BIO CDF

_ _ _ _ _ commonly involves the use of oxygen to break down carbohydrates and other organic molecules releasing energy, Carbon dioxide and water in the process.

• NUTRITION

• RESPIRATION

• TRANSPORTATION

• EXCRETION

Partial oxidation of food in the absence of oxygen, resulting in the release of some amount of energy is called _ _ _ _ _

• ANAEROBIC RESPIRATION

• AEROBIC RESPIRATION

• CELLULAR RESPIRATION

• NONE OF THE ABOVE

The complete oxidation of food yielding carbon dioxide, water, and energy in the presence of oxygen is called

_ _ _ _ _

• ALL OF THE ABOVE

• RESPIRATION

• ANAEROBIC RESPIRATION

• AEROBIC RESPIRTION

During day time in plants, _ _ _ _ _ which is given out during respiration is used for photosynthesis and only _ _ _ _ _is released.

• N₂

• CO₂

• O₂

• H₂O

During night time only respiration takes place. Therefore only _ _ _ _ _is released, which is a major activity during the night.

• CO₂

• O₂

• H₂O

• N₂

Terrestrial animals take Oxygen from the atmosphere. Aquatic animal take _ _ _ _dissolved in water. Oxygen content is low in water, therefore they breathe _ _ _ _ _.

• O₂,SLOW

• CO₂,FASTER

• CO₂,SLOW

• O₂,FASTER

In human respiratory system the path of air is

• External nostrils --> Nasal cavity -->Trachea-->Bronchi-->Alveoli-->Bronchioles

• Internal nostrils --> Nasal cavity -->Trachea-->Bronchi-->Bronchioles-->Alveoli

• External nostrils --> Nasal cavity -->Trachea-->Bronchi-->Bronchioles-->Alveoli

• Internal nostrils-->Trachea-->Bronchioles-->Bronchi-->Alveoli

External respiration - occurs in the lungs where oxygen diffuses into _ _ _ _ _ and carbon dioxide diffuses into the

_ _ _ _ _.

• BLOOD

• ALVEOLI

• WATER

• KIDNEY

Internal respiration occurs in the _ _ _ _ _ tissues, where oxygen diffuses out of the blood and carbon dioxide diffuses out of the cells.

• METABOLIZING

• CONNECTIVE

• MUSCLE

• NERVOUS

Exchange of gases in unicellular organisms like Amoeba takes place by _ _ _ _ _.

• TRANSPIRATION

• SWEATING

• DIFFUSION

• EXCREATION