Air contains __________ % of CO2 ?
Correct answer: B. 0.03-0.04
- A. 0.02-0.03
- B. 0.03-0.04
- C. 0.04-0.05
- D. 0.05-0.06
Explanation
Atmospheric carbon dioxide is approximately 0.03% to 0.04% in the traditional textbook value used in many biology examinations. Students may choose 0.04% to 0.05% because modern atmospheric carbon dioxide is close to 0.04% and is increasing, but the submitted key follows the conventional textbook range.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Cellular Respiration
Cellular respiration releases energy from glucose through glycolysis, the link reaction, the Krebs cycle and the electron transport chain, producing ATP. The pathway differs in oxygen availability: aerobic respiration uses oxygen and yields more ATP, while anaerobic respiration produces much less ATP and forms lactic acid in muscles or ethanol and carbon dioxide in yeast.
Practise Bioenergetics
1,378 free Bioenergetics MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Cellular Respiration questions
Van neil hypothesis about the production of oxygen during phosynthesis was based on the study and investigations on___________?
PS I has chlorophyll a molecule which absorbs maximum light of _________ nm ?
Visible light used in photosynthesis ranges from:__________?
The point at which there is no net exchange of gases between leaves and atmosphere is known as_____________?
Net yield of H2O in Photosynthesis is__________?
About __________ % of photosynthesis is carried by terrestrial plants, while rest occurs in ocean, lakes, and ponds?