BIOLOGY M.C.Q (1 Marks)

Approximately what percentage of CO₂ is accessed by plasma in dissolved state?

In humans, lungs are divided into:

Which respiratory pigment is found in cockroach?

Under normal physiological conditions in humans, every 100 ml of oxygenated blood transport ________ O₂ in the tissues.

What are the sensory structures associated with? These structures can detect changes in CO₂ and H⁺ concentration and give necessary signals to the lymph centre for therapeutic action :

In which of the following diseases the alveolar wall gets damaged?

The vital capacity of the lungs is:

What is H₆?

There is a centre located in the pons region of the brain which can improve the functions of the respiratory centre, it is called:

The immediate source of energy in cellular activity is:

The dissociation curve of O₂ is :

During exhalation, the diaphragm is:

Which of the following is responsible for regulation of respiration:

In the alveoli of simple exchange of gases in the lungs takes place :

If the concentration of CO₂ is high then the curve of oxygen will be shifted:

Expiration is a:

In anaerobic respiration, pyruvic acid is formed in the muscles:

In exhalation:

CO₂ is dissolves in which form in blood plasma or haemoglobin?

What is the air present in the lungs after forced exhalation called:

Whistling sound during exhalation is the symptom of which disease?

Vital capacity of lungs is:

The volume of air taken in or exhaled in normal condition is called:

The energy used in respiration is:

During inhalation, the diaphragm :

The diaphragm is helpful:

The respiratory organ in humans is:

During exhalation:

O₂ is transported in every cell of the body:

Haemoglobin forms compound with:

About 20 percent of CO₂ is transported by:

How much percent of O₂ is transported in dissolved state by plasma?

The organ that separates the thoracic cavity and abdominal cavity is:

The structure that prevents food from entering the trachea:

Where does the exchange of gases (O₂ and CO₂) take place in humans?

Which common path of swallowing food and respiration is:

Vocal fibres are found in:

In which animal is respiration found without any respiratory organ?

Oxygen finally reaches the lungs :

Which of the following prevents the trachea from collapsing?