QUESTION IMAGE
Question
- in a eukaryotic cell, where does most aerobic respiration take place?
a in the cytoplasm
b in chloroplasts
c in mitochondria
d in the golgi complex
- bacteria in the intestines of humans break down glucose into lactic acid. which cellular process do these bacteria most likely use to produce energy?
a aerobic respiration
b photosynthesis
c anaerobic respiration
d carbohydrate polymerization
- after glycolysis, what will happen next in the leaf cells of a tobacco plant in the absence of oxygen?
a the krebs cycle
b pyruvination
c lactic acid fermentation
d alcoholic fermentation
- all organisms undergo some form of cellular respiration. what is the purpose of this process?
a to make food for the cells
b to convert glucose into cellular energy
c to repair damaged organelles
d to prevent overgrowth of the organism
- which of the following shows the correct net reaction for aerobic respiration?
a $ce{c6h12o6 + 6h2o -> 6co2 + 6o2 + atp}$
b $ce{c6h12o6 + 6o2 -> 6co2 + 6h2o + atp}$
c $ce{c6h12o6 + 6co2 -> 6h2o + 6o2 + atp}$
d $ce{c6h12o6 + 6o2 -> c2h5oh + co2 + atp}$
Question 6
Aerobic respiration in eukaryotes occurs in mitochondria. Cytoplasm is for glycolysis (anaerobic part), chloroplasts for photosynthesis, Golgi complex for processing proteins. So the correct answer is the option about mitochondria.
Intestinal bacteria breaking down glucose into lactic acid use anaerobic respiration (lactic acid fermentation is part of anaerobic). Aerobic needs oxygen, photosynthesis is in plants, carbohydrate polymerization is not energy production here. So anaerobic respiration is correct.
In absence of oxygen, plant cells (tobacco) do alcoholic fermentation. Krebs cycle needs oxygen, pyruvination is part of glycolysis, lactic acid fermentation is in animals. So alcoholic fermentation is next.
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C. in mitochondria