One of the many functions of ____ is to span the plasma membrane and form channels that allow passage of molecules and ions into and out of the cell.

Answers

Answer 1
Protein function includes spanning the plasma membrane to form channels, allowing for the passage of molecules and ions in and out of the cell. 

Depending on their location, membrane proteins may be involved with cell-to-cell signaling and interactions, and channeling of molecules and ions into and out of the cell. The transport of molecules and ions through the plasma membrane is done by passive and facilitated diffusion. Finally, membrane proteins located in the "face" of the membrane closer to the cytosol provide anchoring of the cytoskeletal proteins to the membrane for cell structure stability. 
Answer 2

Answer:

proteins

Explanation:


Related Questions

Which branch of biology deals with the study of insects?

Ornithology

Botany

Entomology

Phycology

Answers

Entomology is the scientific study of insects.

Approximately 70-80 percent of cancers in the aging population are the result of

Answers

Cigarette smoking and environmental chemicals

Tobacco smoke and certain environmental chemicals are known carcinogens (substances that can cause cancer in living tissue). The tobacco smoke from cigarette smoking contains harmful chemicals such as hydrogen cyanide, arsenic, ammonia, benzene, and many more. In fact, from 2009 to 2013, three out of 10 cancer deaths in the U.S have been attributed to cigarette smoking or exposure to tobacco smoke. 

Final answer:

Approximately 70-80 percent of cancers in the aging population are attributed to lifestyle factors, with diet, tobacco use, and alcohol consumption playing significant roles. Environmental components like radon and UV radiation also contribute to cancer risk.

Explanation:

Approximately 70-80 percent of cancers in the aging population are the result of lifestyle factors including diet, tobacco use, reproductive and sexual behavior, and alcohol consumption. Lifestyle choices are considered to cause about 75% of all cancers. Other behaviors that significantly contribute to cancer incidence include poor diet and physical inactivity, which are linked to high rates of obesity, further increasing cancer risk. Environmental factors such as the radioactive gas radon and ultraviolet radiation from the sun also play roles in cancer development, with radon increasing lung cancer risk and UV radiation being a primary cause of skin cancer.

Which of these bones is not a long bone found in the leg:?

Answers

Where is the list that you want us to choose from?

Patella is the shortest bone among the following bones. Femur is the longest bone of leg followed by tibia and Fibula. Thus, the correct option is A.

What is Bone?

A bone is a living tissue which makes up the body skeleton. These are made up of a framework of proteins called collagen, with calcium and phosphates. A bone is a connective tissue.

Bones store blood and lymph fluids. Bones work with muscles which holds body together and support freedom of movement. This complex system is called Musculoskeletal system.

The femur present in human legs is the longest bone identified. Tibia and fibula are the second and third longest bones in the human body. Patella is the largest sesamoid bone in human body present at the knee joint. This bone is shorter than the other three bones.

Therefore, the correct option is A.

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Your question is incomplete, probably the complete question/missing part is:

Which of these bones is not a long bone found in the leg?

A. Patella

B. Tibia

C. Femur

D. Fibula

The flexor hallucis longus muscle originates from the __________.

Answers

The Flexor hallucis longus originates on the lower 2/3 of posterior fibula, the tendon goes down, passes in flexor retinaculum, crosses the posterior ankle joint, enters the plantar surface of the foot and inserts at the base of the distal phalanx of Hallux.






Which type of dna produces a light band when treated with giemsa stain?

Answers

Euchromatin is the type of the DNA that produces a light band when treated with giemsa stain. Eurochromatin is not thickly populated region of chromosomes and this contains actively transcribed genes, hence do not bind Giemsa stain. Epigenetic modification may lead to formation of euchromatin.

Suppose you extracted dna from a cheek cell that contains two copies of the same alu insert (one on each homologous chromosome). after 30 cycles of pcr, how many total copies of this region would be produced (assuming successful amplification)? show your work.

