Respiration Questions

In mitochondria, protons accumulate in the:

Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because:

The partial pressure of oxygen in the alveoli of the lungs is:

Oxidative phosphorylation is:

Which of the following biomolecules is common to respiration-mediated breakdown of fats, carbohydrates and proteins?

Approximately seventy percent of carbon-dioxide absorbed by the blood will be transported to the lungs:

In which one of the following processes is ${\text{CO}}_2$ not released?

In the human respiratory system, the Bag-like structures where gas exchange occurs are:

Which of the following metabolites is common to the respiration-mediated breakdown of fats, carbohydrates, and proteins?

The three boxes in a diagram represent the major biosynthetic pathways in aerobic respiration. Pathway A is Glycolysis, B is Krebs cycle, and C is ETS. Arrows represent reactants/products. Arrows 4, 8, and 12, which exit from each pathway respectively, can all represent:

Which one of the following is the correct statement for respiration in humans?

People who have migrated from the plains to an area adjoining Rohtang Pass about six months back:

Read the following four statements (A – D):(A) Both, photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.(B) In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth.(C) Stamens in flowers of Gloriosa and Petunia are polyandrous.(D) Symbiotic nitrogen-fixers occur in free-living state also in soil.How many of the above statements are right?

The atmospheric concentration of $C{O}_2$ at which photosynthesis just compensates for respiration is referred to as $C{O}_2$ compensation point.

Bulk of carbon dioxide $({\text{CO}}_2)$ released from body tissues into the blood is present as:

What is true about $\text{RBCs}$ in humans?

Listed below are four respiratory capacities ($\text{a-d}$) and four jumbled respiratory volumes. Which one is correctly matched?Respiratory capacities: (a) Residual volume, (b) Vital capacity, (c) Inspiratory reserve volume, (d) Inspiratory capacity.Respiratory volumes: $1200\text{mL},2500\text{mL},3500\text{mL},4500\text{mL}$.

The energy releasing metabolic process in which substrate is oxidised without an external electron acceptor is called:

Aerobic respiratory pathway is appropriately termed:

Substrate oxidation without an external electron acceptor is called:

The chemiosmotic coupling hypothesis proposes that ATP is formed because:

In germinating seeds, fatty acids are degraded exclusively in the:

The overall goal of glycolysis, Krebs cycle and the electron transport system is the formation of:

All enzymes of TCA cycle are located in the mitochondrial matrix except one which is located in inner mitochondrial membranes in eukaryotes and in cytosol in prokaryotes. This enzyme is:

Which one of the following mammalian cells is not capable of metabolising glucose to carbon-dioxide aerobically?