Cellular Respiration and Respiratory System

Option (1) is the correct answer.

Option (4) is the correct answer.

Glottis of frog leads to laryngotracheal chamber. It is ventral to oesophagus and is surrounded by lateral laryngeal cartilages.

NADH is formed along with ATP in glycolysis.

Found in the lung parenchyma, the pulmonary alveoli are the terminal ends of the respiratory tree, which outcrop from either alveolar sacs or alveolar ducts, which are both sites of gas exchange with the blood as well.

The importance of Krebs cycle is in the production of ATP.

When one molecule of FADH₂ is oxidised to FAD, the number of ATP produced is two.

Respiratory quotient is defined as the ratio of volume of CO₂ evolved to the volume of oxygen consumed.

The Krebs cycle occurs in the mitochondrial matrix and generates a pool of chemical energy (ATP, NADH, and FADH2) from the oxidation of pyruvate, the end product of glycolysis.

Glycolysis is common to anaerobic and aerobic respiration. It occurs in cytoplasm of cells.

Vocal cords are present in larynx. It helps in sound production.

Mg is the most common activator of glycolytic enzymes. It plays as a cofactor .

RBCs and plasma transports O₂ and CO₂ in body.

Krebs cycle takes place in mitochondria.It is a series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate derived from carbohydrates, fats and proteins into carbon dioxide and chemical energy in the form of ATP.

Respiratory enzymes are located in mitochondrial matrix.

Glycolysis occur in cytoplasm.Glycolysis is the metabolic pathway that converts glucose into pyruvate.

Oxyhaemoglobin is a stronger acid as it allows less CO₂ to be transported as bicarbonate.

Glycolysis is inhibited if the cells contain excess of ATP. They act as negative regulator the glycolysis.

2 molecules of ATPs are generated during anaerobic breakdown of glucose in animals.

Trachea bifurcates at the level of 4^th cervical vertebra.It divides into the right and left main bronchi and is marked internally by the presence of a carina or keellike ridge between the diverging bronchi.