Answers

After n cycles of PCR = 2^n copies of the target sequence

Where n = 30 cycles as given in the problem.

Substituting this to the identified formula, let 

2^30 1,073,741,824 copies of the target sequence. 

 

Therefore, a total of 1,073,741,824 copies would be produced.

when does cellular respiration occur? are there any situations where living cells are not respiring?

Answers

Cellular respiration consists of different process as glycolysis. Krebs cycle and electron transport so that an energy in the form of ATP extracting in the process of cellular respiration in the food you eat. All organism undertake the first step which is glycolysis. 
Cellular respiration goes on all the time, it involves an intake oxygen and glucose in order to create energy. Respiration is important because without it you would'nt  be alive because you need oxygen for you to live.

Yes. it has a situation where living cells are not respiring, for example, the microbial cells that live in anaeboric environments in certain environments will use fermentation rather than respiration to produce ATP. An example is yeast cell in beer mash.

What is a diagnostic sign for meningitis marked by the person's inability to extend the leg completely when the thigh is flexed upon the abdomen and the person is sitting or lying down?

Answers

The answer to this question would be: Kernig sign

When doing Kernig sign, you put the thigh in flexed position about 90 degrees from abdomen then trying to extend the leg. The test is positive if the patient is complaining pain or trying to prevent the leg movement.

What do hypotheses, theories, and laws have in common?

Answers

Hello there!

The hypotheses, theories and the laws have in common in explanation.


"
Each of them are trying to provide the steps to guarantee a valid experimentation. You cannot have a valid experimentation without each of these."


Have a nice day! 

Which question can be answered by science? A. Is it acceptable to make people recycle grocery bags? B. How much water is used to produce one paper bag? C. Should the government regulate the use of grocery bags? D. Is it right for stores to provide plastic bags for free?

Answers

B. How much water is used to produce one paper bag? Let me know if this helps.
B. How much water is used to produce one paper bag

Explain how the amount of direct sunlight hitting a location near the equator would be different than a location near to one of the poles

Answers

The amount of sunlight hitting an area near the equator would be more direct and hotter in temperature, rather than hitting the poles. Since the sun hits the most direct at the equator, the poles will not get as much sunlight because they are much farther away from the equator.

Increased activity in the ________ during rem sleep may best explain why dream images are often accompanied by a strong emotional tone.

Answers

The limbic system is most likely responsible for emotional responses in REM sleep. Within this system are the amygdala, hipocampus, thalamus, hypothalamus, basal ganglia, and cingulate gyrus. Respectively, these are responsible for such reactions as: emotional response, the memory center, learning, changes in emotional reactivity, physical movements, and smells, sights, reactions to pleasant memories, reactions to emotional pain, and regulation of behavior.

A scientist measures the weight of two different animals one is 250 grams and the other is 330 grams in milligrams what is the difference between the two weights of the animals

Answers

for the first animal: 250x1000=250000 mg

for the second animal: 330x1000=330000 mg

to find the difference: 330000-250000=80000 mg (which is your final answer)

Which of the following is not a major function of the roots?

Answers

The photosynthesis is not a major function of the roots. The biological process photosynthesis primarily occurs in the leaf of the plants, not in their roots. So, the roots are not involved in the photosynthesis process. Also the transport of materials throughout the plant is not a major function of the roots.

Unlike the other eating disorders, binge eating disorder does not necessarily begin with:

Answers

Binge eating disorder doesn’t usually begin with loosing weight.

When someone has a binge-eating problem, they frequently experience bouts of eating disproportionately huge amounts of food and lose control over their eating.

What are the main characteristics of eating disorders?

People who have Avoidant Restrictive Food Intake Disorder (ARFID) may exhibit extreme pickiness in their eating habits.

Which can result in severe weight loss or nutritional deficiencies, but they may never voice worries about their appearance.

Periods of binge-eating are not followed by purging, strenuous exercise, or fasting, unlike bulimia nervosa.

