NEW
Font size
WorksheetsUnit 3-part 2 Review
Total questions: 40
Worksheet time: 30mins
Scientists at Mauna Loa Observatory, in Hawaii, have been measuring carbon dioxide (CO2) levels in the atmosphere since 1958. Their research has shown a steady increase in CO2 levels, a trend which threatens environmental health. Which process below would be necessary to lower the carbon levels in the air?
Cellular respiration
Decomposition
Photosynthesis
Transpiration
A plant and numerous snails occupy the same tightly closed aquarium. The aquarium is exposed to sunlight for 12 hours a day and has 2 inches of water in it. What would happen to the plant if you removed all the snails from the aquarium?
The plant would die from lack of glucose.
The plant would die from lack of oxygen.
The plant will thrive because it can undergo both processes of photosynthesis and cellular respiration.
The plant will thrive because it can photosynthesize but then it will die because it cannot perform cellular respiration.
The diagram below creates an analogy between a machine and the process of photosynthesis. Using this analogy, what is represented by the letter B?
Oxygen gas (O2)
Nitrogen gas (N2)
Glucose (C6H12O6)
Carbon Dioxide (CO2)
A potted plant is placed inside a clear, sealed vacuum container that has water pumped into it on a regular basis. The container is placed in the sun and the plant’s growth is monitored. Which statement best describes what will most likely happen to the plant over time?
The plant will grow faster because it is sheltered from the wind.
The plant will die because it does not have oxygen for photosynthesis.
The plant will die because it does not have carbon dioxide for photosynthesis
The plant will grow at a slower rate because it requires more water.
Which of the following are the reactants of photosynthesis?
carbon dioxide and water
glucose and carbon dioxide
water and glucose
oxygen and water
Which most accurately describes the difference in ATP production between aerobic respiration and anaerobic respiration?
Aerobic respiration produces more ATP than anaerobic respiration.
Anaerobic respiration produces more ATP than aerobic respiration.
Only anaerobic respiration produces measurable amounts of ATP.
Anaerobic and aerobic respiration produce the same amount of ATP.
Two different species of bacteria are examined. Scientists find that species X always produces CO2 and H2O during cellular respiration. Species Y always produces ethyl alcohol and CO2. Which conclusion can be made from these observations?
Only species Y is aerobic.
Only species Y is anaerobic.
Both species X and Y are aerobic.
Both species X and Y are anaerobic.
A weightlifter is using heavy weights in short bursts for a competition. Because his muscle cells are not able to take in enough oxygen to make very much ATP the weightlifter begins to get fatigue in his muscles. Which of the following processes is most likely going on in the muscles of the weightlifter as he competes in his event?
As the cells run out of oxygen they switch to anaerobic respiration, which allows the cell to make small amounts of ATP in the absence of oxygen.
As the cells run out of oxygen, they die off gradually and the weightlifter's muscles have fewer contracting muscle cells.
The cells will never run out of oxygen if the weightlifter is breathing.
As the cells run out of oxygen, they will continue to make the same amount of ATP, since oxygen is not required to make ATP.
Why are aerobic reactions more efficient for cellular metabolism than anaerobic reactions?
Aerobic reactions build up lactic acid, which contains more stored energy.
Aerobic reactions are faster than anaerobic reactions and generate more ADP.
Aerobic reactions do not require oxygen to build protein molecules.
Aerobic reactions break down sugars more completely and produce the maximum amount of ATP.
Which of the following are the essential raw materials needed for Cell Respiration to occur?
Carbon Dioxide, Water, ATP
Glucose and Oxygen
Glucose and Carbon Dioxide
Carbon Dioxide, Water, Sunlight
In which way are photosynthesis and cellular respiration different?
Cellular respiration stores ATP, while photosynthesis releases ATP.
Cellular respiration produces oxygen, while photosynthesis uses oxygen.
Photosynthesis releases energy, while cellular respiration stores energy.
Photosynthesis used carbon dioxide, while cellular respiration produces carbon dioxide.
How are cellular respiration and photosynthesis related, in terms of energy?
The energy captured in photosynthesis is used to power cellular respiration.
The energy transformed in cellular respiration is used to power photosynthesis.
Photosynthesis and respiration perform the same task in terms of energy transformation.
