Edxcel alevel biology past papers: some of the blood plasma of individuals who have survived infection wtih Ebola can be collected. This can be used in the treatment of individuals currentlty infected with Ebola. Explain why the blood plasma from survivors can be used to treat new cases of Ebola infection.

Answers

Answer 1

Answer:

This was the only treatment options adopted for the Ebola in  1995 in the Democratic Republic of Congo. The assumption was that immune response is generated by the virus in the WBC of the infected individuals. These response produce antibodies.

A total if 8 patients were transfused with these blood contained antibodies, but one of these died, the remaining 7 patients survived.

The antibodies were believed to  have  multiplied(produced b-cells) to neutralize the Ebola virus(antigens)  and to ensure the survival of the patients

Explanation:


Related Questions

An ecosystem is defined as a collection of living things interacting with other living things
True or false?

Answers

Answer:

true

Explanation:

Answer:

TRUE is the correct answer....

Thank you ☺️☺️

The passage of genetic instructions from one generation to the next is known as what?

Answers

Answer:

heredity

Explanation:

Answer: heredity because it is

Which of the following is NOT part of the Cell Theory?

Answers

the answer is c hope this helps
it is accepted that cells contain DNA in chromosomes and RNA in the nucleus and cytoplasm, but only in the modern cell theory. the classical cell theory does not include this. but using either classical or modern theory, it is false that all cells have DNA surrounded by a nucleus.

Fasttttttttttttttttttttttttttttttt 15 points

Answers

Answer:

the right answer is C.

Explanation:

cos there is an obstruction which made d voice 2 bounce back plz give me brainiest

In pea plants, the allele for round seeds is dominant to the allele for wrinkled seeds. If a plant that is heterozygous for seed type is crossed with one that has only homzygous wrinkled seeds, what percent of their offspring would you expect to have wrinkled seeds?

Answers

Answer:

50%

Explanation:

According to this question involving a gene coding for seed shape in pea plant, the allele for round seeds (R) is dominant to the allele for wrinkled seeds (r). This means that a heterozygous pea plant (Rr) will have a round seed shape.

If a plant that is heterozygous for seed type (Rr) is crossed with one that has only homzygous wrinkled seeds (rr), the following gametes will be produced by each parent plant:

Rr - R and r

rr - r and r

Using these gametes in a punnet square (see attached image), the following proportions of offsprings will be produced:

Rr, Rr, rr and rr

Rr = round seed offsprings

rr = wrinkled seed offsprings

Since 1 out of 2 offsprings has wrinkled seeds, 1/2 × 100 = 50% is the percentage of offsprings expected to have wrinkled seeds.

What do you think might be some factors that designers an
engineers would have to consider when they plan a sea wall?

Answers

they need to be careful to not harm the sea animals in the ocean and make the sea walk safe so there no pollution etc hope this helps

True or false: Through the power of Tradition and the Magisterium, the Church can contradict the teachings of Jesus.

Answers

Answer:

Explanation:

True

Answer:

False because The Curch can't contradict the teaching of jesus, contradict is just a different way of saying "deciding" so the church can't decide what should jesus is or be or anything!

what are the possible phenotype of the offspring from the cross of the parental generation?​

Answers

Answer:

Explanation:

maybe brown eyes dominate more

PLZ HELP ASAP!!! I WILL NAME BRAINLIEST!! Yo me llamo Karina

Which terms describe humans' roles in a food web?
Select one:
a. producers, autotrophs
b. consumers, autotrophs
c. consumers, decomposers
d. consumers, heterotrophs

Answers

Answer:

d. consumers, heterotrophs

Explanation:

Answer:

d. consumers, heterotrophs

Explanation:

Humans cannot be producers since we do not make photosynthesis (our own energy/food), we need to consume food in order to have energy. Therefore, we can't be autotrophs. We are also not decomposers because we don't eat dead animals like for example a vulture.

What was the most important invention to marine science?

Answers

The invention of the marine chronometer by John Harrison in the middle of the 18th century made true ocean navigation possible.

1. What is exponential growth?

Answers

Answer:

Exponential growth is the rapid growth of biological organisms. This usually happens when the amount of resources is unlimited in a habitat, therefore creating more and more organisms which increases population.

hope this helps :)

Explanation:

What do bacteria have in common with the cells of other living organisms?

Answers

Answer:

Bacteria have cytoplasm and chromosomes which are common with the cells of other living organisms. Some bacteria have whip-like which is flagellum which helps bacteria cells have prokaryotes which mean the DNA is not being held with the nucleus like cells of plants and animals.

Explanation:

Which is not a property of water?
-The solid state is less dense than the liquid state.
-Hydrogen bonds exist only in the solid state.
-It is polar.
-It has a high surface tension.​

Answers

Answer:

All of the above.

Explanation:

This is a trick question. All of the above is right. Ice has a bond of hydorgen, water is polar, and on top of that ice can float on water, making it less dense than water. If there is an all of the above awnser choose it. If there isn't then the best guess will be B.

Does the moon rotate? If so, which time frame below correctly identifies the amount of time the moon takers to make one, complete rotation.

Answers

Answer:

D} Yes, it takes about one earth month.

Explanation:

The Moon does spin on its axis a rotation once every 27 days so if theirs 29-31 days in each month it would be almost one earth moth so there for its D.

{Hope this helps} : )

Question 23 (Mandatory) (1 point)

In an effort to maintain homeostasis, the human body will take monomers named

glycerol and fatty acids (3) to build polymers called triglycerides. In addition, the

body will break down triglycerides when the body needs more energy. What type

of organic compound are being described? (AKS 151)

a) nucleic acids

b) lipids

Breakout

c) proteins

d) carbohydrates

You w

Answers

Answer:

The correct answer is - option b) lipids

Explanation:

Lipids are one of the nutrients that are necessary to the body of an individual organism as it plays role in different ways such as energy storage, cell signaling, component of the cell membrane and many more hat maintain homeostasis in organisms body.

