very short Answer Type Questions:
Which system is responsible for transportation of materials in human beings?
What are the four chambers of human heart?
What are the tissues that form vascular bundles in plant?
What is the function of phloem in plants?
Name the chambers of heart which receive blood.
ist the four major components of blood.
What is the normal rate of heartbeat?
Which pigment gives blood its red colour?
Define excretion.
What is urethra?
Where is kidney located in human body?
Answers
Answer:
a) The circulatory system is responsible for transportation of materials in human body.
b) The four chambers of human heart are left ventricle, right ventricle, left atrium and right atrium.
c) A tissue is a group of cells that perform specialised function in an organism.
d) Phloem is the tissue that transports food materials from the leaves to other parts of a plant.
e) The right auricle and left atrium of the heart receive blood.
f) The four major components of blood are Red Blood cells (RBC), White Blood cells (WBC) , platelets and Plasma.
g) The normal rate of heartbeat of a person in restaurants is usually 72-80 times per minute.
h) The RBC contains a red pigment called haemoglobin which gives the blood its red colour.
I) The process through which living organisms get rid of the waste products , produced in their cells is called excretion.
j) Urethra is the opening at the end of the tube of excretory system from which the urine stored in urinary bladder, gets rid of from the body.
k) Kidneys are present in the back of our body, just above the waist.
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OMM NAMAH SHIVAY