Read before you practise · 2 min
Read Circulation by System and Destination
Circulatory systems differ in how blood is contained, and oxygen leaves the blood where tissues use it.
NSEJS · Body Fluids and Circulation · 1 linked question · 100% coverage
Know this first
Circulatory Types and Gas Transport is the central idea in this question pattern. Identify the condition in the stem before applying the method below.
Study deeper: NCERT Science · Body Fluids and Circulation
Compare systems
Arthropods and most molluscs have open circulation; cephalopods are an exception among molluscs.
Locate oxygen unloading
Oxygen diffuses from systemic blood into body tissues at tissue capillaries, so blood loses most oxygen there.
OlympIQ exam lens
- ✓Open system → arthropods and most molluscs.
- ✓Oxygen unloading → tissue capillaries.
OlympIQ trap
Pulmonary capillaries load oxygen; systemic tissue capillaries unload it.
Ready to try the pattern?
100% coverage across the linked question.
Practise the linked questionSign in to practise — your XP, streak and analysis update as you solve.