Energy is not involved in either photosynthesis or cellular respiration.
How are cellular respiration and photosynthesis related, in terms of energy?
The energy captured in photosynthesis is used to power cellular respiration.
The energy transformed in cellular respiration is used to power photosynthesis.
Photosynthesis and respiration perform the same task in terms of energy transformation.
Energy is not involved in either photosynthesis or cellular respiration.
Photosynthesis and cellular respiration are important biochemical reactions necessary to life. Together, they supply living things on earth with a usable source of energy. In what form does this usable energy exist?
Sunlight
ATP
Potential Energy
Electromagnetic Fields
Which of the following diagrams accurately represents the use of gases in both cellular respiration and photosynthesis?
A
B
C
D
Dermal tissues in terrestrial plants produce a waxy cuticle that protects the leaf. If this waxy covering were overproduced and the stomata became clogged, which of the following would probably occur?
The plant would be unable to absorb oxygen and water from the air, causing the plant to shrivel and its cell functions to cease.
The plant’s stomata would be unable to open, and it would have a limited ability to perform photosynthesis.
The plant’s photosynthetic cells would be unable to receive light energy, and the plant would have a limited ability to perform cellular respiration.
The plant would be unable to transport glucose to its cells, and the production of energy cellular respiration would slow down.
The structure of a leaf maximizes which physiological process?
absorption of water for cell respiration
absorption of water for transpiration
exchange of gases for photosynthesis
manufacture of energy for cell reproduction
On leaves and some stems, epidermal cells may secrete a wax-coated substance that becomes the cuticle which provides protection in a variety of ways. What tissue system would it be a part of?
Dermal Tissue System
Ground Tissue System
Vascular Tissue System
Parenchyma Tissue System
In our bodies, the vascular system is made up of arteries and veins. In a plant, what components make up the vascular system?
Flowers and Seeds
Leaves and Stems
Phloem and Xylem
Root Hairs and Roots
As Sarah gets ready to leave for school one spring morning she notices a layer of yellow dust covering her mother’s car. Her mother informs her that the dust is pollen from the pine trees in the backyard. Which pine tree structure is responsible for production of the pollen?
cones
needles
seeds
spores
The cell cycle includes several processes during which the cell grows, replicates its DNA, and divides. Only a small part of the cycle is spent in dividing. During which part of the cell cycle does the cell divide?
Gap 1 (G1)
Gap 2 (G2)
Mitosis
Synthesis
Cancerous lung cells do not respond to the signals that regulate normal growth. Which of the following processes does not function normally in cancerous lung cells?
Meiosis
Respiration
Cell Cycle
Transpiration
A scientist recorded a time-lapse video of a cell going through a complete cell cycle. A time-lapse video allows for something that takes time to be sped up to see it occurring much quicker. When the scientist noticed that one cell was larger than the surrounding cells and had twice as much genetic material, what phase had just been completed?
Cytokinesis
G1
Telophase
S
Juan and Luann are conducting an experiment on the cell cycle. A diagram of the cell cycle is shown below.
In their experiment they treated a cell with chemicals that blocked the Gap 2 phase (G2) of Interphase. What would most likely be the immediate result of Juan and Luann’s experiment?
Damaged DNA could be passed on to daughter cells.
DNA will not be synthesized in the cell.
Organelles would not be replicated.
Cell division would not occur.
Which of the following phrases best describes cancer?
absence of cyclins in the DNA
multiple gene mutations on a chromosome of DNA
uncontrolled cell growth caused by mutations in genes that control the cell cycle
presence of genetic defects caused by hereditary disorders
The diagram below shows two strawberry plants.
Plant 2 is produced asexually from Plant 1. If the leaf cells of Plant 1 have 56 chromosomes, how many chromosomes will be found in the leaf cells of Plant 2?
14
28
56
112
When a cell in your skin divides, each daughter cell contains organelles, including a nucleus. The nucleus contains a certain number of chromosomes. What would be the best statement about the number of chromosomes in a daughter cell in your skin?
Each daughter cell has the same number of chromosomes as the parent cell.
Each daughter cell has twice the number of chromosomes as the parent cell.
Each daughter cell has half the number of chromosomes as the parent cell.
Each daughter cell has four times the number of chromosomes as the parent cell.
