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densk [106]
3 years ago
13

What functions do proteins perform in the cell membrane?

Biology
1 answer:
kumpel [21]3 years ago
4 0

Answer:

A) they help transport some substances through the membrane.

Explanation:

The membrane proteins that span the bilayer of phospholipids help in the transport of polar, large and charged substances across the membrane. The nonpolar core of the membrane does not allow these charged and polar substances to pass through. Proteins serving as channels form pores to allow movement of the specific substances.  

On the other hand, carrier transport proteins of the membrane bind to the substances present at one side of the membrane and deliver them to the opposite side.

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In addition to nourishing the epidermal cells, the dermal blood vessels function in:_____.
shutvik [7]

The dermal blood arteries work in dermal papillae to hydrate the epidermal cells.

<h3>What are dermal papillae used for?</h3>

The term "dermal papilla" can also be (DP). It is described as the hair follicle of an epithelial progenitor cell's chemical and physical niche. The dermal papilla's main job is to produce the hair shaft and rejuvenate the cycling section of the hair follicle. Dermal papillae are important because they reinforce the bond between the dermis and epidermis and reduce friction-related damage in places that are often used. Moreover, The dermis has a rough appearance thanks to the papillae, which interlocks with the epidermis above it to reinforce the bond between the two layers of skin. The papillae produce epidermal ridges on the palms and soles. These epidermal ridges give rise to fingerprints.

To learn more about dermal papilla, visit:

<u>brainly.com/question/28214941</u>

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4 0
1 year ago
Explain e.o. wilson’s theory of island biogeography as it applies to environments other than islands physically surrounded by wa
laiz [17]

Today, any environment surrounded by other ecosystems that are unlike it is subject to Wilson’s theory of island biogeography. Because they are geographically isolated from other related ecosystems, these ecologies are referred to as "islands." Waterbodies divide tropical islands, but this idea also takes into account mountaintops, caverns, and other isolated ecosystems.

<h3>What is Wilson’s theory of island biogeography?</h3>
  • The biologist Edward O. Wilson and environmentalist Robert MacArthur published The Theory of Island Biogeography in 1967. It is widely considered as a foundational work in the ecology and biogeography of islands. The book was reissued by the Princeton University Press in 2001 as a volume in their "Princeton Landmarks in Biology" series.
  • The hypothesis that insular biota maintain a dynamic equilibrium between extinction and immigration rates was made more well-known by the book. An island's pace of new species immigration will decline as the number of species increases, while the rate of extinction of native species will rise.
  • Thus, MacArthur and Wilson anticipate that there will come a point of equilibrium where the rate of immigration and the rate of extinction are equal.

To learn more about The Theory of Island Biogeography with the given link

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4 0
1 year ago
Learning Competencies: 1. Explain how protein is made using information from DNA. 2. Explain how mutation may cause changes in t
olga2289 [7]

Answer:

The correct answer is -

1. protein synthesis or central dogma

2. leads to changes in the structure by changing in the codes which results in a decrease or loss of function.

Explanation:

1, Protein is made from the information coded in DNA base sequences by the two process protein synthesis that is also called central dogma. The two-process involve in this are transcription involves encoding the information present in DNA by mRNA molecule that codes the information in complementary sequence to DNA. which is then moved out of the nucleus and perform the translation with help of tRNA and ribosome to code the amino acid with help of triplet codes present in mRNA. These amino acids chain are called proteins.

2. Mutations can lead to change in the base sequences or deletion of the base which affects the structure of the protein and also leads to changes in an encoded protein or to a decrease or complete loss in its function or expression. Mutation can damage the cell or organism as it affects the gene expression of all cells of organisms.

7 0
3 years ago
Can you answer this?​
Viefleur [7K]
1 Down: Aorta
2 Down: Blood
3 Across: Circulatory
3 Down: Capillaries
4 Down: Oxygen
5 Across: Systemic
6 Across: Ventricles
6 Down: Valves
7 Across: Heart
8 Across: Veins

I hope this helps! Please give brainliest and thanks if you can
6 0
2 years ago
Organisms undergo many different processes in order to be able to store energy and utilize that energy. Through which of th
kondor19780726 [428]

Through "cellular respiration" process energy is stored in the form of glucose.

<u>Answer:</u> Option A

<u>Explanation:</u>

The series of metabolic reactions and mechanism take place in organism ranging from microscopic bacteria to large organisms cells in order to transfer biochemical energy from food nutrients (stored in glucose form which is transferred) to adenosine triphosphate (ATP) and then waste product is also released, the whole process is known as "cellular respiration".

The energy required for ATP synthesis extracted from the breakdown of foods and phosphocreatine (creatine phosphate). It is stored inside muscle cells because phosphocreatine is readily available to produce ATP quickly.

6 0
3 years ago
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