Answer the following questions :-
1) (a) What is blood?
(b) Why is it considered as connective tissue?
(c) Name the components of blood.
(d) How is lymph different from blood?
Answers
(a) Blood, fluid that transports oxygen and nutrients to the cells and carries away carbon dioxide and other waste products. Technically, blood is a transport liquid pumped by the heart (or an equivalent structure) to all parts of the body, after which it is returned to the heart to repeat the process.
(b) Blood is considered a connective tissue for two basic reasons: (1) embryologically, it has the same origin (mesodermal) as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes.
(c) It has four main components: plasma, red blood cells, white blood cells, and platelets. Blood has many different functions, including: transporting oxygen and nutrients to the lungs and tissues.
(d) BLOOD LYMPH
1. It is red coloured fluid connective tissue that contains RBCs.
1. It is colourless fluid connective tissue in which RBCs are absent.
2. It is associated with circulation of Oxygen and Carbon dioxide. 2. It helps in body defence and is a part of immune system.
3. It contains plasma, RBC's, WBC's, platelets and proteins. 3. It contains plasma, less number of WBC's and platelets. It lacks proteins.
Answer:
a)Your blood is made up of liquid and solids. The liquid part, called plasma, is made of water, salts, and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells, and platelets. Red blood cells (RBC) deliver oxygen from your lungs to your tissues and organs.
b)Blood is considered a connective tissue for two basic reasons: (1) embryologically, it has the same origin (mesodermal) as do the other connective tissue types and (2) blood connects the body systems together bringing the needed oxygen, nutrients, hormones and other signaling molecules, and removing the wastes.
c)It has four main components: plasma, red blood cells, white blood cells, and platelets. Blood has many different functions, including: transporting oxygen and nutrients to the lungs and tissues.
d)in photo
