KPK 9th Class Biology Chapter 9 Transport Short Questions Answers
KPK 9th Class Biology Chapter 9 Transport Short Questions with answers are combined for all 9th class(Matric/ssc) Level students.Here You can prepare all Biology Chapter 9 Transport short question in unique way and also attempt quiz related to this chapter.Just Click on Short Question and below Answer automatically shown. After each question you can give like/dislike to tell other students how its useful for each.
Class/Subject: 9th Class Biology
Chapter Name: Transport
Board: All KPK Boards
- Malakand Board 9th Class Biology Chapter 9 Transport short questions Answer
- Mardan Board 9th Class Biology Chapter 9 Transport short questions Answer
- Peshawar Board 9th Class Biology Chapter 9 Transport short questions Answer
- Swat Board 9th Class Biology Chapter 9 Transport short questions Answer
- Dera Ismail Khan Board 9th Class Biology Chapter 9 Transport short questions Answer
- Kohat Board 9th Class Biology Chapter 9 Transport short questions Answer
- Abbottabad Board 9th Class Biology Chapter 9 Transport short questions Answer
- Bannu Board 9th Class Biology Chapter 9 Transport short questions Answer
Helpful For:
- All KPK Boards 9th Class Biology Annual Examination
- Schools 9th Class Biology December Test
- KPK 9th Class Biology Test
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KPK 9th Class Biology Chapter 9 Transport Short Questions Answers
Why does RBC lack cellular organelles?
RBC is the cell which lack cellular organelles because thy have no nucleus. They contain haemoglobin which only transport . Most of the space is occupred for haemoglobin.
Is the rate of transpiration higher on a sunny or a rainy day? Why?
Rate of transpiration will be higher on a sunny day, because warm air enter leaves that cause more water to convert into vapours and come out through stomata.
What would happen to transpiration stream if the air is injected in xylem vessels?
If air injected in xylem vessels, the chain of water molecule will break due to which transpiration stream will be blocked.
What is translocation of food in plants?
“Transport of food from source (leaves) to sink (root, seed, fruit) is called translocation of food.
What is transpiration pull? Describe the importance of transpiration in the life of the plants.
Water moves upwater in plants due to transpiration pull. Xylem vessels of stem pull water from root xylem and roots from soil. In this way a column of water is generated from the roots to the leaves. This upwater movements of water is called transpiration pull and sometimes also called transpiration stream.
How does the pressure flow theory explain the movement of sugar through phloem vessels of plant?
Pressure flow theory:
This theory was proposed by Ernst Munch (a German Biologist) in 1930. This is the most acceptable theory which explains the flow of food through phloem sieve tubes.
According to this theory, the osmotic pressure difference between the source and sink causes the food to enter sieve tubes and then move from the area of higher osmotic pressure (source) to an area of low osmotic pressure (sink).
This theory can be explained in the given following steps:
During photosynthesis, glucose is synthesize in the mesophyll cells of the leaves.
Some part of this formed glucose is used during respiration while rest of glucose is converts into surcease.
Sucrose makes a concentrated solution in tll cell.
As concentration of suger solution increases in side the cell, it draws water from nearby xyle vessels by diffusion, thus turgor pressure in creases.
Due to increased turgor pressure sugar solution (food) is pushed into the sieve tubes.
Food inside the sieve tube passes through the pores from one cell to another and final reaches the sink.
Describe the composition of human blood. What are the main function of blood cells?
Blood: “The red coloured circulatory fluid within the blood vessels is the blood”.
This is opaque, sticky and heavier than water. In a healthy person the amount of blood is 1/12th of the body weight or about 5 liters of volume. It is the main transport media within the body.
How are different blood groups formed? What is their practical implication in the blood transfusion?
The ABO Blood Groups are due to certain specific antigen on the surface of RBC.
Blood Group A: A person with blood group A having antigen A and antibody B.
Blood Group B: A person with blood group B having antigen B and antibody A.
Blood Group AB: A person with blood group AB having both antigen A and B but no antibody.
Blood Group O: A person with blood group O having neither antigen A nor B but both antibody A and B are present.
The Blood Group Practical Implication in The Blood Transfusion:
Blood Transfusion: The Transfer of blood from a healthy person to a non healthy person is called blood transfusion. The accurate grouping of blood is very important.
Universal Recipients: Person with blood group AB are called universal recipients.
Universal Donors: Person with blood group O are called universal Donors.
If a person with blood group A recives blood group B. The anti-B antibodies present in recipients blood will at once recognize the antigen B present on RBCs of donated blood. The anti-B antibodies of recipient will react with the B antigens on the donated RBCs and the blood will coagulates. The coagulated blood blocks the flow of blood through blood vessels.
If a person with blood group B recives blood group A. The anti-B antibodies of recipient will react with the A antigens on the donated RBCs and the blood will coagulates.
A person with blood group AB accepts all types of blood.
A person with blood group O can only be given the blood group O.
If we don’t take water the whole day in the month of June, what would be the effect on volume of plasma in blood?
If we don’t take water whole day in the month of June, the amount of water in our body will decrease as a result the normal functions of blood will be disturbed.
Write any four difference between xylem and phloem.
Xylem Phloem
1 Xylem usually found deep in the plant. Phloem usually found towards outer side of the plant.
2 It conducts water or sap. It conducts organic food.
3 Xylem is made up of three types of dead cell (vessels, trachids, xylem fibres) Phloem contains only one type of dead cells (phloem fibres)
4 Thee are one type of living cells (xylem parenchyma) There are three types of living cell (sieve tubes cells, companion cells and phloem parenchyma
