Respiration 10th class

We will find vocal cords in…..

• Larynx

• Pharynx

• Nasal cavity

• Trachea

Cluster of air sacs in lungs are called…….

• Alveoli

• Bronchi

• Bronchioles

• Air spaces

Which of the following is correct ?

• The diaphragm contracts-Volume of chest cavity decreases.

• The diaphragm contracts-Volume of chest cavity decreases.

• The diaphragm expands-Volume of chest cavity increases.

• The diaphragm expands-volume of chest cavity decreases.

Respiration is a catabolic process because of……

• Breakdown of complex food molecules

• Conversion of light energy

• Synthesis of chemical energy

• Energy storage

Energy is stored in …….

• Nucleus

• Mitochondria

• Ribosomes

• Cell wall

In this process food is broken down for release of energy.

• Photosynthesis

• Respiration

• Excretion

• Circulation

The word respiration comes from….

• English

• Greek

• Latin

• French

The gas liberated on heating powdered charcoal is

• Carbon dioxide

• Oxygen

• Nitrogen

• All

The gas needed for combustion of substances is…….

• Oxygen

• Carbon dioxide

• Phosphorus

• Nitrogen

The air we breath out precipitates……

• Water

• Lime water

• Sodium Hydroxide

• Sugar solution