A Scientist discovers a chemical that she thinks might be a potential treatment for a certain type of cancer cell. In order to test her hypothesis, the scientist treats one plate of cancerous cells with the newly discovered chemical, and leaves another plate of cancerous cells untreated. After 7 days, the scientist measures the number of living cells in each plate. The scientist finds that the cells treated with the chemical have a lower survival rate than cells left untreated. The scientist further observes that the substance has an effect on the Rough endoplasmic reticulum (RER). How might disabling the rough ER potentially hurt the cancerous cells? Be specific in your answer. What is the dependent variable? What is the independent variable?

Answers

Answer 1

Answer:

Affecting the ER causes alteration in cell homeostasis and eventual death.Independent variable: Drug or chemicalDependent variable: Cancer cells survival.

Explanation:

Hypothesis ⇒ A chemical ⇒ might be a potential treatment for cancer cells.

Experiment:

Treated ⇒ One plate of cancerous cells with the new chemicalUntreated ⇒ Another plate of cancerous cells with no chemical

7 days later ⇒ the number of cells in each plate

Results:

Cells treated with the chemical have a lower survival rate than cells left untreated.

Treated plate ⇒ fewer cellsUntreated plate ⇒ more cells

Chemical affects the Rough endoplasmic reticulum (RER)

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The endoplasmic reticulum is in charge of many cellular functions, such as protein folding, maturation, and transport, especially those destined for secretion. It produces the latest protein modifications after transduction.

When the synthesizing protein gets in the Rough endoplasmic reticulum,  it continues its building in the organelle. Finally, the protein suffers folding and the initial stages of glycosylation.  

Once the protein synthesis in the endoplasmic reticulum is over, these molecules are packaged into vesicles and sent to the Golgi complex for their final association with carbohydrates. Finally, protein leaves the Golgi complex and goes to its final destiny.

Any alteration in the intracellular environment

inevitably affects the organelle and its functions. When the organelle is not properly working, proteins synthesis is affected and, consequently, all the cellular activities. The affected cell homeostasis might be so altered that the cell ends dying.

If the drug affects the ER by altering its environment or directly affecting it, the organelle will fail to perform its functions, and the cell will eventually dye.

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The independent and the dependent variables are the two principal factors needed in an experiment.  

 Independent variable: Refers to all the variables in an experiment that provoke a response in another variable. The independent variable changes or is controlled and modified in the experiment to analyze how another variable responds to it. It changes to analyze its effects on the dependent variable. Usually, the independent variable is represented by the X letter.

In the exposed example, the independent variable is the drug that affects the cancer cells. The researcher decides to apply it or not, and the concentrations in which the drug is.  

Dependent variable: Refers to the variable that reacts to the changes produced in the independent variable. Depending on how the independent variable is modified, the dependent variable change.  It is usually identified by the letter Y.

In the exposed example cell survival is the dependent variable. Cancer cells respond to the presence/absence of the chemical, and might differently respond to the varying concentration of the drug.


Related Questions

Glucose can be stored as glycogen in the liver and muscles. blood and lymph. liver and kidneys. heart and kidneys .

Answers

The Answer is
-Liver and muscles

An open circuit means that

Answers

Answer:

An open circuit is one where the continuity has been broken by an interruption in the path for current to flow. ... An open switch is one without continuity: current cannot flow through it. A closed switch is one that provides a direct (low resistance) path for current to flow through.

Explanation:

I hope this helps you!

Which of the following are stages in the life cycle of a mosquito?

tap the photo ​

Answers

Answer:

the answer is D. I, II, III

Explanation:

The mosguito goes through all 3 stages the egg, pupa, and larva

Question 17 of 30
15 ~ 94%
Complete the following sentence. Iron usually forms only an _____
magnet that loses its
magnetism when moved away from a magnetic source. What one word completes the sentence?
Enter your answer

Answers

Answer:

Iron usually forms an

Induced magnet

Answer:

Temporary or Induced Magnets.

