Ch-11 Questions 1 to 20

Chapter-11

Transportation in Animals and Plants

Sr NO.	Question	Answer
1.	What happens when you get a cut on your body?	Blood flows out.
2.	What is blood?	Blood is the fluid which flows in blood vessels.
3.	What the function blood done for our body?	It transports substances like digested food from the small intestine to the other parts of the body. It carries oxygen from the lungs to the cells of the body. It also transports waste for removal from the body.
4.	How does the blood carry various substances?	One type of cells are the red blood cells (RBC) which contain a red pigment called haemoglobin. Haemoglobin binds with oxygen and transports it to all the parts of the body and ultimately to all the cells.
5.	Blood is a ______?	Liquid,
6.	Blood has ____ of various kinds suspended in it.	Cells
7.	The fluid part of the blood is called ______.	Plasma.
8.	Why is the colour of blood red?	One type of cells are the red blood cells (RBC) which contain a red pigment called haemoglobin. The presence of haemoglobin makes blood appear red.
9.	One type of cells are the red blood cells (RBC) which contain a red pigment called ____________.	Haemoglobin.
10.	The blood also has __________ which fight against germs that may enter our body.	White blood cells (WBC)
11.	How coming out of blood become stopped after a minor cut on our skin?	After some time of the cut a dark red clot might plug the cut. The clot is formed because of the presence of another type of cells in the blood, called platelets.
12.	The clot (after a cut on our body) is formed because of the presence of another type of cells in the blood, called ______.	Platelets.
13.	How many types of blood vessals are present in our body?	Two types
14.	What are two types of blood vessals are present in our body?	Arteries and Veins
15.	________ carry oxygen-rich blood from the heart to all parts of the body.	Arteries
16.	Why the arteries have thick elastic walls.	Since the blood flow is rapid and at a high pressure on arteries, which have thick elastic walls.
17.	What is pulse? How we can find out our pulse rate?	Place the middle and index finger of our right hand on the inner side of left wrist. The throbbing movements appearing inside is pulse.
18.	Why throbbing pulse is happening on our body?	Pulse is due to the blood flowing in the arteries.
19.	What is pulse rate?	The number of beats per minute is called the pulse rate.
20.	How many pulse beats could you count?	A resting person, usually has a pulse rate between 72 and 80 beats per minute.