Tag: circulatory pathways

Questions Related to circulatory pathways

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

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

  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.

Show answer
Correct Option: D

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

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

  1. Digestive system

  2. Circulatory system

  3. Excretory system

  4. Respiratory system

Show answer
Correct Option: B
Explanation:

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

So, the correct option is 'Circulatory system'.

In which vertebrate oxygenated and deoxygenated blood gets mixed?

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

  1. Fish

  2. Amphibian

  3. Bird

  4. Mammal

Show answer
Correct Option: A
Explanation:

The amphibians have blood directed in two circuits with two atria and one ventricle where mixing of blood takes place.

So the correct answer is 'amphibian'.

In closed circulatory system 

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

  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

Show answer
Correct Option: D
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'

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

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

  1. Cockroach, Locust, Molluscs

  2. Non-cephalopod molluscs, Cockroach

  3. Cephalopod molluscs and Earthworm

  4. Hemichordates and Non-cephalopd molluscs

Show answer
Correct Option: C
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'.

An open circulatory system occurs in the

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

  1. Reptiles

  2. Birds

  3. Insects

  4. Annelids

Show answer
Correct Option: C
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. 

Circulatory system in cockroach is 

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

  1. Open

  2. Closed

  3. Semi-open

  4. Sometimes open and sometimes closed

Show answer
Correct Option: A
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.

Which of the following animals has blood as circulating medium?

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

  1. Cockroach

  2. Mussel

  3. Leech

  4. Planaria

Show answer
Correct Option: C
Explanation:

Leeches belong to Phylum Annelida and have closed circulatory systems that carry blood, nutrients etc to all parts of the body.

So, the correct answer is 'Leech'

In a closed circulatory system, blood is completely enclosed with in

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

  1. Sinuses

  2. Vessels

  3. Heart

  4. Skeleton

Show answer
Correct Option: B
Explanation:

In a closed circulatory system, blood is always contained within vessels - arteries, veins, capillaries.

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

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

  1. Cockroach

  2. Fish

  3. Scorpion

  4. Mollusc

Show answer
Correct Option: B
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'.