Download App

PART - 2 - Unit V : CH - 15 Body Fluids and Circulation — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYPART - 2 - Unit V : CH - 15 Body Fluids and Circulation3 Marks
Question
What is blood circulation system? Explain the difference between single circulation and double circulation.
✓

Answer

Blood Circulatory System : In humans, the system that transports $O _2$ and $CO _2$, nutrients, excretory substances and secretory substances from one part of the body to another is called blood circulatory system.
Differences between single circulation and double circulation
S.No.Single CirculationDouble Circulation
1. Blood passes through the heart once in a complete cycle. Blood passes through the heart twice.
2. The heart pumps deoxygenated blood. The heart pumps deoxygenated blood to the lungs and sends oxygenated blood to the body.
3. Blood is oxygenated by gills. Blood is oxygenated by the lungs.
4. This type of circulation is found in  This type of circulation is found in mammals, birds,Reptiles etc.
5. There are two chambers in the heart which are called atrium and ventricle respectively. There are four chambers in the heart which are called two atriums and two ventricles respectively.
 

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "3 Marks Question" from PART - 2 - Unit V : CH - 15 Body Fluids and Circulation→PART - 2 - Unit V : CH - 15 Body Fluids and Circulation — all question types→BIOLOGY STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Show the structure of a renal corpuscle with the help of a diagram.
→
Explain how during light reaction of photosynthesis, ATP synthesis as a chemiosmotic phenomenon takes place?
→
Difference between Heartbeat and Pulse.
→
Analyse the events during every stage of cell cycle and notice how the following two parameters change. Amount of DNA content (C) per cell.
→
The number and kinds of organism is not constant. How do you explain this statement?
→
Which are called complex permanent tissues? Describe in detail.
→
In which fields taxonomical aids are helpful? Why taxonomic aids are used in these studies? Which different taxonomical aids are used by the biologists?
→
Different types of teeth are responsible for different steps of mastication. This is similar to which of these? Why should we take good care of our teeth?
  1. We need different types of tools to carry out different tasks.
  2. We need different modes of transport to travel.
→
Write two names for each of the following:
  1. Free-living, nitrogen-fixing cyanobacteria.
  2. Free-living, aerobic, nitrogen-fixing bacteria.
  3. Symbiotic, nitrogen-fixing bacteria.
→
What are root hairs? Which region of the root do they arise from? What is their function?
→