4. Choose the microscopy technique that would best fit the needs of each scenario.

Scenario 1: Scientists are attempting to identify the specific type of leukemia a person has based on cell surface structures. ___

Scenario 2: Researchers are studying chemotaxis in white blood cells. Chemotaxis is the movement of living cells in response to a particular substance. ___

Scenario 3: Cell biologists are interested in measuring the distance between the inner and outer nuclear membranes, and need an instrument capable of producing images where the tiny distance between these two membranes is clear. __

Answers

Answer 1

Answer: Scenario 1: SEM

Scenario 2: Light

Scenario 3: TEM

Explanation:

Answer 2

The technique applied to observe and analyze objects that cannot be seen with the bared eye is called the microscopic technique.

1. The technique used will be SEM. A scanning electron microscope (SEM) is used to generate an image on the individual surface with the help of electron lasers.

It is useful in apprehending cell surface fabrication and topography.

Therefore, to study the cell surface structure of leukaemia SEM is best.

2. The light microscopy technique can be applied to study chemotaxis.

When there will be a movement in the living cell due to response towards chemical then the light microscope can be used to visualise the cells.

Therefore to study chemotaxis light microscopy should be employed.

3. The transmission electron microscope (TEM) method can be used to know the gap between the inner and outer layers. They are used for observing very thin segments of specimens.

Through the thin fragments, the electron flows easily and the image is produced.

Therefore, TEM should be used by scientists to measure the distances.

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Related Questions

What is a strength in the figure?



The figure shows structures in a cell.

The figure shows stem cell differentiation.

The figure shows where mitosis occurs in the cell cycle.

The figure shows DNA replication.

Answers

Answer:

The figure shows where mitosis occurs in the cell cycle. after the interphase

Explanation:

The figure explains where mitosis occurs in the cell cycle, which is present in the third option. The cell cycle is depicted in the diagram, in which different stages are present, such as from the growth stage to the division phase.

What is the role of the cell cycle?

The cell cycle is important for cell growth and division, such as the formation of gametes, the cell's growth from its original size to a larger one, the growth of body's size, and so on. The first phase of the cell cycle is the G1 phase, where the cell grows in size, and later in the S phase, DNA replication takes place. In the given image, the cell cycle is depicted with all of these stages, and after the S phase, the G2 phase takes place, and then mitosis takes place in the M phase.

Hence, the figure explains where mitosis occurs in the cell cycle, which is present in the third option.

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I really just don’t understand this

Answers

Answer:

Capital letter- Element

Explanation:

PLEASE HELP ME!!!


3) Describe a eukaryotic cell. Your description should include where you would expect to
find these types of cells.

4)Describe a prokaryotic cell. Your description should include where you would expect to
find these types of cells.

Answers

3)Eukaryotic cells have membrane-bound organelles. They have a nucleus. They are usually found in animals and plants. In all multicellular organisms and some unicellular(amoeba)

4)Prokaryotic cells don't have a nucleus. They don't contain membrane-bound organelles they only contain ribosomes.They are much smaller. Bacteria are prokaryotes.

A phagocytic cell engulfs a bacterium. This process is known as....

A endoplasmosis
B exocytosis
C passive transport
D endocytosis

Answers

Answer:

D endocytosis

Explanation:

I just found it it's called phagocytosis which is a process of endocytosis

What are the parts and primary function of the male reproductive organ?

Answers

Answer:

The male reproductive system is mostly located outside of the body. These external organs include the penis, scrotum and testicles. Internal organs include the vas deferens, prostate and urethra. The male reproductive system is responsible for sexual function, as well as urination.

Explanation:

The majority of the male reproductive system is found external to the body. The testicles, scrotum, are some of these external organs. The vas deferens, prostate, and urethra are internal organs.

What is the male reproductive system?

The male reproductive system is made up of internal organs including the prostate gland, vas deferens, and urethra as well as external genitalia like the testes, and scrotum.

