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lawyer [7]
3 years ago
13

Which lipoprotein carries cholesterol to the cells in your body

Biology
1 answer:
Scorpion4ik [409]3 years ago
3 0

Answer:

high-density lipoprotein

Explanation:

HDL (high-density lipoprotein) cholesterol, also called the "Good cholesterol"  carries your cholesterol in the blood back to the liver, where it is broken down into smaller pieces.

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Identify the model that best represents the plasma membrane of a hypothetical cell that exists in a nonaqueous environment and w
Klio2033 [76]

Answer:

The models are missing in the question. The models along with the question is provided in the attachment below.

The answer is : Model A represents the Plasma membrane.

Explanation:

According to the question, model A represents the plasma membrane. The reasons are :

(a). In the model A, the bilayers consists of two leaflets of the amphipathic lipid molecules. Here the polar head groups is in contact with the intra cellular or the extra cellular non aqueous phase, where the non polar tails are facing each other constituting the hydrophobic interior of the membrane.

(b). Lipid are not rigid as well as static structure. In the lipid bilayer, the lipid molecule are able to rotate around their axis freely and diffuse laterally with each leaflet.

(c). The plasma membrane acts as the selective plasma membrane.

8 0
3 years ago
Define the term cell differentiation and describe its importance to an organism
Aleksandr-060686 [28]

Cellular differentiation describes how different cells perform different processes and have unique functions. There are at least 250 cells in the human body and each one plays a different role, and <em>all</em> of them are crucial to the body's ability to maintain homeostasis. For example, liver cells produce proteins that are important in blood clotting. If these cells are damaged, blood will not clot properly. If blood does not clot, a body cannot maintain homeostasis and the person will fall ill.

TL;DR: every cell plays its part and keeps the organism alive.

5 0
3 years ago
What reptile is the most vocal with some species able to communicate more than 20 distinguishable messages through sound alone?
EleoNora [17]
The most vocal reptile ARE THE CROCODILES.
Crocodiles use different types of calls, smells and water behavior to communicate with one another. Scientists have discovered that some species of crocodiles can pass across up to twenty messages using sound alone. The sounds made can be used to signify threat, distress or it can be used to attract others for courtship purpose. Crocodiles also communicate through smells and through water behaviors.  
8 0
3 years ago
Read 2 more answers
Innate immunity
krek1111 [17]

Answer:

3. is activated immediately upon infection.

Explanation:

Innate immunity is the nonspecific immunity. These immune defenses are present at birth and do not involve specific recognition of a microbe. Being nonspecific in nature, it acts against all microbes.  Innate immunity includes the first and second lines of defense.

Some of the examples of components of innate immunity among the first line of defenses are physical and chemical barriers of the skin and mucous membranes. Innate immune responses are the immunity’s early warning system that is generated immediately after the encounter with a pathogen to prevent them from entering the body and to help eliminate the ones that have entered the body.

Once a microbe has entered the body, secretion of antimicrobial substances and activities of natural killer cells, phagocytes, the process of inflammation, etc. serve to eliminate it from the body. All these responses are the components of innate immunity.

8 0
3 years ago
According to one theory of color vision, colors are signaled in pairs by neurons that fire faster one color and slower to anothe
Advocard [28]

Answer;

Opponent process theory

Explanation;

-Opponent process theory suggests that color perception is controlled by the activity of two opponent systems: a blue-yellow mechanism and a red-green mechanism.

-The opponent process theory suggests that the way humans perceive colors is controlled by three opposing systems. We need four unique colors to characterize perception of color: blue, yellow, red, and green. According to this theory, there are three opposing channels in our vision; these are blue vs yellow, red vs green and black vs white.

3 0
3 years ago
Read 2 more answers
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