Exploring the Importance of Blood Types

What determines if a blood type is positive or negative?

• The presence of B antigen

• The presence of both A and B antigens

• The presence of A antigen

• The presence of RhD antigen

What happens if the wrong blood type is transfused?

• The blood will become more efficient

• The body will accept it without any issues

• The blood will change its type

• The antibodies will attack the unknown antigen

What is the ideal blood pressure reading?

• 140 over 90 mmHg

• 100 over 60 mmHg

• 120 over 80 mmHg

• 130 over 85 mmHg

What does the systolic blood pressure indicate?

• The pressure when the heart relaxes

• The pressure when the heart contracts

• The pressure in the veins

• The average pressure in the arteries

What causes blood rain in the Sahara Desert region?

• Hemoglobin in the rain

• Astaxanthin pigment

• Brownish dust and sand

• Red algae spores

Which algae caused blood rain in Kerala?

• Trentepohlia Annulata

• Spirogyra

• Haematococcus Pluvialis

• Chlorella Vulgaris

What is the main component that gives human blood its red color?

• Plasma

• White blood cells

• Hemoglobin

• Platelets

Which protein is found in the blood of octopuses and spiders?

• Biliverdin

• Hemocyanin

• Myoglobin

• Hemoglobin

What color is the blood of some lizards due to the presence of biliverdin?

• Red

• Yellow

• Green

• Blue

What is the role of hemoglobin in red blood cells?

• To fight infections

• To clot blood

• To bind with oxygen

• To transport nutrients