Australian teenagers who diet are five times more likely than those who don't to develop an eating disorder.

Therefore, binge-eating disorder doesn’t usually begin with losing weight.

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Where in the ocean are you likely to find animals that make their own light?

A. The mesopelagic zone
B. The continental shelf
C. The epipelagic zone
D. The Gulf Stream

Answers

A. The mesopelagic zone.

The mesopelagic zone is extremely dark so animals with light are more likely to be found their.

Answer: Option A

Explanation: The second zone that is found in the ocean is the Mesopelagic zone. This zone lies from 651 to 3300 feet.

This zone has very less light as sunlight cannot penetrate upto this distance. There are hardly any plants founds in this zone and the animals here has the property of bioluminesence. This property produces light from the skin of the organism to distract the predators.

The common fishes and organism found here are giant squid, cuttle and some other molluscan.

Does this experiment show that cd4 is the only membrane protein required for hiv entry? does this experiment show that cd4 is the only membrane protein required for hiv entry? no, the experiment shows that hiv does not utilize cd4 as a receptor. yes, because unbound cells are infected by hiv. yes, because the antibody to a protein other than cd4 was used. no, because the experiment does not test other membrane proteins.

Answers

Yes because actually this experiment shows that CD4 was the only membrane protein needed for HIV entry since only CD4 had an antibody added to it and the result leads to no HIV could infect the cell. If other membrane proteins present that were required for HIV entry, then it would also have gotten infected.

 

Answer:

yes, because the antibody to a protein other than cd4 was used. 

Can a person who commits a tort be sent to jail as a result of his conduct?

Answers

Yes. A tort is an act performed by a person subject to law, that leaves them liable to federal infringement. This, in turn, possibly will put them in jail, depending on the offense performed by that person.

Hope this helped!

The nurse hears the ventilator alarm come from the room of a client who is receiving mechanical ventilation. when arriving in the client's room, which assessment does the nurse perform first?

Answers

I guess the nurse needs to *turn off the mechanical ventilation and then check on the patient.*
Brainliest answer?! Hope it helps..

A gecko is a type of reptile. How does a gecko most likely respond to cold air temperatures?

Answers

Their blood temperature goes down

Answer:

The answer is: D

Explanation:

by moving into the sun which is in response to an external stimulus.

Increase Energy Efficiency ultimately leads to lower cost. True or False?

Answers

TRUE increased energy efficiency leads to lower costs.

The statement that increase Energy Efficiency ultimately leads to lower cost is true. Energy Efficiency leads to both increased profitability and reduction of the CO2 emissions and thereby their environmental foot-print. Better recover and reuse of energy and easier maintenance are some of the things that lead do lower cost.

In the southwestern desert of the united states there are temporary ponds that form only after heavy summer rains. as a naturalist, you visit these ponds and notice that female frogs mate with males of their own species based only on their calls. the lack of mating between species would be an example of _____ and _____.

Answers

This is an example of post-zygotic isolation and behavioral isolation. Behavioral isolation is defined as a mechanism allowing members of a species to only identify one another as correct mates. Post-zygotic isolation, however, is when two members of different species mate and create a hybrid, infertile offspring, which is, of course, not desirable and rarely happens without human intervention.

The lack of mating between frog species based on calls in the southwestern US deserts is an example of prezygotic barriers and behavioral isolation. In the fish scenario, pollution might lead to an increase in hybridization. Temporal isolation is another prezygotic barrier seen in species with different breeding schedules.

In the scenario where temporary ponds in the southwestern desert of the United States form only after heavy summer rains, and female frogs choose mates based on calls, the lack of mating between species would be an example of prezygotic barriers and behavioral isolation. Prezygotic barriers prevent different species from reproducing and producing offspring. Behavioral isolation is a type of prezygotic barrier where two species do not mate because of differences in courtship behaviors, such as mating calls in frogs.

