Sickle cell anemia is an inherited form of anemia - a condition in which there aren't enough healthy red blood cells to carry adequate oxygen throughout your body.
Normally, your red blood cells are flexible and round, moving easily through your blood vessels. In sickle cell anemia, the red blood cells become rigid and sticky and are shaped like
sickles or crescent moons. These irregularly shaped cells can get stuck in small blood vessels. How does sickle cell anemia affect the blood flow in a human?

Answers

Answer 1

Answer:

RBCs are round red blood cells that easily move through blood vessels and carry oxygen with them to provide cells oxygen. In sickle cell anemia, the shape of the red blood cells is like sickles or crescent moons.

These cells occur due to mutation on the gene that produces this protein which results in rigid, sticky cells that can get stuck in small blood vessels and blocks the flow of blood, oxygen to parts of the body.


Related Questions

What are the "energy factories" within a plant cell?

Answers

mitochondria is the energy factors in a plant cell! hope this helps

Challenge question! Imagine the following situation. You receive a viral vector coronavirus vaccine that uses a specific adenovirus and your immune system mounts a strong immune response. At the same time, your friend receives an RNA coronavirus vaccine and also has a strong immune response. One year later a new coronavirus variant emerges and neither of the original vaccines protect people from this new variant.

A new viral vector vaccine is developed to the variant using the same adenovirus as before. In clinical trials, it is found that the new vaccine protects people that originally received the RNA coronavirus vaccine that your friend had but does not protect people that originally received the viral vector coronavirus vaccine that you had.

Question: Can you think of an explanation for why the new vaccine didn’t protect you, but did protect your friend?

Answers

Answer:

she took more care of her self and her immune system its more advance rather than the other person!

Explanation:

Due to being more careful meaningly taking care of not catching it, but also just cause you had it doesnt mean you're going to be carless "free" because you got the vaccine.

your friend could've been protected even though she had the vaccine she was not carless unlike the other person she thought about her actions.

Which factors affect the gravitational force between two objects?

Answers

Answer: The size of each object and the space between them.

When dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance. The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them.

Which of the following actions would decrease global warming?
Select one:
Decreasing the amount of methane in the air.

Increasing the amount of oxygen in the air.

Increasing the amount of water vapor in the air.

Decreasing the amount of nitrogen in the air.

Answers

Answer:

Decreasing the amount of methane in the air

Explanation:

Methane is a powerful greenhouse gas, which absorbs the sun's heat and doesn't allow it to escape therefore contributing to global warming

Decreasing the amount of methane in the air would decrease global warming. Therefore, option (A) is correct.

What is global warming?

Global warming is the gradual increase in the Earth's average surface temperature, primarily due to the buildup of greenhouse gases in the atmosphere, such as carbon dioxide and methane. These gases trap heat and prevent it from escaping into space, leading to a warming effect on the planet.

The consequences of global warming are far-reaching and potentially catastrophic, including rising sea levels, more frequent and severe weather events, loss of biodiversity, and impacts on human health and well-being.

To address global warming, it is essential to reduce greenhouse gas emissions by transitioning to cleaner and more sustainable sources of energy, improving energy efficiency, and adopting more sustainable land use practices. Addressing global warming requires a collective effort from individuals, communities, businesses, and governments around the world.

Learn more about global warming, here:

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10. What is an entomologist?

Answers

Answer:

An entomologist is a person who studies, or is an expert in the branch of zoology. (A branch in zoology concerned with insects.)

Explanation:

Justin wants to know how much gas his mother will save if he rides his bike to school rather than being driven in the car. For one month, Justin rides his bike to school. Every week, he asked his mother how much gas she put in the car. The next month, Justin had his mother drive him to school. Again, every week he asked her how much gas she put in the car. What could Justin do to improve this experiment?

Answers

Answer:

ask his mother?

Explanation:

Answer:

To improve the experiment, Justin should have created a hypothesis and could have repeated the experiment to see if the results were at least similar.

Explanation:

Hope this helps!

The theory of Proposed that sudden and widespread disasters that result in mass extinctions followed by repopulation could explain why species change over time

Answers

Answer:

Theory of Catastrophism

Catastrophism basically means Disaster.

According to Theory of Catastrophism, quick and widespread disasters lead to mass extinction (extinction of large number of species over time) followed by re-population after a notable period of time.

