Harmful mutations in the mitochondrial genes coding for the electron transport would must affect a. oxygen diffusion into erythrocytes b. urine flow out of the urethra c. rapid beating of a hummingbird's wings d. formation of the from free phospholipids e. the Calvin cycle A specific poison blocks H^+ transport across the inner membrane of the mitochondria. How will this directly affect the cell? a. glucose will not be broken down at all b. The citric acid cycle (Krebs cycle) will be inhibited c. ATP will not be synthesized in sufficient amounts d. carbon dioxide will not be released from cells e. oxygen intake will the inhibited The oxygen consumed during cellular respiration is involved directly in which or event? a. the of ADP to form ATP b. the citric acid cycle c. the oxidation of pyruvate to acetyl CoA d. glycolysis e. accepting electron, at the end of the election transport chain Which of the following statements best describes the relationship between and cellular respiration: a. photosynthesis produces organic molecules that are oxidized during cellular respiration to produce ATP. b. plants and other photosynthetic organisms get energy from photosynthesis and animals get energy from cellular respiration. c. photosynthesis and cellular respiration use CO_2 and H_2 O as substrates. d. photosynthesis and cellular respiration are exergonic, energy releasing reactions.

Rapid beating of Hummingbird's wing require a lot of energy. Since energy in form of ATP is generated by Electron Transport Chain by the Complex V (ATP synthase) from ADP. So if there is any mutation in Electron Transport Chain then ATP synthesis will be decreased and rapid beating of wing action cannot be performed.

The other options given donot require electron transport chain so there function will not be hampered.

2.The oxygen consumed during cellular respiration is directly involved in :-

(e) Accepting electron at the end of electron transport chain.

At the end of electron transport chain oxygen accepts electron and H+ to form water which is released as a by product.

In the other cases given in the options, the oxygen has no direct role (can have indirect role).

3.

Relationship between photosynthesis and cellular respiration :-

(a) Photosynthesis produces organic molecules that are oxidized during cellular respiration to produce ATP.

During photosynthesis plants make their own food from inorganic material and sunlight. Glucose is made during Photosynthesis but thi cannot be directly utilized as a form of energy so it is oxidized during cellular respiration and converted it into ATP which is the energy source for the plant cells.

The statement (b) is incorrect since plants also need oxygen during cellular respiration to breakdown the organic substances (glucose) to ATP which is utilized by the cells for energy.

The other two statements are also incorrect as both the process donot use CO2 and H2O as substrate. Glucose and O2 is the substrate for cellular respiration. Both the reactions are not exergonic.

So all statements are incorrect except (a).

luisvaschetto luisvaschetto · Answer 2 · 2025-03-26T22:31:11-04:00

Mutations in genes involved in ETC would most affect the beating of bird's wing. Oxygen is involved in accepting e- during cellular respiration. Photosynthesis produces molecules that are oxidized in cellular respiration.

Cellular respiration refers to the metabolic reactions by which aerobic cells produce ATP (the energy coin of cells) by using the energy stored in the chemical bonds of foods and oxygen.

Muscular cells are used for the beating of Hummingbird's wings, which requires a high amount of energy (ATP) obtained from cellular respiration.

Cellular respiration has three stages: glycolysis, the Krebs cycle and oxidative phosphorylation.

Oxygen is the last electron acceptor during the Electron Transport Chain (ETC) of oxidative phosphorylation.

Photosynthesis refers to the metabolic reactions by which plant cells use the energy from the sun and carbon dioxide to produce simple carbohydrates (sugars), which are oxidized during cellular respiration.

In conclusion, mutations in genes involved in ETC would most affect the beating of Hummingbird's wing. Oxygen is involved in accepting electrons during cellular respiration. Photosynthesis produces molecules that are then oxidized in cellular respiration.

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