WorksheetsChapter 6
Total questions: 15
Worksheet time: 14mins
A student observed onion cells in various stages of cell division. The results of two samples are shown in the table.
Which statement best explains why more cells were seen in the interphase stage?
The onion cells in the sample were not dividing when cells were counted.
Interphase is the longest stage of the cell division process.
The onion cells were mutating instead of dividing.
The student did not count enough cells to find other stages of cell division.
Use the information to answer the question. At checkpoints in the cell cycle, cells examine internal and external cues as a way to start or stop cell division. Examine a model of the cell cycle.
What typically happens if a normal cell detects an issue when it checks for DNA damage and determines if DNA replication is complete?
The cell cycle stops, and the cell attempts to repair the damage or complete DNA replication.
The cell cycle proceeds with uncontrolled cell division to produce malignant tumors.
The cell cycle stops, and the cell dies immediately to prevent the damaged DNA from being passed to daughter cells.
The cell cycle proceeds with mitosis to produce one generation of daughter cells with damaged DNA.
What is the function of M checkpoint in the cell cycle?
Check and repair the DNA Damage.
Ensures that sister chromatids are correctly attached to the spindle microtubules.
Monitor that the cell size and whether the DNA has damaged or not.
Nutrients, growth factors and DNA damaged are check and repaired to ensure that the cell divides correctly.
What is the end result of mitosis?
two different daughter cells
four different daughter cells
four identical daughter cells
two identical daughter cells
Why is it important for the cell to replicate the DNA before beginning the M phase?
To increase the lifespan of the daughter cells.
To produce extra proteins for the daughter cells.
To ensure that there is enough DNA for the daughter cells.
To allow for the creation of an unlimited number of daughter cells.
The model shows the process of cell division and cell differentiation during the development of multicellular organism.
Which statement correctly identifies the roles of cell division and differentiation during development?
Cell division and differentiation convert one mature cell into stem cells.
Cell division and differentiation produce cells that are identical to the original cells.
Cell division produces new daughter cells and cell differentiation converts stem cells into different cell types.
Cell differentiation helps produce new stem cells and cell division fuses stem cells together.
Which of the following shows mitosis?
A
B
C
Which example in the human body demonstrates mitosis? Choose two answers.
cheek cells being removed during eating
skin cells dividing to heal a wound
baby growing into a child
fat cells providing energy to the body
The image shows the healing of a skin injury. Which type of cell division takes place to heal the wound, and why?
Meiosis, it produces more cells per division to cover the site of injury quickly.
Mitosis, it produces large cells to cover the site of injury quickly.
Mitosis, it produces cells that are like the lost cells at the site of injury.
Meiosis, it produces cells that are genetically different from the lost cells at the site of injury
Which statement is true about mitosis?
It is a form of asexual reproduction resulting in daughter cells that each have half the number of chromosomes as the parent cell.
It is a form of asexual reproduction resulting in daughter cells that each have one set of chromosomes identical to the parent cell.
It is a form of sexual reproduction resulting in daughter cells that each have half the number of chromosomes as the parent cell.
It is a form of sexual reproduction resulting in daughter cells that each have one set of chromosomes identical to the parent cell.
Plant and animal cells both go through mitosis but have a few significant differences. Examine the diagram showing a plant cell and animal cell in the same stage of mitosis.
Which statement explains which cell is the plant cell and animal cell?
Cell W is an animal cell because it does not have centrioles forming the spindle fiber for the attachment of the chromosomes.
Cell W is a plant cell because it has a cell plate forming between the separating chromosomes.
Cell X is a plant cell because the cell membrane is pinching in between the separating chromosomes.
Cell X is an animal cell because it does not have any spindle fiber for the attachment of the chromosomes.
The table shows features of different cells in a human body.
What can be concluded from the table?
Different cells function together to perform a single task.
Different cells are specialized to perform different functions.
The same gene is expressed differently in different cells.
The same task is performed by different structures in different cells.
Which statement is true about the differentiated cells in an organism?
All cells begin with the same basic DNA but gain additional genes allowing them to differentiate.
Once fertilization occurs, differentiated cells exist because every cell contains different DNA.
Differentiated cells have the same DNA, but they do not activate all parts of their DNA.
All cells start with the same DNA but lose various non-essential segments of DNA during differentiation.
The tables compare the genes in bone cells and blood cells. Which statement best explains how cells with the same DNA can become bone or blood cells?
Both cell types have different genes activated.
Both cell types have the same genes repressed.
When gene 2 is activated, the cells will always become bone cells.
When gene 2 is repressed, the cells will always become blood cells.
During cytokinesis, animal cells divide by forming a _________(a)___________, while plant cells divide by forming a ________(b)____________.
a. cell plate
b. cleavage furrow
a. cleavage furrow
b. cell plate
a. mitosis
b. meiosis
a. identical cells
b. different cells