Explanation:

Temporary magnets: These magnets are made of soft iron that has temporary magnetic properties. These magnets behave as permanent magnets when introduced to a magnetic field but lose magnetism when moved away from the magnetic source.Temporary magnets are usually used in radio, electric motors, phones.They are extensively used as electromagnets to produce electricity. The demagnetizing property of electromagnets by altering the intensity of electric current helps in a lot of practical applications based on controlled situations.

For more information:

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The two parts of cellular respiration which must occur twice for each glucose molecule that enters the process are

Answers

Answer:

the citric acid cycle and preparatory steps

In Osmosis, a cell becomes turgid when it:
A. expands from absorbing too much water.
B. bursts from absorbing too much water.
C. bursts from absorbing too much water.
D. contracts from absorbing too much water.

Answers

Answer:

A

Explanation:

This occurs when a plant cell is placed in a hypotonic solution.A solution were the external solution concentration is less than the internal concentration of the cell, causing water to rush into the cell.

During osmosis by absorbing too much water from outside the cell, a cell becomes turgid. The correct option is A.

What is osmosis?

Osmosis is the passage of water molecules via a cell's partially permeable membrane from a solution with a large concentration of water molecules to a solution with a lower concentration of water molecules.

Osmosis occurs when the concentration gradient of water reaches zero or when the water's hydrostatic pressure equals the osmotic pressure.

Endosmosis and exosmosis are the two main types of osmosis that occur when water moves across the cell membrane. When cells are placed in a hypotonic solution, endosmosis occurs, which is the movement of water into the cell.

When cells are placed in a hypotonic solution, exosmosis occurs, which is the movement of water out of the cell.

Thus, the correct option is A.

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Name the type of classifications of tissue formed by combination of cell.

a) Red Blood Cell:
b) Muscle Cell:
c) Nerve Cell:​

Answers

Answer:

its (a)

Explanation:

A tissue is a group of red blood cells of common origin which are structurally similar and perform a particular function. Organ is a group of tissues and organ system is a group of organs.Therefore, the correct answer is option A.

hope it helps you.

pls mark me as branliest

How to push out feeces quietly in public. I have a situation!!!

Answers

Answer:

oop-

Explanation:

did you eat too much paw patrol cake?

Answer:

WTH

Explanation:

But do bring/buy a nappy next time.!!!

Scientists have found fossils of cyanobacteria that are more than 3.5 billion years old. How did these cyanobacteria help to change Earth’s early atmosphere to allow for the evolution of aerobic organisms?
A. Cyanobacteria added oxygen to Earth’s atmosphere through the process of photosynthesis.
B. Cyanobacteria added carbon dioxide to Earth’s atmosphere through the process of cellular respiration.
C. Cyanobacteria added methane to Earth’s atmosphere through the process of chemosynthesis.
D. Cyanobacteria added hydrogen to Earth’s atmosphere through the process of nuclear fission.

Answers

Answer:

The answer is A.

Explanation:

Because they evolved to release oxygen through photosynthesis.

Through the process of photosynthesis, cyanobacteria added oxygen to the Earth's atmosphere. The correct option is A.

What is cyanobacteria?

Cyanobacteria are aquatic and photosynthetic, which implies they live in water and can make food. Since they are bacteria, they are tiny and usually unicellular, though they frequently grow in visible colonies.

Photosynthesis is the process by which cyanobacteria add oxygen to the Earth's atmosphere.

Thus, the correct option is A.

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During intense exercise, the muscle cells require constant supply of ATPs but the supply of oxygen is low. In that case - the muscle cells of the person will switch from which to which pathway?

Answers

Answer:

Aerobic to lactic acid fermentation pathway

Explanation:

ATP, which is the usable form of energy in living cells, is obtained via a process called RESPIRATION. However, aerobic respiration requires a constant supply of oxygen to occur. Hence, during an intense exercise where the supply of oxygen is low, the muscle cell has to switch from the respiration pathway that requires oxygen to one that doesn't.

Fermentation is a kind of cellular respiration that does not require oxygen to occur. In the muscle cells of animals (humans inclusive), lactic acid is the product of the fermentation process, hence, it is called LACTIC ACID FERMENTATION. This means that the muscle cells, in a low supply of oxygen, will switch from AEROBIC to LACTIC ACID fermentation pathway.

