Botany - Priestly's Experiment - Oxygen is a by product of photosynthesis - Experiment

 Oxygen is a by product of Photosynthesis

Hello everyone! Today we are going to learn about an experiment which will prove Oxygen is a by product of the process photosynthesis.

Experiment:

The experiment which proves that Oxygen is a by product of Photosynthesis is known as the Priesley's Experiment

Aim - To prove Oxygen is a by product in the process Photosynthesis.

Apparatus - 1. A Mouse or Rat

                    2. A Candle

                    3. A jar

                    4. A small plant which will do the Photosynthesis

Procedure - 1. Take a small rat and place it in a closed jar 

                              2. Light the candle and place it in the closed jar.

                    3. Then, if you see it after some time, the candle will off and the rat will die.

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                    1. Now, also take a small rat and place it inside the jar.

                    2. Light the candle and place it in the closed jar.

                    3. Now, along with the candle and the rat place a small tree 

                    4. Then, if you observe it after some time also, the rat not die and the candle will not off.

Observation - First we all know that animals (Including rats) and candle will need oxygen to survive. Here, inside the jar the little oxygen also the candle and the rat will use it. So, after some time there will be no oxygen left for the rat to breath and the candle to be lighted. Eventually, the rat will die and the candle will not burn and off.

But, if you see in the second part, they will place a small plant with it. Now if you see after some time the rat will survive and the candle will be lighted. It is because, plants which does the photosynthesis will give out oxygen as a by product. So, because of this, the candle and the rat will give out carbon dioxide and the plant will take in the carbon dioxide. Then, the plant will give out oxygen which will help the candle to be lighted and the rat to be alive.

Thank you!

Humans Respiratory system and the circulation of blood

 Human Respiratory system and the circulation of blood

Hello everyone!  Do you know what is the human's respiratory organ. Yes, it is the lungs, we humans respire using the lungs. The Respiratory Organ will differ for each animal. The circulation of the blood will also be included in the process of Respiration. Today we are going to learn about the human Respiratory system. and the circulation of blood.

What is Respiration?

Respiration is the action of breathing. It is the action of breathing in Oxygen for our cells and tissues and breathing out carbon dioxide.

The process of Respiration and the circulation of blood:

First we will breath in oxygen by our nose. 

The oxygen will go through the air pipe or wind pipe.

From the air pipe the oxygen will go to the lungs. The oxygen will go to the alveoli present in the lungs. Then oxygen will go to the capillaries surrounding alveoli. 

These capillaries together will form the pulmonary vein.

From the capillaries the oxygenated blood will reach the left side of the heart by pulmonary vein.

From the heart , the oxygenated blood will reach all the cells of the body.

Now , the deoxygenated blood in our human body reaches the right side of the heart. 

The deoxygenated blood will enter into the heart through the superior vena cava and inferior vena cava.

From the heart the de oxygenated blood will go to the lungs through the pulmonary artery 

Pulmonary artery divides into small capillaries which surrounds the alveoli. 

The alveoli will filter the Carbon dioxide from the capillaries. And let the Carbon Dioxide come out of the body.

This is how we all humans respire and the circulation of the blood.

Thank you!

RBCs - Red Blood Cells

RBC - Red Blood Cells - Erythrocytes 

Hello everyone! Today we are going to learn about the RBC's present in all our human bodies.

Blood: What is Blood?

Blood is a fluid present in all human bodies and most animals. The blood helps in transporting necessary substances, like nutrients and oxygen to the cells and the lungs of the animal and  blood transports metabolic wastes away from the cells of the animal. The blood will carry antibodies and fight the infections present inside our body. 

Hemoglobin is a protein present in the RBC's (Red Blood Cells) of the animals. The Hemoglobin will help in oxygen transfer to the body and the Hemoglobin will give blood its red colour.

What are the components of blood? 

The components of blood are:

• RBC's (Red Blood Cells)
• WBC's
• Platelets
• Plasma

RBC's (Red Blood Cells):

We can say RBC's also as Red Blood Cells.

The scientific name of Red Blood Cells are "Erythrocytes". Do you know why the RBC's are Red in colour? It is because hemoglobin is present inside the Erythrocytes. Hemoglobin helps in transporting of gases.

In hemoglobin:

• Hemo - A ring structure containing iron 
• Globin - Protein

When there are too much of Erythrocytes in our body, it will cause problems also. It is because the Erythrocytes can cause the blood to be thicken and move slowly. When the count of RBC's got larger in our body it is known as "Polycythemia".

If the amount of RBC's gets low in our body, the kidney will create an hormone called as "Erythropoietin". Erythropoietin will stimulates the bone marrow to produce RBC's. When the count of RBC's got less in our body it is known as "anemia". 

The process of the production of Erythrocytes is known as "Erythropoiesis".

 The lifespan of RBC's is 120 days. So, the erythrocytes will die after 120 days. The grave yard of Red Blood Cells is known as "Spleen". 

The Erythrocytes are produced in the bone marrow, which is present in the bones.

Do you know why the RBC's have a curved shape?

It is because RBC's do not have a nucleus. They don't have a nucleus because it will need space for Oxygen.

Thank you!

Periods in the periodic table of elements

Periods in the Periodic table of elements

Hello everyone!  I hope you all would have heard about the periodic table of elements. It is a table which contains elements. It totally contains 118 elements. The periodic table of elements has periods and groups. Today we are going to learn about the periods in the periodic table of elements.

Periods

•  There are 7 types of periods.

1. First period

2. Second period

3. Third period

4. Forth period

5. Fifth period

6. Sixth period

7. Seventh period

First period

The first period contains only 2 elements Hydrogen and Helium. So, it is called the “shortest period”.

Second period

The second period contains 8 elements. Which are Li, Be, B, C, O, F, Ne. The second period is called as "Short Period".

Third period

The third period contains 8 elements. Which are Na, Mg, Al, Si, P, S, Cl, Ar. The third period is known as "Short period".

Fourth Period

The fourth period contains 18 elements. Elements from K to Kr, from elements 19 - 36. The fourth period is called as the "Long Period".

Fifth Period

The fifth period contains 18 elements. Which are from Rb to Xe. From 37 - 54 elements. The fifth period is called as the "Long Period".

Sixth Period

The sixth period contains 32 elements. Which are from Cs to Rn. From 55 - 86. The sixth period is called as the "Longest Period".

Seventh Period

The seventh period contains 31 elements. The seventh period is an incomplete period.

Thank you!

How the stomatal pore will receive and release water?

  How the stomatal pore will receive and release water?

Hello everyone! In the process photosynthesis water will be absorbed by the roots. After the water will go through the roots. From that the stem will carry the water and leave it in the leaves. The stomata present in the leaves will absorb water. Today we are going to learn about how the stomatal pore will receive and release water.

How the stomata will receive water?

 When the water is being received the stomatal pore will open as the guard cell allows the water to be received. The inner sides of the guard cell will be thicken and the stomatal pore will open.

How the stomata will release water?

 When ever water is no more needed in the stomata, the stomatal opening will close and become as flatten.