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Bingel [31]
3 years ago
8

What is the water cycle

Biology
1 answer:
Burka [1]3 years ago
8 0

Explanation: The water cycle is when water changes state of matter starting at water than evaporation ( water rising in the air) to condensation ( the formation of a cloud) to precipitation (when it rains) and than repeat. hope this helped.

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El encargado de materiales de su grupo debe ir a recoger los materiales.
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todos deben tener los materiales por si a alguien se le olvida un material

tu se lo prestes

Explanation:

por que es en equipo

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2 years ago
If the amino acin the protiens of 2 organisms are similar, why will their DNA also be similar?
ladessa [460]
If I’m not incorrect, DNA is made from amino acids
6 0
3 years ago
Glucose travels in the plasma or liquid part of
djverab [1.8K]

Answer:

Explanation:

Glucose is a sugar, highly soluble in water because it has lots of polar hydroxyl groups (-OH) which can form hydrogen-bonds with water molecules. These types of bonds are intermolecular forces which are present in other macromolecules like the DNA or proteins.

Cholesterol and triglycerids are lipids. These have long chains of hydrocarbons, which are non polar and therefore insoluble in water.

Blood is made of a solid and a liquid part. <u>The solid part contains cells</u>. <u>The liquid part (plasma), is made of water, salts, and proteins</u>. Glucose and cholesterol/triglycerids travel in the liquid part of the blood, in an aqueous environment. Because the lipids are not soluble, they need to travel with a carrier protein that keeps them protected from the surrounding water.

3 0
3 years ago
Question 15
zepelin [54]
I think it is compound, that is a I think so I might be wrong
3 0
2 years ago
Read 2 more answers
Explain the role of lipids, carbohydrates, and proteins in the cell membrane.
koban [17]

Lipids provide structure - allow the selective diffusion. Proteins provide structure - involved transport - involved in cell adhesion. Carbohydrates are involved in cell recognition - receptor complexes.

<h3>What is the function of lipids, carbohydrates, and proteins in the cell membrane?</h3>

The cell membrane is composed of a lipidic bilayer, cholesterol, proteins, and glucans incrusted in between.

⇒ Lipids

  • Phospholipids are amphipathic molecules.

  • They have hydrophilic heads facing the exterior and the interior of the cells and hydrophobic tails that arrange against each other in the interlayer space.

  • Lipids can easily change places with other lipids by lateral diffusion  and transversal diffusion.

  • Their function is to provide structure to the membrane and allow the diffusion of some selected small molecules.

⇒ Cholesterol

These lipidic molecules play a significant role in membrane formation and structure. They are embedded in the membrane in between phospholipidic tails.

⇒ Carbohydrates

Carbohydrates are significant energy store molecules.

Carbohydrates get attached to lipids and proteins on the outer side of the membrane (glycolipids and glycoproteins).

Complexes protein-carbohydrate are used to identify and differentiate the cell and work as receptors.

Carbohydrates are also involved in cell adhesion.

⇒ Proteins

  • Among the proteins, we can find integral proteins and peripheric proteins.

Integral proteins are permanently associated with the membrane. They accomplish many different functions such as substances transport, cellular receptors, and cellular adhesion, among others.

According to how they are incrusted in the lipidic bilayer, integral proteins might be,

→ Transmembrane proteins ⇒ they cross the two lipid layers of the cell membrane.                       

→ Monotypic integral proteins ⇒ they can be found tied to one of the lipidic layers.

Integral proteins provide structure to the plasmatic membrane.

Periferic proteins are in the internal or external surface but not incrusted in the membrane.

In conlusion,

  • Phospholipids are the basic elements of the cell membrane. They are arranged in two layers, and thanks to their motion properties, they allow passive transport (diffusion) of some substances.

  • Proteins provide structure, are involved in facilitated and active transport, and are involved in cell adhesion.

  • Carbohydrates are involved in cell recognition and in receptor complexes.

You can learn more about membrane composition at

brainly.com/question/15651273

#SPJ1

7 0
1 year ago
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