¿Es normal el efecto invernadero?

Answers

Answer:

i think it is

Explanation:

its because greenhouse effect is a natural process which warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases.

The scientific method is the process that scientists use to find out new information. It involves a question, a hypothesis, a prediction, collecting data, and analyzing that data to make a conclusion. How would you use the scientific method to answer this question: Do mice live longer when they are fed high-sugar diets? (15 points)

Answers

Answer:

Science deals with emperical to finding solutions to problem

Explanation:

This research should be subject to case study. You will select two groups of mice. One group with high feed of sugar diet and second group with a minimum diet of sugar. You will study the two groups in order to know which one lives longer

pls help I don’t understand this yet since I wasn’t able to understand during school year

Answers

Answer:

D.

Explanation:

recessive is lower case and the other word that starts with "H" means same

When individuals migrate, alleles can be transfered from one population to another population. This commonly referred to as

Answers

Answer:

Gene flow.

Explanation:

When individuals migrate, alleles can be transferred from one population to another population which is known as gene flow. Gene flow is also called gene migration, the introduction of genetic material through interbreeding from one population of organisms to another which changes the composition of the gene pool of the migrated population of organisms. This gene flow creates a new species that is different from previous population of organisms


Question 10 of 10
Which organisms convert nitrogen gas into a form that is usable by plants?
A. Fungi
B. Algae
C. Bacteria
D. Animals

Answers

Answer:

bacteria

Explanation:

Nitrogen gas (N2) diffuses into the soil from the atmosphere, and species of bacteria convert this nitrogen to ammonium ions (NH4+), which can be used by plants. Legumes (such as clover and lupins) are often grown by farmers because they have nodules on their roots that contain nitrogen-fixing bacteria.

is an avocado a fruit?

Answers

Yes indeed it is, I actually didn’t know that tho

Which layer of Earth has the highest temperatures at 5000-6000 Celsius?

Answers

Answer:

Inner Core

Explanation:

The inner core is the most inner layer of the earth. The inner core contains iron, the iron in the inner core is not pure (so not just iron) scientists believe it contains sulfur and nickel and also smaller amount of other elements. The inner core is extremely hot it is somewhere between 9000 and 13000 degrees Fahrenheit (5000 and 7000 degrees Celsius).  

explanation credit to: katnissdiv1 on weebly

The lodgepole pine has two kinds of cones that have seeds. What do they do for the lodgepole tree population?

Answers

Answer:

Seeds from cones on the forest floor may provide a viable seed bank for lodgepole pine regeneration following forest destruction by mountain pine beetles.

Explanation:

They do for the lodgepole tree population Seeds from cones on the forest floor may provide a viable seed bank for lodgepole pine regeneration following forest destruction by mountain pine beetles.

What is a possible limiting factor of that lodgepole pine?

The mountain pine beetle is the limiting factor to the population of lodgepole pines in Colorado. It devastated large numbers of trees in the state and in the northern mountains of the United States.  

Thus, lodgepole pine regeneration follows forest destruction by mountain pine beetles.

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Glycine is highly conserved amino acid residue in the evolution of proteins. why?

Answers

Answer:

Glycine is a highly conserved amino acid residue in the evolution of proteins. Why? Glycine has the smallest side chain of any amino acid. Its size often is critical in allowing polypeptide chains to make tight turns or to approach one another closely.

Explanation:

Help plzz!! I’ll mark you as brainliest
What is the definition of specific heat capacity?
O A. The amount of heat required to break the chemical bonds in 1 g of
a substance
B. The amount of heat required to form 1 g of a substance from its
elements
C. The amount of heat required for 1 g of a substance to undergo a
phase change
D. The amount of heat required to raise the temperature of 1 g of a
substance by 1°C

Answers

Option D is the correct option..

D. The amount of heat required to raise the temperature of 1 g of a

substance by 1°C

how to identify oxygen and carbon dioxide?

