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Maksim231197 [3]
3 years ago
11

Choose the CORRECT statement concerning the cell membrane lipid molecules

Biology
1 answer:
VashaNatasha [74]3 years ago
6 0

Answer:

The correct statement concerning the cell membrane lipid molecules is that "energy is not expended during diffusion" (Option d)

Explanation:

Biological membranes are formed by two lipidic layers arranged with their hydrophilic polar heads facing the exterior and the interior of the cells, and their hydrophobic tails against each other. Membranes are fluid, which means that molecules that form it have the capability to move through it.  

Lipids can easily change places with other neighbor lipids by <u>lateral diffusion</u> in the same layer. This is passive diffusion, which means that it does not need energy to happen.

Lipids can also diffuse transversally to the other layer, but this kind of movement is not as easy as lateral diffusion.

There are also other lipidic movements as rotational diffusion that imply the rotation of the molecule.

Through this lipidic bilayer, there is also a passive transport of some particles from one side of the cell to the other which happens because of concentration differences.

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What is true of tectonic plates?
Lesechka [4]

Answer:

A. They are constantly moving

Explanation:

Plates are undergoing convergence at some point and divergence at other point you can understand through the example that the Eurasian plate and Indian plate undergone convergence and led to the formation of Himalayan mountains and the Tethys sea got vanished over a period of time but still the African and the Eurasian plates are undergoing convergence and the Mediterranean sea which is a remanent of Tethys sea over some million of years will be vanished and we'll find the same case that happened in Himalayan mountains.

We can consider one more example that is the Arabian plate that got separated from the African plate and now through the eastern rift valley region of Africa we can make out that the Somalian plate will get separate through the rest of the African plate over a period of time.

5 0
2 years ago
1 ♥
pantera1 [17]

The correct answer is option A. which states that the two functions of carbohydrates in plants are structural support and energy storage.

  • Cellulose is a polysaccharide which is made up of numerous glucose chains linked to each other.
  • It's main function is to provide a structural rigidity and support to the plants. It is also a constituent of the cell wall.
  • Starch is another polysaccharide which is serves as the primary source of food and energy for living beings.
  • Plants produce sugar through the process of photosynthesis using sunlight, carbon dioxide and water which is stored in the form of starch in plants.

Hence, the correct answer is option A. the two functions of carbohydrates in plants are structural support and energy storage.

Learn more about carbohydrates here:

brainly.com/question/11226727

#SPJ9

5 0
2 years ago
In an experiment, a scientist makes a radioactively labeled probe using human DNA. She then discovers that the probe hybridizes
wariber [46]

Answer: The correct answer is- A.The plant might have a gene that is similar to a human gene.

Probe can be described as the segment of DNA or RNA (generally 100-1000bp in length) that is designed and radioactively labelled to detect the presence of nucleotide sequences, which are complementary to it.

In this question, the probe is synthesised using sample of human DNA but it also hybridizes with the plant DNA.

This indicates that plant genome has certain DNA sequence or gene that is similar to the gene in the human DNA.

Thus, option A) is the right answer.

8 0
3 years ago
Read 2 more answers
Which is true of the population shown in this graph?
sineoko [7]
The statement that is <span>true of the population shown in the given graph is "</span><span>The population has increased until it reached its carrying capacity". The answer is letter C. The broken line shows the limiting capacity of the population as time increases.</span>
3 0
4 years ago
Read 2 more answers
Hi! i’ll give brainliest please help
Oksana_A [137]

Answer:

My Guess Is C if im wrong sorry

Explanation:

Just thinking logicaly

7 0
3 years ago
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