How does cellular respiration explain why animals breathe rapidly when they are running?
energy is used up while running, and cellular respiration needs oxygen to produce more energy.

energy is used up while running, and cellular respiration needs carbon dioxide to produce more energy.

glucose is used up while running, and cellular respiration needs oxygen to make glucose.

glucose is used up while running, and cellular respiration needs carbon dioxide to make glucose.

Answer is: Energy is used up while running, and cellular respiration needs oxygen to produce more energy.

Cellular respiration creates an energy molecule when glucose is broken down.

Balanced chemical reaction for cellular respiration (convert biochemical energy):  

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy, or:

glucose + oxygen → carbon dioxide + water + energy .

Carbon dioxide and water are released during cellular respiration.

This reaction is exothermic (energy is released).

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.  

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