WorksheetsBIO Ch. 2.2 Test Review
Total questions: 50
Worksheet time: 26mins
What are the two main phases on the cell cycle?
Interphase
Anaphase
M Phase
Mitosis
In the cell cycle, where does the cell spend most of their time?
M Phase
C Phase
Mitosis
Interphase
In what phase does the nucleus of the cell divide?
Anaphase
Prophase
Cytpkinesis
Telophase
Final growth and preparation for cell division occurs in which phase?
G1
S
G2
G0
DNA Synthesis occurs in which phase of the cell cycle?
G1
S
G2
G0
What are two examples of cells that enter the G0 phase?
Cardiac Muscle
Skin Cells
Nerve Cells
Skeletal Muscle
How many daughter cells does mitosis produce?
1
2
3
4
Internal regulators consist of proteins that respond to events
inside the cell
outside the cell
in the nucleus
outside of the body
External regulators consist of proteins that respond to events
inside the cell
outside the body
outside the cell
in the cytoplasm
What is the most important external regulator?
division factor
growth factor
cell factor
all of the above
Cancer is a disease of
Mitosis
Meiosis
Cell Cycle
Growth
What pair is correct
G1 = preparation for cell division
G2= normal growth and function
S= DNA Synthesis
They are all correct
Which of the following is a ways cells can solves the problems of cell growth?
Cell division increases the mass of the original cell
Cell division put less demand on the cells' DNA
Cell division increases the volume of the original cell
Cell division increases the surface area of the cell
Chromosomes are made up of
DNA
Nuclei
Proteins
Fat
How long does the cell spend in interphase?
50%
60%
80%
90%
What occurs during interphase?
The cell divides
The centrioles appear
The spindle fibers form
The cell grows
What statement is true about the rate of cell division?
It is very slow
It is very fast
It slows with age of the cell
It varies in speed
If a cell has 23 chromosomes, how many chromosomes will each daughter cell have
12
20
23
46
In what phase of mitosis does the cytoplasm divide?
Interphase
Prophase
Telophase
Cytokinesis
What happens if the p53 gene is mutated
It may cause significant growth
It may cause down's syndrome
It may cause cancer
It may cause poor intelligence
Which of the following does not occur as the cell grows larger and larger?
The surface area to volume ratio decrease
The surface area to volume ratio increases
The cell can't get enough nutrients
The cell can't get rid of enough waste
What happens in DNA synthesis?
The DNA is deleted
The DNA is replicated
The DNA stays the same
None of the above
In a petri dish, cells will continue to grow and divide until they run out of room. If cells are removed from the middle of the dish what will happen?
The cells will die
The cells will begin to grow and divide
The cells will do nothing
The cells will delete their DNA
What is the type of cell we divide in mitosis?
Sex cell
Body cell
Muscle cell
Nerve cell
What type of cell is divided in meiosis
Gamate
Somatic Cell
Homologous Cell
Chromatin
Why would a cell go into the G0 phase?
Because they don't care about mitosis
Because they divide in a different way
Because they no longer need to go through mitosis
Because they are to large
What is the longest phase of mitosis?
Interphase
Prophase
Metaphase
Telophase
In what phase of mitosis do spindle fibers form?
Interphase
Prophase
Metaphase
Anaphase
In what phase of mitosis do kineticore fibers form?
Porphase
Metaphase
Anaphase
Telophase
In what phase of mitosis do the chromosomes become chromatid?
Prophase
Metaphase
Anaphase
Telophase
In what phase of mitosis does the nuclear envelope dissolve?
Interphase
Prophase
Metaphase
Cytokinesis
A haploid cell has _________ chromosomes
16
23
46
60
A diploid cell has _________ chromosomes
16
23
46
60
Which experiment would best test how negative feedback helps control body temperature?
Measure body temperature before and after jumping in an ice bath
Measure how much a person sweats and how their core temperature changed while running
Ask students if they frrl hot after gym
Record the outdoor temperature during the school day
Which sequence correctly models hierarchical organization from smallest to largest?
