Certain integral membrane protein of the erythrocyte was the first membrane protein to be sequenced and is highly glycosylated, a feature which is thought to be responsible for these cells repelling each other and not clumping together in blood vessels. That protein is:_______.

Answers

Answer 1

Answer:

Answer:

Glycophorin

Explanation:

The red blood cells possess the membrane-spanning proteins integrated into the cell membrane called glycophorins.

These glycophorins are composed of the sialic acid and the glycoproteins and these molecules allow the formation of the hydrophilic bonds. These molecules allow the easy circulation of the blood cells in the blood vessels without clumping in the vessel and interacting with the blood vessels.

Thus, Glycophorin is correct.

Related Questions

________are small membrane-enclosed compartments that bud of of the er and golgi membrane and may fuse with other membranes of the endomembrane system or plasma membrane.
Keystone SpeciesA keystone species is one whose presence contributes to the diversity of life and whoseextinction would lead to the extinction of other forms of life. A keystone species helps tosupport the ecosystem of which it is a part.An example of what can happen when a keystone species is removed occurred when furhunters eliminated sea otters from some Pacific Ocean kelp beds. Otters eat sea urchins,which eat kelp. With its major predator gone, sea urchin populations exploded andconsumed most of the kelp. Fish, snails, and other animals associated with the kelp bedsdisappeared.The grizzly bear is another example of a keystone species. Grizzlies transfer nutrientsfrom the ocean ecosystem to the forest ecosystem. The first stage of this transfer isperformed by salmon that swim up rivers, sometimes for hundreds of miles. Salmon are richin nitrogen, sulfur, carbon, and phosphorus. The bears capture the salmon and carry themonto dry land, scattering nutrient-rich feces (wastes) and partially eaten salmon carcasses.It has been estimated that the bears leave up to half of the salmon they harvest on theforest floor.One action humans can take that might ensure that these sea otters will continue their function asa keystone species in their environment is to(1) establish a sea otter wildlife refuge in the Atlantic Ocean(2) pass laws to regulate the hunting of sea otters(3) plant kelp in the Pacific Ocean(4) destroy sea urchins found living in the kelp beds
A student is drawing a model of the carbon cycle. Which caption should he include to explain how herbivores contribute to the carbon cycle from the food they eat?
The shape of the nucleus is maintained by
Match each point of view with the benefit it has in telling a story.first personThe reader can learn about severalcharacters' thoughts.It gives a personal feeling as thenarrator shares his or her thoughts.third personsecond personThe reader feels like he or she is beingaddressed by the writer

The aerobic system starts producing energy during prolonged periods of light to moderate exercise.

Answers

According to a source, the answer is said to be true.

Aerobic system exercise lengthens the goal and procedural healthy lifestyle to an extent. To ensure that your goals for exercising are achievable and safe, first go see a doctor to make sure that handle physical exercise. Next step is to define what you want to achieve by exercising and by doing so, you would know type of exercises you need. If you are a beginner, train under a certified instructor to ensure you are doing it right. Exercise at a level that you can do. Do not over train for it will do your body more harm than good. Make sure you eat properly and get enough sleep so that your body can recuperate from such strenuous activity.

the correct answer is true.

Match the following.1. The substance produced by body cells when there is not enough oxygen
mitochondria
2. The end product of glycolysis in the breakdown of glucose
pyruvic acid
3. Tiny sacs in the cell which may contain starch
adenosine diphosphate
4. Converted into ATP during glucose breakdown
lysosome
5. Packets within the cell cytoplasm that contain digestive enzymes
organelle
6. Structure within the cell responsible for the production of energy
plastid
7. A small structure within the cell which serves specialized functions
lactic acid

Answers

Answer:

1 = lactic acid

2 = pyruvic acid

3 = plastid

4 = adenosine diphosphate

5 = lysosome

6 = mitochondria

7 = organelle

The _____ theory is an evolutionary concept that suggests that behaviors that help an organism survive are passed on while weak behaviors are lost.genetic drift
gene flow
optimality
optional

Answers

Answer:

Option B, Gene flow theory

Explanation:

Gene flow induces genetic pool in a particular species of organism. It also leads to speciation and therefore allows species belonging to a particular species to mate and produce fertile offspring with distinctive genetic trait as compared to their parents.

This new set of genes created by frequent mating leads to creation of genepool. Genepool allows the fittest genetic trait to grow further so that the fittest individuals are produced and in this way the weak behaviour traits are lost with time.

Hence, option B is correct.

Answer:

gene flow

Explanation:

Scientific evidence documents the pattern of evolution. The evidence exists in a variety of categories, including direct observation of evolutionary change, the fossil record, homology, and biogeography. Sort the following examples into the correct categories.

Answers

Answer:

Direct observation of evolutionary change: creation of drug-resistant bacteria.

Fossil record: discovery of transitional forms of animals, discovery of shells of extinct organisms

Homology: similarities in mammalian forelimbs, identical genetic code in fireflies and tobacco plants, vestigial pelvis in right whales

Biogeography: resemblance of endangered island species to neighboring mainland species,

Direct Observation of Evolution:

Example: The development of antibiotic resistance in bacteria.

How can direct observation of evolution be observed?

Direct observation of evolution involves studying the changes in a population over a relatively short period of time. One example of direct observation is the development of antibiotic resistance in bacteria.

Scientists have observed that certain strains of bacteria can evolve resistance to antibiotics through genetic mutations and natural selection. By exposing bacteria to antibiotics in laboratory experiments, researchers can directly observe the process of evolution as the bacteria adapt and survive in the presence of the drugs.

Answers

The biggest difference between prokaryotes and eukaryotes is that eukaryotes have a nucleus. They also have other membranestructures called organelles. Both organisms are composed of cells, the basic unit of life, with each cell surrounded by a cell membrane.

If you cut your knee, pus, which is caused by _____, may form. medicinal material excreted by macrophages the death of macrophages pathogens trying to infect the area blood cells losing their hemoglobin

Answers

If you cut your knee, pus, which is caused by the death of macrophages may form.

Answer:

Death of macrophages

Explanation:

Pus is formed at a site of infection and consists of a protein-rich fluid which is often yellowish white in color.
This is caused because the immune cells that reach the site of infection, die and build up in the area.
These immune cells include neutrophils and macropahges.
When there is an infection, these neutrophils and macrophages reach the site of injury as they are a part of the innate immune system to control the infection and then when they die and if not cleared from the site of the infection, then a build-up of pus occurs.

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An organism has the following characteristics: cell wall, heterotrophic, unicellular, and prokaryote. What kingdom does it belong in?

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