Which of the following is not a biotic factor?
A. Giraffe
B. Lion
C. Cactus
D. Wildebeest

Answers

Answer:

cactus

dudidjdidj jdudhd

In dolphins, to have spots on the skin is a recessive trait. One spotted dolphin and one solid gray dolphin have a baby spotted dolphin. Go through the following steps to figure out the genotype of the parent dolphins.

1) what is the genotype of the spotted (recessive) parent?

Answers

Answer:

the spotted parent has the genotype ss

Explanation:

we will use s as the letter when describing the spotted trait.

since spotted is recessive, that parents have to have two little s to have the trait. Since the child also has that, we know that they will have the genotype ss.  the child would have to get a little s from both parents, so the solid parent would have Ss, showing as solid, but still having the gene for spots.

There are thirteen species of finch found on the Galapagos Islands. These finches are commonly referred to as “Darwin’s Finches” and are a common example of natural selection and adaptive radiation.

Which question would MOST help a scientist determine the level of biodiversity, that exists among the thirteen species of finch on the Galapagos Islands?

Question 6 options:

What is the most common beak color among the finches?


How many finches are more than five years old?


Which species of finch has the greatest average mass?


What variation exists between the species for traits like beak size and shape?

Answers

Answer:

What variation exists between the species for traits like beak size and shape?

Explanation:

If the question is looking for biodiversity, the answer would include variation.

Which was not developed in the 1800s?


natural selection


germ theory


scientific method


cell theory

Answers

Answer:

germ theory

Explanation:

it was founded in the 19th century and founded by a man named Louis pasteur and robert koch who provided the final clue

Cell Theory is your answer

8.
Which one is a true fish
a) Cuttle fish
b) Star fish
c) Dog fish
d) Silver fish​

Answers

Answer:

Star fish

Explanation:

Answer is (b) Starfish

Define the following terms:

1. Shadow

2. Pinhole camera

3. Screen

Answers

Answer:

shadow

Explanation:

a dark area or shape produced by a body coming between rays of light and a surface

Can someone help me with this bio question plss!!!!!!!!

Answers

Answer:

it says that plants are the main source of nutrients and energetic materials and when the cow feed on them, it consumes some of the benefits that we miss when we eat beef

Answer:

Question 6: The answer is the energy, because it collects more energy than the cow. When the cow eats plants, the energy from the plant decreases leaving the cow with only little amount.

Question 7: I agree, Because plants holds way more nutrients and energy than meat. I could support that by saying when a herbivore eats from a plant, It only recieves 10%.

which processes lead to the formation of igneous rock?

A. Heat and pressure

B. Melting and cooling

C. Erosion and weathering

D. Compacting and cementing

Answers

B melting and cooling

Which agency is directly related to supervising and managing campgrounds

Us Forest Service

Bureau of land management

Us fish and wildlife service

National park service

Answers

National park service

Answer:

National Park Service

Explanation:

What is a swell wave?

Answers

Answer:

Swell are waves (usually with smooth tops) that have moved beyond the area where they were generated. The distance between the crests, or tops, of the waves that make up swell is usually much greater than the distance between waves being actively generated by wind blowing over the water.

Explanation:

ANSWER ALL QUESTIONS
Name four activities carried out in agriculture as an art​

Answers

Answer:

planting

measuring

weeding

harvesting

Explanation:

hope this helps

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n mark my answer

Which statement is most accurate about alternation of generations?
It involves changing the total number of chromosomes in a plant cell.
It refers to the haploid and diploid phases of the plant life cycle.
It refers to the processes of meiosis and fertilization.
It involves only some of the seedless vascular plants.

Answers

Answer:

It involves alternating haploid and diploid phases. alternation of generations is the term that is used to the life cycle that happens in plants and algae.

Explanation:

Answer:

B.It refers to the haploid and diploid phases of the plant life cycle.

Explanation:

answer this question.......asap​

Answers

C is the answer ( i apoligize if its wrong )

Which of the following best explains how the prokaryotic expression of a metabolic protein can be regulated when the protein is already
present at a high concentration?

Answers

Answer:

A. Repressor proteins can be activated and bind to regulatory sequences to block transcription.

Explanation:

its A

The best explanation for the prokaryotic expression of a metabolic protein is repressor proteins can be activated and bind to regulatory sequences to block transcription.

What are metabolic proteins?