Tissue, Cell, Organ, Organ system, organism
Cell, tissue, organ, organ system, organism
Cell, organ tissue, organ system, organism
Organism, organ system, organ, tissue, cell
Which pair of systems best explains how your body coordinates this movement, and why?
Digestive & endocrine- they work together to break down food and release hormones for energy
Nervous & muscular- the nervous system sends signals to the muscles, telling them when and how to move
Respiratory & digestive- they work together to get oxygen and nutrients into the blood
Integumentary & urinary- they help the body remove waste and product internal organs
During exercise, which change most directly supports increases energy production in muscle?
Decreased heart rate
Increased respiratory rate
Reduced blood flow to muscles
Decreased oxygen delivery
Which scenario best illustrates negative feedback?
Placelets releasing chemicals to attract more placelets
Oxytocin increasing uterine contractions
Sweating to cool the body when overheated
Fruit ripening releasing ethylene to ripen nearby fruit
Positive feedback is adaptive when
Stabilizing blood glucose
Rapidly amplifying a beneficial response to complete a process like blood clotting
Maintaining constant internal pH
Sustaining long-term homeostasis
As the cell gets bigger, it starts to have trouble moving materials in and out efficiently. Which statement best explains why this happens?
The DNA makes too many copies too quickly
The cell's surface area increases faster than its volume
The cell's volume increases faster than surface area
The cell membrane stops letting anything in or out
Which outcome is unique to meiosis and no mitosis?
DNA replication is S phase
Production of genetically identical daughter cells
Formations of haploid gametes with variation
Cytokinesis
Which best contrasts sexual and asexual reproduction?
Sexual= one parent; asexual= 2 parents
sexual= genetically identical; asexual= variable offspring
sexual= combines genes from 2 parents; asexual= identical to 1 parent
sexual= faster than asexual in all environments
If spindle fibers fail to attach to the centromere on a chromosome, which checkpoint should halt the cycle?
G1 Chckepoint
G2 Checkpoint
M Checkpoint
DNA damage checkpoint S
A cell with 2n= 6 completes meiosis. Each gamete contains:
6 chromosomes
3 chromosomes
12 chromosomes
1 chromosomes
Which result best explains what happens to the gametes when this error occurs?
All gametes end up with the normal number of chromosomes
2 gametes are normal and the other 2 have the wrong number of chromosomes
All four have an extra chromosome
All gametes are identical to body cells with 2n chromsomes
Which scenario best uses a model to show system interdependence during exercise?
Diagram of the heart only
Flowchart: respiratory uptake -- circulatory transport -- muscular oxygen use-- increased carbon dioxide -- respiratory rate feedback
List of muscles
Picture of lungs
Cyclin-dependent kinases are proteins that help the cell move through important checkpoints in the cell cycle. If a mutation makes Cyclin-dependent kinases nonfunctional, which outcome is most likely?
Checkpoints become more accurate, and the cell cycle pauses more often
The cell no longer needs cyclins to control the cycle
The cell cannot pass key checkpoints, so the cycle stops at certain points
The cell divides faster and uncontrollably
Compare outcomes: Mitosis and Meiosis II regarding chromatids.
Both separate sister chromatids into diploid cells
Both separate sister chromatids; mitosis yields diploid cells, Meiosis II yields haploid cells
Only meiosis separate chromatids
Only mitosis forms nuclei
A scientist wants to study how the body keeps blood sugar levels stable (negative feedback). Which experiment would best test how the body responds to a rise in blood sugar?
Measure how insulin and glucose levels changee after people eat a controlled amount of sugar, comparing healthy individuals and those with diabetes
Measure how body index (BMI) in athletes
Count placelets during blood clotting
Track heart rate while someone sleeps
Evaluate the claim: "Positive feedback is always harmful to homeostasis."
True; it destabilizes variables
False; while destabilizing, it is beneficial for rapid, goal-directed processes like clotting and childbirth
True; only negative feedback is useful
False; positive feedback maintains long-term stability
