Life process set 1

Identify the correct statement about heart

• Right atrium receive deoxygenated blood, right ventricle pumps oxygenated blood

• Left atrium receive oxygenated blood, left ventricle pumps oxygenated blood

• Left atrium receive deoxygenated blood, left ventricle pumps deoxygenated blood

• Right atrium receive oxygenated blood, right ventricle pumps deoxygenated blood

Identify the unmatched pair

• Pulmonary artery – carry deoxygenated blood from heart to lungs

• Pulmonary vein – bring oxygenated blood to the heart from lungs

• Aorta – carry oxygenated blood from heart to different organs

• Vena cava – bring oxygenated blood to heart from different organs

Identify the incorrect statement about blood vessels

• Veins bring blood to the heart

• Walls of veins are non elastic

• Arteries have thin, non elastic walls

• One cell thick vessels are called capillaries

The vertebrates which show double circulation are,

• Fish and Mammals

• Amphibians and reptiles

• Birds and reptiles

• Birds and mammals

Choose the incorrect statement about circulatory system in animals

• Amphibians and reptiles have three chambered heart

• Separation of right and left side of the heart ensure less supply of oxygen to the blood

• Amphibians and reptiles tolerate mixing of some amount of oxygenated and deoxygenated blood

• Single circulation of blood found in fishes

A colourless fluid other than blood that helps in transportation is

• RBC

• Platelets

• Lymph

• Matrix

Which of the following is not a characteristic of lymph

• It is colourless

• It contains more protein

• Carry digested and absorbed fat from intestine

• Drains excess of fluid

The loss of water in the form of vapour from the aerial parts of the plants is known as

• Photosynthesis

• Transportation

• Transpiration

• Condensation

Choose the correct statement about transpiration

• i, and ii

• ii, and iii

• i and iv

• ii, and iv

Absorption of water in plants roots is due to the

• Root pressure which creates difference in the concentration of ions between root and soil

• Stem pressure which creates difference in the concentration of ions between root and soil

• Root pressure which creates higher concentration of ions between root and soil

• Atmospheric pressure which creates less concentration of ions between root and soil