Protein helps with growth and repair. Proteins have the potential to serve as a metabolic fuel source in addition to all of these important functions.

Excess proteins must be converted into glucose or triglycerides and used to provide energy or build energy reserves because proteins cannot be stored.

Thus, the correct option is A.

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Multiple Choice Which of the following events would cause local competition for fuel oil in a small American town?
imposing tariffs
drought
hurricane
sporting events​

Answers

The correct answer is D)

Answer:

The correct answer is D: Sporting events

Explanation:

I did it on edge 2022

Kudzu, a plant native to eastern Asia was introduced into America in 1876. In 1935, Kudzu was planted along southern roadways to control soil erosion. Adding a foot of vine a day in the spring and summer

kudzu quidity grew out of control. Why can introducing a new species to an existing ecosystem often be a disaster?

A The new species can create excess nutrients in the soil that can damage native species

The series can harminative anime and damage the ecosystem

Answers

Answer:

Due to lack of biological gent.

Explanation:

Introducing a new species to a new ecosystem often leads to a disaster because of the absence of bioagent for that species. Bioagent are those organisms which has the ability to control other organisms by feeding on them. A new species does not make problem in its old or original ecosystem due to the presence of controlling agents but in the new ecosystem there is no bioagent that can stop its growth so that's why sometimes the introduction of new species leads to a disaster.

DNA strands are antiparallel. What does that mean?

-opposite and parallel

-complete opposites

-mirror image of each other

-parallel of each other

Answers

Explanation:

In biochemistry, two biopolymers are antiparallel if they run parallel to each other but with opposite directionality (alignments). An example is the two complementary strands of a DNA double helix, which run in opposite directions alongside each other.

Answer:

opposites and parallel

Explanation:

From DNA to protein involves which series of events?Which of the following correctly describes the locations of transcription and translation within a eukaryotic cell?

Answers

Answer:

DNA istranscribed in the nucleus, then the mRNAtranscript is transported to the cytoplasm to be translated into protein.

Explanation:

I hope that this is what you were looking for

Describe three ways in which economies are
likely to be affected by climate change

Answers

Answer:

1. Climate change affect the geography within which economy of the world operate

2. It changes the comfortability of human within the global industry

3. Growth Zone is affected

Explanation:

1. Climate change affect the geography within which economy of the world operate: economic of the world are affected by change in climatic condition in the since that there is shift in the usual period of seasons. For example, taken Nigeria as a region in West Africa, rainfall is expected to start around March in almost all part of the country, however, due to climate change, some part don't still have rain till May. This causes a shift in farmers plan and affect the supply of farm produce to the local market and to the global market, in turn affecting the gross domestic product of the country.

2. It changes the comfortability of human within the global industry. Take for example, fossil fuel, it is part of human being to address some unfavourable conditions among which is climate change which causes global warming, during this period, the way industries and people uses fossil fuel are been changed and it have direct effect to global economy.

3. Growth Zone is affected: change in climatic condition changes world economy growth zones. Thus could be seen in transportation sector, when the water level is affected, international movement of cargoes by ship are affect and hence, some trades agreements are altered thereby changing the growth zone.

What is a pill bugs habitat

Answers

Answer:

The pillbug's main habitat is under mulch, fallen leaves, and rocks. Pillbugs are nocturnal and require humid conditions during the day. Pillbugs are generally found in soil with sowbugs, millipedes, and earthworms. Their preferred soil habitat is composed of organic matter and has a neutral to alkaline pH.

What is a basic function of a cell

Answers

Answer:

The answer is below

Explanation:

They provide structure and support, facilitate growth through mitosis, allow passive and active transport, produce energy, create metabolic reactions and aid in reproduction.

Hope this helps:)

Please help!!!! 20 points

Answers

Answer:

Producers: Leaves and the other plant thing (i don't know the name of it)

First-level consumers: Squirrel, grasshopper, rabbit, rat

Second-level consumers: Frog, rat

Third-level consumers: Fox, owl, snake

Herbivores: Grasshopper, rabbit, squirrel

Carnivores: Frog, fox, snake, owl

Omnivores: Rat

Define the following term:
1. Pinhole camera

2. Screen

Answers

Pinhole camera: a camera with a pinhole aperture and no lens

Screen:a fixed or movable upright partition used to divide a room, give shelter from drafts, heat, or light, or to provide concealment or privacy.
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