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AlexFokin [52]
3 years ago
5

Which of the following is true about the properties of aqueous solutions?

Biology
1 answer:
Setler79 [48]3 years ago
5 0

Answer: d. Hydrogen bonds forma readily in aqueous solutions.

Explanation: pH is a logarithmic scale which means that a change of 1 unit on it equlas a change of 1 order of magnitude (1, 10, 100 etc)in the concentration of [H+] or [OH-] depending on if we are talking of pH or pOH. So a its not correct. And b is not correct either because when pH decrease, H+ concentration increase.

On the other hand, water is a dipolar molecule so it has negative and positive charge and dissolves easily charged molecules. This difference in charge occurs because oxygen atoms have free electrons arround that make them negative and hydrogen atoms give electrons so they remain positive. Taking into account that opposite charges attract each other, the positive hydrogen of one molecule stay closer to oxygen of other because of charge affinity. Thats haw hydrogen bonds are formed and water facilitated them.

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What happens if a protein-digesting enzyme is mixed with starch solution?
Pie

Answer: it produce fat as it is base and starch is acidic

Explanation:

it produce fat as it is base and starch is acidic

These polypeptides then move into your small intestine, where digestion will be completed by additional enzymes.

Pepsin is an enzyme in the stomach that breaks down proteins into smaller amino acids. It is produced in the chief cells of the stomach lining and is one of the main digestive enzymes in the digestive systems of humans and many other animals, where it helps digest the proteins in food.

Hope it helps

3 0
2 years ago
Read 2 more answers
A porcupine has an internal skeleton and a rose has a stem. Write a sentence to explain how these physical structures have diffe
Reika [66]

The Internal skeleton of the porcupine gives shape and structure to the porcupine.

The stem of the rose plant provides support to the plant and serves to transport nutrient and water in the plant.

<h3>What a skeleton?</h3>

A skeleton is a rigid structure found in living organisms which provide structure and shape to the living organism.

Skeletons are found in animals.

Skeletons present in animals are of two types:

  • Internal skeletons also known as endoskeletons
  • external skeletons also known as endoskeletons

The Internal skeleton of the porcupine gives shape and structure to the porcupine. It also serves as a point of attachment to muscles in order to enable movement.

Stems are present in plants.

Stems serve various purposes in plants such as:

  • transport of nutrients and water
  • storage of food and water
  • provides support and structure to the plant.

Thus, the stem of the rose plant provides support to the plant and serves to transport nutrient and water in the plant.

In conclusion, the internal skeleton of animals and the stem of plants both provide shape and structure to the respective organisms.

Leran more about internal skeleton and plant stem at: brainly.com/question/840794

brainly.com/question/11171631

#SPJ1

6 0
2 years ago
Read 2 more answers
What would happen if all the major mountain ranges, particularly in the north hemisphere were gone? The Rockies, Himalayas, the
mylen [45]

Answer:

These big and hefty mountain ranges are play important role in weather and wind patterns in their related geographical region. Mountain ranges such as Himalayas, Rockies and Alps affects the weather and movement of wind on global level as well.

In absence of these mountains the global pattern of the wind can be affected and cause drastic change in global climate change as they play crucial role as barrier to wind and jet streams by diverting or dividing it.

For instance Himalayas, during the northern winters diverts the wind and acts as barrier for wind which prevents it from freezing. Rockies and Andies blocks the moisture laden winds flow from Pacific Ocean to western flanks of the american continent that leads to a dry region called rain Shadow desert zone.

Hence if these mountain ranges are gone these impacts will not be felt. Similarly Himalayas in India, cause monsoon wind to strike and cause rain in the region. So winds are greatly affected by these Mountains. If these mountain ranges were gone, winds will flow undisturbed as there would be no barrier to global wind patterns.

6 0
3 years ago
Hi! guys help me please?​
rusak2 [61]

Answer:

Nervous system: This systems helps the five sense organs (eyes, ears, nose, tongue, skin) which all contain nerves that send messages to the brain about what is happening. The brain produces a response which it sends via other nerves to the muscles.

Digestive system: This system helps to break down food into simpler substances so it can be used and absorbed into the body. It takes place in the alimentary canal (food tube), mainly in the stomach and small intestine. The digested food is absorbed into the blood.

Respiratory System: This system helps take in oxygen and removing waste carbon dioxide. Air enters the lungs by movement of the rib muscles and diaphragm. The oxygen is absorbed into the blood.

Reproductive system: This helps produce offspring. Eggs are produces by ovaries in a female and the sperm is produced in the testes of a male. They then try and fertilise the eggs.

Note:

Hope this helped <33

3 0
2 years ago
How does a mouse obtain energy for everyday functions? How might this look different compared to how an own obtains energy?
Gemiola [76]

Answer:

A mouse would obtain energy from plants that have vitamins and minerals, and protein from things like nuts. An owl would get protein from eating a mouse and vitamins and minerals from the things the mouse ate.

Explanation:

It's all one big circle. These nutrients would provide the energy needed to perform everyday tasks.

7 0
2 years ago
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