The health of the male reproductive system and the hormones secreted by the brain determine a man's fertility and sexual characteristics. The male reproductive system is in charge of both urine and sexual function.

They create, retain, and move sperm and semen, which are the male reproductive cells (the protective fluid around sperm).

Therefore, sperm is released into the female reproductive system by them. Male sex hormones are created and secreted by them.

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help?????????????trdgdgdrd

Answers

Answer:

B

Explanation:

its facing more to the east

Multiply (2x + 5)(3x - 4).

Answers

The answer is : 6x^2 + 7x -20

Answer:

6 [tex]x^{2}[/tex]  +  7 x  −  20

According to Chargaff's rule of base pairing, which of the following is true about DNA?
O A=G and C=T
O A=T and C=G
O A=T=G=C
O A=C and G=T

Answers

Answer:

a = t and c = g

Explanation:

just took the test, hope this helps <3

brainliest pls? :)

The Char gaff rule is all about the number of adenine is equal to the number of thymine and with that the number of cytosine is equal to the number of guanine. The correct answer is option B.

What are the types of bonds that are present in between these nitrogenous bases ?

The kind of bonds that are present in these  nitrogenous bases are hydrogen bonds. A binds with T with two hydrogen bonds and C binds with G through 3 hydrogen bonds.

It is all about that the number of purines is equal to the number of pyrimidines. The number of adenine molecule are present totally in equivalence to the number of thymine molecules.

The number of guanine molecules are present in the molecule of DNA are totally in numbers to the cytosine. In place of thymine uracil is present which is present in RNA.

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Self-report inventories are personality tests wherein individuals respond to vague stimuli in a way that may reveal their needs, feelings, and personality traits. Please select the best answer from the choices provided T F​

Answers

Answer:

false

Explanation:

The statement "Self-report inventories are personality tests wherein individuals respond to vague stimuli in a way that may reveal their needs, feelings, and personality traits." is a false statement

What is stimuli response?

Generally, stimuli response is simply defined as a process that leads to a change in the state of an organism

In conclusion Self-report inventories are personality tests wherein individuals respond to vague stimuli is not true.

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what is an energy transformation?​

Answers

Answer: Energy transformation is the process of changing energy from one form to another.

Explanation: Remember that energy cannot be created nor destroyed but it can be transferred or changed from one form to another. For example, chemical to mechanical or electrical to thermal.

Can you give me a slogan for using compost at home

Answers

Answer:

Mark my answer the brainliest if this helps,

A Partner with the Environment.

Because What You’ve Got is Not Waste.

Clean Up Your Act. Compost.

Compost On Your Mind?

Don’t Burn Our Future.

Eat Smart

Enriching the Soil Naturally.

Feed the Soil.

Fit Energy Saving Light Bulbs

Give Green a Chance

Greening the Hill.

It’s Easy to Do.

Lets Talk Dirty.

Local Composting Made Easy.

Making a Clean Scene.

Making a Compost Pile

Mother Nature Recycles.

Nature’s Way to Grow.

Plant a Garden

Plant Trees

Raking Leaves

Recycle All Recyclable Items

Recycle Your Grey Water

Reduce The Use of Energy

Replenish the Earth for Generations.

Reuse Stuff

Reuse Whatever You Can

Reuse, Reduce and Recycle

Save Water To Save Money

Shoveling The Driveway

Smells Like Green Spirit

So Hot Right Now.

Sustainability Stools.

The Compost People.

The Solution to Sustainable Soil and Water.

Think Before You Buy

Too Good to Waste.

Turn It Off When Not In Use

Use Less Electricity

Walk To Work or Take The Bus

Waste Wise.

We Speak Organic.

We’re Growing.

Zero Waste.