Answers

Answer:

Place a glowing splint in the test tube, and if it reignites, it could be oxygen. Place a burning splint into a test tube, and if it goes out, it could be carbon dioxide. Or, place carbon dioxide gas in limewater, and if it turns milky and gets chunks, it is carbon dioxide.

Answer: Place a glowing splint in the test tube, and if it reignites, it could be oxygen. Place a burning splint into a test tube, and if it goes out, it could be carbon dioxide. Or, place carbon dioxide gas in limewater, and if it turns milky and gets chunks, it is carbon dioxide.

Explanation:

i have done it before:)))

The structural integrity of bacteria is to peptidoglycan as the structural integrity of plant spores is to

Answers

Answer:

Lignin.

Explanation:

The structural integrity of plant spores is lignin that is present in many parts of the plant. This lignin provides hardness to the plant body which help them to stand the plant erect. If this lignin is not present in the plant body the plant will not stand erected. This lignin is present in large amount in the stem of plant body so that's why the lignin provides structural integrity to plant spores

describe a tulip flower based on its physical characteristics

Answers

Answer:

D)The tulip plant is categorized as a monocot. The statement that best describes the flower based on its physical characteristics is "The tulip plant is categorized as a monocot." Monocots are plants the bears' flowers whose seeds regularly contain just a single embryonic leaf or cotyledon.

Explanation:

Use the Punnett square to determine the ratio of offspring with the described trait to the total number of offspring

Answers

Explanation:

X y

X XX Xy

y Xy yy

capital letter is dominant

small letter is recessive

example

capital letter could be brown eyes

small letter could be blue eyes

Complete the sentence below by selecting the correct words from the drop-down menus. Factors that affect natural selection include , , and .

Answers

Answer:

The correct answer is -

variation, over population and adaption.

Explanation:

Natural selection is the process to which the various species and populations are able to adapt and change according the environmental changes. It is affected by three main factors that are variation, over population and adaption.

Variation: varion is one of the factor that pushes the population to change towards the beneficial variation in the population for their survivability and reproducing theirselves.

Overpopulation: over population increases the competition amon population and there fore there resources become limited so few have to change or their ways of utilizing resources.

Adaption: Adapting the change takes place due to any situation in environmental that put stress on the population allow them to adapt according the change or they will extinct.

Answer:

Variation, overpopulation, and adaption

Explanation:

I can confirm this is the right answer, because I just did the assignment.

why is there a rich capillary network around all endocrine glands​

Answers

the hormones secreted by the endocrine glands enter the circulation and are carried throughout the body to act upon target cells located far away from the secreting glands. Thus, endocrine glands are highly vascularized with many small capillaries among the nests of endocrine cells.

Answer:

the hormones secreted by endocrine gland enter the circulation and are carried throughout the body to act apon targeted cells located far away from the secreting gland. that's the reason why endocrine glands are vascularized with small many capillaries amongst the nest of their cells

What are the two function of sweat

Answers

Answer:

Its main function is to control body temperature. As the water in the sweat evaporates, the surface of the skin cools. An additional function of sweat is to help with gripping, by slightly moistening the palms.

Explanation:

Which of the following is NOT part of the circulatory system?
lungs
heart
arteries
blood​

Answers

I’m not 100% sure about this one but I believe that it is lungs, seeing that the rest is blood you can just like pick the most obvious one out

The type of muscle fibers that are the largest, contain the most myofibrils and can generate the most powerful contractions are the:

Answers

Explanation:

fast glycolytic type (IIb) fibers

A population of birds lives on a small island. Another population of the same species lives on the mainland. The
distance between the island and the mainland is too great for birds to fly back and forth. Recently, a series of
sandbars and tiny islands have formed between the island and the mainland.

Answers

Answer:

The birds can now reach the Island.

Explanation:

The birds can now reach the Island because there is a sandbars and tiny Islands where they can rest for sometime as well as feed on the insects present at that sandbars and tiny Islands. Before these sandbars and tiny islands, the birds can't reach to the mainland due to large distance between Island and mainland so they have no capability to fly such large distance until the tiny Island and sandbars are appeared in the ocean.