These nutrients are made up of fatty acid and glycerol long chains so these are polymer of glycerol and fatty acid and called triglyceride which provides maximum energy in comparison to other nutrients in need.

Thus, the correct answer is - option B) lipids.

What type of solution is this cell in?

Answers

it’s D because they all 50 which makes them the same

Which occurs during digestion?
O The mouth only allows for physical digestion,
O The mouth only allows for chemical digestion.
O Chemical digestion prepares the food for physical digestion.
O Physical digestion prepares the food for chemical digestion.​

Answers

Answer:

D

Explanation:

took test

Answer:

d

Explanation:

Which table shows the most likely process and agent of erosion responsible for this rounded
sediment?

Answers

Answer:

B

Explanation:

They settle mostly in ocean an seas

During the replication process, which enzyme(s) unwind(s) the double-stranded DNA?
DNA polymerase
DNA gyrase and topoisomerase
DNA primase and helicase
DNA ligase

Answers

Answer:

The correct answer would be C) DNA primase and helicase

Explanation:

DNA primase and helicase unzip and uncoil a small portion of the double-stranded DNA, creating what is often called the replication fork.

Ignore the top answer, its wrong. I took the test.

Answer: The correct answer is DNA primase and helicase

Explanation:

I took the test

Please help! (in picture)

Answers

Answer:

Organisms 1 and 2 only because they both have a nucleus

Help!!!
What structures could you see under high power that you could not see under low power?

Answers

Answer:

The field of view is widest on the lowest power objective. When you switch to a higher power, the field of view is closes in. You will see more of an object on low power.

Northern Arizona University › lessons

Microscope Notes

Answer:

The depth of focus is greatest on the lowest power objective. Each time you switch to a higher power, the depth of focus is reduced. Therefore a smaller part of the specimen is in focus at higher power.

The amount of light transmitted to your eye is greatest at the low power. When you switch to a higher power, light (and therefore resolving power, or the ability to distinguish two nearby objects as separate) is reduced. Compensate with the light control (sometimes called the iris diaphragm

hope this help! ^^

Based on the graph, which inequality is correct for a number that is to the left of -4?











wordsowrdsworsdssss

Answers

Answer:

7-<4

Explanation:

The movement of molecules down a concentration gradient through transport proteins in the cell membrane is a type of

Answers

Answer:

In cells, somemolecules can movedown theirconcentration gradients by crossing the lipid portion of the membrane directly, while others must pass through membrane proteins in a process called facilitated diffusion.

Explanation:

please mark as brainlist answers

What is another word for substrates in a chemical reaction?

(Or just tell me if the answer "reactants" is correct)

Please don't use any dictionary app or site for this. Thanks

Answers

The answer is Reactants

What is Creatine Kinase? What is it used for in our muscle cells?

Answers

Answer:

This test is used to find damage to muscles in your body, including your heart muscle. Creatine kinase (CK) is an enzyme found in your muscles. Enzymes are proteins that help your body's cells do their jobs. The level of the CK enzymes rises when you have damage to muscle cells in your body

Explanation:

A. tissues in which similar cells function together.
B. organs to help carry out a specific function
C. systems that are responsible for a specific function
D. organelles that carry out different functions.

Answers

Answer:

i think it's

c) systems that are responsible for a specific function.

hope it will help you........

Please mark Brainliest

What two words are missing from the definition of the word "cells" below? Cells are the ______________ ___________ of life.

Answers

Answer:

basic unit

Explanation:

Answer:

basic unit

Explanation:

Which star would be considered a Red Giant Star?

A) Star E

B) Star D

C) Star A

D) Star C

Answers

Star D because it is a far star from the others and it’s in the red Area which makes them big

Some famous red giant stars are Aldebaran and Arcturus. Our own star, the Sun, will eventually become a red giant star and expand several times its current diameter. One of the biggest red giants ever discovered is VY Canis Majoris, being around 1,400 times bigger than our Sun. However, the answer is Star D.

5. Which of the following statements best describes the response of finches to drought on the Galapagos Islands?
O A During drought, individual finches saw that large, hard seeds were the only available food. To crack these harder seeds, individual finches grew their beaks
larger, resulting in an increased average beak depth
OB During drought, finches struggled to open harder seeds All the scraping and pecking wore down their beaks, resulting in a reduced average beak depth
OC. During drought, only finches with larger-than-average beaks were able to crack the hard seeds that were available. These finches survived while smaller-
beaked finches died, resulting in an increased average beak depth in the population
O D. During drought, finches with smaller beaks (and smaller bodies) had an advantage. With reduced food supplies, larger finches (with larger beaks) were
more likely to starve. The result was a decrease in average beak depth

Answers

Answer:

it is c got it right on the quiz

Explanation:D hope this helps

A. During drought, individual finches saw that large, hard seeds were the only available food. To crack these harder seeds, individual finches grew their beaks larger, resulting in an increased average beak depth

How large beak finches survive drough condition?

During drought, finches with larger beaks survive because they were able to crack the hard seeds that were available in the drought situation while on the other hand, the smaller beaked finches died due to unavailability of food which result in an increased average beak length in the population.

So we can conclude that option A is the right answer.

Learn more about drought here: https://brainly.com/question/12686086

please help i’ll give brainliest??

Answers

i wanna say that it’s A.) eggs, sperm, zygote
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