Answer:

mark ssydnie the brainliest

Explanation:

The graph represents the outcome of natural selection in a population of Darwin's finches. Which statement best describes this outcome?
A) Finches that are best suited to survive and reproduce (points 1 and 3) are more likely to pass on beneficial traits to their offspring; those less suited (point 2) fail to pass on their traits to their offspring.
B) Finches that are least suited to survive and reproduce (points 1 and 3) are more likely to pass on beneficial traits to their offspring; those more suited (point 2) fail to pass on their traits to their offspring.
C) Finches that are best suited to survive and reproduce (point 2) are more likely to pass on beneficial traits to their offspring; those less suited (points 1 and 3) fail to pass on their traits to their offspring.
D) Finches that are least suited to survive and reproduce (point 2) are more likely to pass on beneficial traits to their offspring; those more suited (points 1 and 3) fail to pass on their traits to their offspring.

Answers

Answer:

                 i

Explanation:

I need help with number 3​

Answers

O2 (oxygen) is a covalent compound

Will the hurricane gain strength or lose strength if it moves from warm water to cold water? Explain in 3-4 sentences

Answers

Answer:

Explanation:

As long as the base of this weather system remains over warm water and its top is not sheared apart by high-altitude winds, it will strengthen and grow. More and more heat and water will be pumped into the air. The pressure at its core will drop further and further, sucking in wind at ever-increasing speeds. Over several hours to days, the storm will intensify, finally reaching hurricane status when the winds that swirl around it reach sustained speeds of 74 miles per hour or more.

:'(

HELP 100 POINTS TO WHO CAN HELP


HOW DOES THE MEIOSIS PROCESS WORK ?

What is different between meiosis and mitosis?

Whats the different between haploid and diploid?

Answers

Answer:

Meiosis is broken down into several stages. Each cell in the process of meiosis involves the cell growing, dividing, splitting, and dividing again in order to produce the four cells at the end of the process. This cellular process is one of the more common processes of biology, but it is also the reason why people have some traits over others.

Explanation:

The difference between mitosis and meiosis is in the process by which each form daughter cells from a parent cell. Mitosis has one round of cellular division and genetic separation whereas meiosis has two rounds.

The key difference between haploid and diploid is that haploid is the state of having half the usual number of chromosomes while diploid is the state of having the usual number of chromosomes in the genome of a cell.

What structure is responsible for the suction created by the
starfish's tube feet?

Answers

I believe it’s A or the first answer. Hope this helps :)

What typc of molecule is shown in the diagram?

Answers

It's B. Carbohydrates

I’ll give out freee 50pints if someone helps with this and brainliest

Answers

Answer:

Newton's law also states that the strength of gravity between any two objects depends on two factors: the masses of the objects and the distance between them. Objects with greater mass have a stronger force of gravity between them

Explanation:

Answer:

The mass of the objects and the distance between them.

Explanation:

The more mass two objects have, the greater

the force of gravity the masses exert on each other. If one of the masses

is doubled, the force of gravity between the objects is doubled.

Can i pls have brainliest

Which is NOT a function of lipids?

1.Absorption of Vitamins
2.Genetic Storage
3.Insulation/Cushioning
4.Energy

Answers

Lipids don't store genetic informations so the answer is 2

they absorb liposoluble vitamins they offer insulation/cushioning they store energy

How would a geologist use absolute dating to determine the age of sedimentary layers? by dating the age of intrusions and extrusions near a sedimentary rock layer by comparing the relative ages of several sedimentary rock layers by identifying fossils in nearby intrusion and extrusions and determining their age

Answers

Answer:

Radiometric dating methods

Explanation:

Absolute dating is the process of determining an age on a chronological or specified time scale in which events occurred in archaeology and geology. Absolute dating can be determined by using properties of the atoms that make up materials.

The most common method of absolute dating uses by geologists is radiometric dating methods which is based on the natural radioactive decay of certain elements such as potassium and carbon found in the rocks. By comparing the ratio of parent isotope with a known half-life to daughter product in the rock, the age of the rock can be determined.