Answer: an increase in gene flow between the bird populations

Explanation: :)

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Explain why the flow from the battery increases when the switch is closed. Give the label of the concept(s) that you use from the model of electricity. [ Using the organisms you identified in part B, create a food web for the ecosystem you chose. Use this sample food web for reference, although your food web will contain fewer organisms. Note that your food web does not have to include images, but you may include them if you choose. However, be sure to include arrows to indicate the direction of energy flow in your food web. Design your food web using any method listed below: An urn contains 2 small pink balls, 7 small purple balls, and 6 small white balls.Three balls are selected, one after the other, without replacement.Find the probability that all three balls are purpleExpress your answer as a decimal, rounded to the nearest hundredth. 1. Explain the relationship between the terms species and organism. Which of the following best defines "diction?" a. the use of figurative language b. the use of a dictionary to learn foreign language c. word choice d. sentence fluency Which conclusion about f(x) and g(x) can be drawn from the table?The functions f(x) and g(x) are reflections over the x-axis.The functions f(x) and g(x) are reflections over the y-axis.The function f(x) is a decreasing function, and g(x) is an increasing function.The function f(x) has a greater initial value than g(x). Instructions: Find AB. given that line AD is the perpendicular bisector of BC. pls help me im so stuck Ten years from now, Abdul will be twice as old as his son pavel ten years ago, Abdul was seven times as old as pavel how old are Abdul and pavel now? 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This exercise gives you the opportunity to not only recognize and analyze the value, attitudes, and moods and emotions of others, but to reflect on your own as well. It is important not only to be able to recognize how these elements affect others at work but also how you values, attitudes, and moods and emotions affect you and others around you. Write the name to the appropriate area below.i. Esther ii. Alex iii. Hector iv. Douglas v. Connie vi. Rebecca vii. Guya. Terminal valueb. Instrumental valuec. Normd. Organizational citizenship behaviore. Organizational commitmentf. Positive moog. Negative mood A cardboard box without a lid is to have a volume of 4,000 cm3. Find the dimensions that minimize the amount of cardboard used. (Let x, y, and z be the dimensions of the cardboard box.) Juan and Lizette rented a car for one week to drive from Phoenix to Boise. The car rental rate was $250 per week and $0.20 per mile. By the most direct route, the drive is 926 miles. How much did they spend on the rental car? help plisssss(no entiendo) PLEASE HELP ASAP! What is the value of x in the inequality start fraction seven plus two x over five end fraction minus three less than x ?A. x greater than negative start fraction eight over three end fractionB. x less than negative start fraction eight over three end fractionC. x greater than start fraction eight over three end fractionD. x less than negative start fraction three over eight end fraction What organisms are in the chlorophyta reichenbach phylum Half a league, half a league,Half a league onward,All in the valley of DeathRode the six hundred:'Forward, the Light Brigade!Charge for the guns' he said:Into the valley of DeathRode the six hundred.'Forward, the Light Brigade!'Was there a man dismay'd ?Not tho' the soldier knewSome one had blunder'd:Theirs not to make reply,Theirs not to reason why,Theirs but to do and die,Into the valley of DeathRode the six hundred.Cannon to right of them,Cannon to left of them,Cannon in front of themVolley'd and thunder'd;Storm'd at with shot and shell,Boldly they rode and well,Into the jaws of Death,Into the mouth of HellRode the six hundred.Flash'd all their sabres bare,Flash'd as they turn'd in airSabring the gunners there,Charging an army whileAll the world wonder'd:Plunged in the battery-smokeRight thro' the line they broke;Cossack and RussianReel'd from the sabre-stroke,Shatter'd and sunder'd.Then they rode back, but notNot the six hundred.Cannon to right of them,Cannon to left of them,Cannon behind themVolley'd and thunder'd;Storm'd at with shot and shell,While horse and hero fell,They that had fought so wellCame thro' the jaws of Death,Back from the mouth of Hell,All that was left of them,Left of six hundred.When can their glory fade?O the wild charge they made!All the world wonder'd.Honour the charge they made!Honour the Light Brigade,Noble six hundred! 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