This is the longest phase of Mitosis: when chromosomes appear, the centrioles separate, and the spindle fibers begin to form.
Anaphase
Prophase
Telophase
Metaphase
A species of shark normally reproduces sexually. In captivity, it was found that a female could also reproduce asexually. Which of the following is a negative result from asexual reproduction?
Decreased number of eggs used
Increased gene recombination’s
Increased number of males produced
Decreased biodiversity within the species
The cell cycle consists of many phases in the life cycle of a cell. Two of these phases are prophase and telophase. Which statement describes a difference between prophase and telophase?
Centrioles form in telophase but not in prophase.
Chromosome coils tightly in prophase and loosens in telophase.
The spindle fibers form in telophase and break down in prophase.
The nuclear envelope forms in prophase and breaks down in telophase.
During meiosis I, cells begin to divide in a way that is very similar to the process of mitosis. However, what major event takes place in meiosis I that does not occur in mitosis?
crossing over
Interphase
Chromosome replication
Mutation
During the cell cycle, sister chromatids separate from each other and the spindle fibers begin to shorten. In which phase would this occur?
Prophase
Anaphase
Metaphase
Telophase
The diagram shows homologous chromosomes during prophase I of meiosis. Which of the following correctly describes the process being illustrated?
mutation in which the DNA content of the gene is altered
segregation of sister chromatids
condensation and segregation of alleles
crossing-over in which alleles are exchanged
The diagram to the right represents a cell which has gone through the process of Meiosis and produced four daughter cells.
Which statement correctly describes the daughter cells?
They will not pass on any of the genes that they received from the original cell.
They will pass half of the genetic information they received from the original cell.
They will undergo the same mutations as the original cell after reproduction has occurred.
They will produce offspring that will have the same genetic information as the original cell.
Homologous chromosomes are very similar but not duplicates. Sister chromatids on the other hand are duplicate halves of a chromosome. What happens to homologous chromosomes and sister chromatids during Meiosis l and Meiosis ll?
Homologous chromosomes divide in Meiosis l and sister chromatids divide in Meiosis ll
Homologous chromosomes divide in Meiosis ll and sister chromatids divide in Meiosis l
Homologous chromosomes become haploid in Meiosis l and sister chromatids produce 4-diploid cells
Homologous chromosomes become diploid in Meiosis l and sister chromatids produce 2-haploid cells
Somatic cells undergo mitosis whereas gamete cells undergo meiosis. Mitosis takes place throughout the lifetime of an organism. What is the biggest difference between these processes?
Mitosis undergoes reduction division to produce diploid cells
Meiosis undergoes reduction division to produce diploid cells
Mitosis undergoes reduction division to produce haploid cells
Meiosis undergoes reduction division to produce haploid cells
Mitosis and meiosis are processes involved in cellular reproduction. Which of the following describes and event that results from mitosis but NOT meiosis?
two stages of cell division
replication of cellular genetic material
daughter cells that are identical to the parent cell
four daughter cells that are produced from each parent cell
Somatic cells undergo mitosis whereas gamete cells undergo meiosis. Mitosis takes place throughout the lifetime of an organism. What is the biggest difference between these processes?
Mitosis undergoes reduction division to produce diploid
Meiosis undergoes reduction division to produce diploid cells
Mitosis undergoes reduction division to produce haploid cells
Meiosis undergoes reduction division to produce haploid cells
Somatic (body) cells reproduce by mitosis. Gametes are produced by the process of meiosis.
Compared to the parent cells, how many chromosomes are found in gametes?
one-fourth the number of chromosomes
the same number of chromosomes
twice the number of chromosomes
half the number of chromosomes
There are many different types of cells and cellular reproduction. In a human, there are two main types of cells: sex cells and somatic cells, also known as body cells. Which statement correctly describes how sex cells and somatic cells reproduce?
Cells that undergo mitosis increase the number of somatic cells; cells that undergo meiosis increase the number of sex cells.
Cells that undergo mitosis keep the same number of somatic cells; cells that undergo meiosis decrease the number of sex cells by half.
Cells that undergo mitosis increase the number of sex cells; cells that undergo meiosis increase the number of somatic cells.
Cells that undergo mitosis decrease the number of sex cells by half; cells that undergo meiosis increase the same number of somatic cells.
