A cell that has 5 chromosomes in the G1 phase will have [blank_start]10[blank_end] chromatids in the G2 phase.
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10
Pregunta 32
Pregunta
The structure labeled A in Figure 10–8 is called the [blank_start]_________________________[blank_end].
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Cell Plate
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Centromere
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Spindle Fiber
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Centriole
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