The carbon-14 isotope is used in radiocarbon dating, but is only useful for measuring recently formed rocks in the geologic past. The decay of Potassium-40 isotope known as potassium-argon (K-Ar) method allows dating of materials that up to 1,000 billion years old.

Answer:

by dating the age of intrusions and extrusions near a sedimentary rock layer

Explanation:

got it right on the assighment

This stuff annoying!!!!!!!!!!!!!!!!!!!!

Answers

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What do eukaryotic cells have that prokaryotic cells do not?

Answers

Answer:

The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles.

Explanation:

Which change will cause the gravitational force between a baseball and a soccer ball to increase?

A. moving the balls farther apart

B. wrapping the soccer ball in layers of duct tape

C. using a baseball with a thinner leather

D. removing the outer layer of the baseball

Answers

Answer:

I think the answer is B I'm not for sure though tell me if I'm wrong

Answer:

Wrapping the soccer ball in layers of duct tape.

Hello everyone. I hope someone know the answer to this. because I really hate biology is there anyone out there who is really good at biology?? thank you. I'll also give a brainliest

Answers

Answer:

I don't see a question....

I don't like Biology either It hard and super confusing...

Photosynthesis and cellular respiration differ in which of the following
ways?
O The main source of chemical energy in cellular respiration is water.
The energy conversion in cellular respiration takes place in the chloroplast.
O The main source of energy in cellular respiration is glucose.
The final product of cellular respiration is electromagnetic radiation.

Answers

Answer:

the main source of energy in cellular respiration is glucose.

Explanation:

photosynthesis creates glucose out of co2 h2o and sunlight. while cellular respiration is almost exactly the opposite.

The ways in which photosynthesis and cellular respiration differ is that the main source of energy in the case of cellular respiration is glucose. Hence, Option C is the correct answer.

The photosynthesis and cellular respiration processes are interlinked with a significant relationship. The products of one process act as reactants in the other. Some of the significant differences between both processes are mentioned as follows:

Photosynthesis takes place only in phototrophs such as plants and algae while cellular respiration can take place in all the living forms. Photosynthesis completely takes place in chloroplasts and cellular respiration in Mitochondria. Glucose is made by the process of photosynthesis while glucose is utilized in cellular respiration to make molecules of ATP.

Thus, we can conclude that photosynthesis and cellular respiration differ specifically by the main source of energy. Hence, option C is the correct answer.

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Based on the graph in Figure 2, identify the environmental conditions (flower density AND proportion of deep flowers) where a short- tongued bee has the greatest relative advantage over a long tongued bee. Based on the graph in Figure 2, identify the range of proportion of deep flowers at which a long tongued- bee always has an advantage over a short tongued bee.

Answers

Answer:

The correct answer would be - low flower density and low deep flower proportion

Explanation:

To find the environmental conditions for a short-tongued bee has the greatest relative advantage over long-tongued bees it is required to find the highest value of relative advantage short-tongued bees has on long-tongued bees which is the point where flower density and deep flower proportion is lowest (near the zero) according to the graph. That is represented in the graph by the peak in the white shaded portion.

To find the range of deep flower proportion at which a long-tongued bee has an advantage take a closer look to the grey shaded area where if the deep flower proportion move from 0.6 to 1 the advantage of long-tongued bees over short-tongued.

Floral density with the graph shows the low flower density and low deep flower proportion. Floral density often influences the species composition of flower visitors.

This variation in visitor species composition has significant effects on pollination success and plant fitness, poorly understood, especially in the many pollination guilds dominated by non-territorial species.

How do flower visitors diverse the traits?

It explores how flower visitors with diverse traits should distribute themselves across resource patches differing in floral density.

The model predicts that species with low flower search speeds and low flower handling costs compared to competitors will usually dominate dense flower patches.

In addition, amongst flower visitors that have lower energy expenditure rates while handling flowers than while traveling, species maximizing energetic efficiency are associated with dense flower patches.

Therefore, the correct answer is low flower density and low deep flower proportion.

