Tag: circulatory pathways

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Questions Related to circulatory pathways

Multiple choice types of circulatory system circulatory pathways transportation in plants and circulation in animals body fluids and circulation biology

Which ones have open circulatory system
1. Ascidia 2. Cockroach 3. Earthworm 4. Prawn 5. Silver Fish 6. Snail 7. Squid.

  1. 2, 4, 6

  2. 1, 2, 4, 6

  3. 3, 4, 5, 7

  4. 2, 4, 5, 6

  5. 1, 2, 4, 6, 7.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Open circulatory systems are characteristic of arthropods (cockroach, prawn, silver fish) and most molluscs (snail). Ascidia (tunicates) and squid (cephalopods) have closed systems.

Multiple choice types of circulatory system circulatory pathways transportation in plants and circulation in animals body fluids and circulation biology

which of the following vertebrate organ systems does not open directly to the external environment?

  1. Digestive system

  2. Circulatory system

  3. Excretory system

  4. Respiratory system
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The circulatory system is the only system which is not exposed to the external environment.

So, the correct option is 'Circulatory system'.

Multiple choice types of circulatory system circulatory pathways transportation in plants and circulation in animals body fluids and circulation biology

In closed circulatory system 

  1. The cells and tissues are directly bathed in the blood pumped out by heart

  2. Arteries and veins are lacking

  3. The capillaries are largest blood vessels and closed at their ends

  4. Blood circulates through a series of vessels of varying diameters
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • Closed circulatory system has blood enclosed all the time within the vessels. In this system, blood is pumped by the heart through vessels.
  • It is more structured and controlled.

So, the correct option is 'Blood circulates through a series of vessels varying diameters'

Multiple choice types of circulatory system circulatory pathways transportation in plants and circulation in animals body fluids and circulation biology

Which of the following groups of animals have closed circulatory system?

  1. Cockroach, Locust, Molluscs

  2. Non-cephalopod molluscs, Cockroach

  3. Cephalopod molluscs and Earthworm

  4. Hemichordates and Non-cephalopd molluscs
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Closed circulatory system has blood closed in all vessels within vessels of different sizes. In this type, the blood is pumped through vessels by heart. This type of circulatory system is more structured and controlled. 

So, the correct option is 'Cephalopod molluscs and earthworm'.

Multiple choice types of circulatory system circulatory pathways transportation in plants and circulation in animals body fluids and circulation biology

An open circulatory system occurs in the

  1. Reptiles

  2. Birds

  3. Insects

  4. Annelids
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

An open circulatory system describes a system where blood and interstitial fluid (fluid found between cells in the body) are allowed to mix in an organism. Organisms that have an open circulatory system don't have true blood since it is mixed with other fluids. The blood in these organisms is defined as haemolymph. Two of the largest phyla in the world, arthropoda and mollusca, have an open circulatory system. Arthropods include most insects and sea organisms like crabs and lobsters. Molluscs are organisms with two shells that are hinged together. Examples include clams and oysters. However, not all molluscs have an open circulatory system. Two major members of the mollusc family, octopus and squid, have a closed circulatory system. 

Multiple choice types of circulatory system circulatory pathways transportation in plants and circulation in animals body fluids and circulation biology

Circulatory system in cockroach is 

  1. Open

  2. Closed

  3. Semi-open

  4. Sometimes open and sometimes closed
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Insects have an open circulatory system, which differs in both structure and function from the closed circulatory system found in humans and other vertebrates. In an open system, blood (usually called haemolymph) flows freely within body cavities, where it makes direct contact with all internal tissues and organs.

Multiple choice types of circulatory system circulatory pathways transportation in plants and circulation in animals body fluids and circulation biology

Choose the correct answer from the alternatives given.
Which of the following has a closed type of circulatory system?

  1. Cockroach

  2. Fish

  3. Scorpion

  4. Mollusc
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • In an open circulatory system, the blood is pumped by the heart into the body cavity or the hemocoel. It is found in Arthropoda and Molluscs. Example: Cockroach, Scorpian.
  • In a closed circulatory system, the blood is circulated through blood vessels. It is found in vertebrates and annelids. Example: Fish.
So, the correct option is 'Fish'.