If we look at the hypothetical situation with two species of fish that had recently undergone sympatric speciation and identified mates through color, and then pollution made it hard to distinguish such colors, it's possible that an increase in hybridization might take place due to the females' inability to accurately choose mates from their own species.

Another type of prezygotic barrier is temporal isolation, which is when two species reproduce at different times of the year and thus do not have the opportunity to interbreed. For example, two species of frogs may live in the same area, but if one breeds from January to March and the other from March to May, they would not mate with each other due to the difference in breeding schedules.

What scientific tool helped in the development of cell theory?

Answers

Microskope helped a lot

Upon assessing the client's jaw, the nurse finds decreased range of motion and notes crepitus. what would the nurse suspect?

Answers

The nurse should suspect of a fractured jaw.

The crepitus is a common sign of bone fracture and it's heard when the fractured surfaces of two broken bones rub together.
Also If there is a severe jaw fracture, the patient might experience limited ability to move the jaw or be unable to move it at all.

The serous membrane covering the stomach and most of the intestines is called the?

Answers

Peritoneum. 

Hope this helps!
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Final answer:

The serous membrane covering the stomach and most of the intestines is known as the peritoneum. This epithelial structure, supported by connective tissue, envelops abdominal organs and has a role in reducing friction between organs.

Explanation:

The serous membrane covering the stomach and most of the intestines is called the peritoneum. This membrane is an epithelial layer composed of mesodermally derived epithelium known as the mesothelium, supported by connective tissue. The peritoneum envelopes the abdominal organs and forms double sheets of mesenteries that suspend many of the digestive organs.

The peritoneum is divided into two regions: the parietal peritoneum, which lines the abdominal wall, and the visceral peritoneum, which covers the abdominal organs. The space between these two layers forms the peritoneal cavity, which contains a few milliliters of watery fluid that acts as a lubricant to minimize friction between the peritoneum's serosal surfaces.

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A woman who does not take prenatal vitamins during the course of her pregnancy is at greatest risk for:

Answers

she is at a great risk for anemia 

​a strain or tear on any of the muscles that straighten the hip and bend the knee is known as a/an _____.

Answers

It's a hamstring injury. The hamstrings are the three posterior thigh muscles: semimembranosus, semitendinosus and biceps femoris. All three of them cross the hip and the knee joint and because of it, they help with the knee flexion and hip extension (straightening). 

Answer:

Hamstring injury

Explanation:

A Hamstring injury occurs when one or more of your hamstring muscles is strained or pulled. They are consist of three muscles that run along the back of your thigh.

Which part of an enzyme molecule binds to its associated substrate?

Answers

The part of the enzyme molecule that binds to its associated substrate is ACTIVE SITE.
The active site contains the catalytic groups which are amino acids which promote the formation and the break down of bonds. By breaking and forming new bonds, the enzyme substrate interaction brings about the formation of the transition state.

Hormones are ___________. chemicals released into the bloodstream by the endocrine glands chemicals found in the synaptic vesicles, which when released, have an effect on the next cell chemicals found in the soma, which when released, have an effect on the next cell chemicals released into the bloodstream by the brain

Answers

hormones are called chemical messengers

Cellular respiration is the process involved in the breakdown of glucose molecules in order to generate energy for cellular activities given the general reaction below which of the following best describes the products labeled X and Y

C6H12O6 + O2 → _x___ + __y___ + energy

A. The products are CO (carbon monoxide) and H2O2 (hydrogen peroxide), which then decompose into carbon dioxide (CO2) and wate (H2O)

B. The products are H2O (water) and CO2 (carbon dioxide), which then undergo anaerobic respiration

C. The products are CO2 (carbon dioxide) and H2O (water) which then become the reactants for photosynthesis

D. The products are O2 (oxygen) and H2O (water), which are then used for growth and to keep the organism hydrated

Answers

Answer:

The products are CO2 (carbon dioxide) and H2O (water), which then become the reactants for photosynthesis.

Explanation:

i took the test trust me.

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