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According to ___________________, processes occur today as they did in the past.

Answers

Answer:

Uniformitarianism

Explanation:

The inner layer of the brain is the: A. Thinking brain
B. Emotional brain
C. Primitive brain
D. Understanding brain

help!​

Answers

Answer:

The understanding part of da brain

Explanation:

Answer:  D. Understanding brain

Explanation:

:)

Set of 25 green plants and 25 mushrooms were put in a cool, dark room for two weeks. Each set was watered daily with 50 mL of a 0.1% fertilizer solution. Which statement best explains why the green plants died and the mushrooms survived?

Answers

Answer:

This question lacks options, however, it can be answered based on general understanding.

The green plant died because of absence of LIGHT

Explanation:

Plants (green) are autotrophic organisms i.e. organisms that are capable of synthesizing their own food via a process called PHOTOSYNTHESIS. However, on the other hand, mushrooms (kingdom FUNGI) are heterotrophic organisms i.e. rely on other organisms for energy source and cannot make their own food.

Green plants strictly require light energy from the sun in order to perform the process of photosynthesis. According to this question, a set of 25 green plants and 25 mushrooms were put in a cool, dark room for two weeks and watered daily with 50 mL of a 0.1% fertilizer solution. The green plants, despite the nutrients and regular watering dies because they were not exposed to LIGHT in order to make their food via photosynthesis. However, since light is not a requirement for mushrooms to obtain food, they will surely survive.

How are limiting factors related to carrying capacity?

Answers

limiting factors affect carrying capacity.

hope this helps!
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The value 9 is 200% of what number? What are 5 negative coping strategies for stress Which type of fire can be put out with water?out of chemical, electrical, grease, and paper. what kind of those fires can be put out with water ? what did catholic people do to keep away from disasters in medieval times? HEY YOU! can you help me ? The figure shows three quadrilaterals on a coordinate grid:A coordinate grid is shown from positive 8 to negative 8 on the x axis and from positive 8 to negative 8 on the y axis. An image of a rectangle labeled E is shown on ordered pair negative 1, negative 1 and negative 3, negative 1 and negative 3, negative 2 and negative 1, negative 2. Another image of a rectangle labeled G is shown on ordered pair negative 2, negative 2 and negative 6, negative 2 and negative 6, negative 4 and negative 2, negative 4. Another image of a rectangle labeled F is shown on ordered pair negative 1, 1 and negative 1, 2, and negative 3, 2 and negative 3, 1.Which of the following statements is true about the three quadrilaterals? E and F are similar but not congruent. E and G are similar but not congruent. G and F are similar and also congruent. E and G are similar and also congruent. what traits do viruses share with living things? please help me with the question help please ! -3 + x/3 = 15What is x? Which of these is an opinion?HintADoctors ran a new study about teens and hearing loss.BDr. Gary Curhan was in charge of the new study.Some teens with hearing loss can't hear whispersDParents are wrong to let kids listen to loud music, What is the average speed of a soccer ball that travels 34 m in 2s? Help I forgot! How do you find slope? I have the change, but need the slope! Two of the side lengths of a triangle are 19 cm and 29 cm. If the third sidelength is also an integer, what is the largest length it could be? hellllppp please help me The graph of p(x) = 4(x - 1)2+8 will be translated 10 units down, producing the graph of g(x).Which equation represents the new function, 9(x) Triangle B is a(n) ______________________ of Triangle A?A) ReductionB) Enlargement Holly needs to buy some cloth. The following deals are available at various stores. Choose the best deal.$16.52 per 6 yd$13.85 per 5 yd a$16.52 for 6 yd b$13.85 for 5 yd cNeither Can exponents be integers Joys grandmother cans homemade applesauce around the holidays to raise money for the local foodbank. She earns a profit of $2.79 for each jar she sells. Author's Purpose And respondingfairies at play is a children's book about fairies and the games they playauthor's purpose _______you're responding _______(pursue inform entertain)