Biology, 08.11.2019 00:31 RealGibbon857
Molecular oxygen (o2), which is required for the production of atp by mitochondria, must pass through at least three membranes to get to the enzymes where it is used. o2 is also produced in chloroplasts and must pass through at least four membranes to be released from the plant. how does o2 move across biological membranes? a. there are numerous protein transporters that allow o2 to travel across membranes. b. o2 is nonpolar, and very small, so it can diffuse across the membrane. c. o2 undergoes a chemical reaction that binds it to other substances that are transported across the membranes. d. o2 is hydrophilic and travels with water across the membranes.
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Biology, 21.06.2019 20:30
Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?
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Biology, 22.06.2019 01:10
Which best describes meiosis? a. it produces cells that are identical to the original cell b. it is responsible for the replacement of damaged skin cells c. it is responsible for growth of the organism d. it produces male and female sex cells
Answers: 2
Biology, 22.06.2019 02:00
Many farmers prefer cattle without horns because it is safer for their herds. the allele for no horns (n) is dominant to the allele for the presence of horns (n). a farmer mates a male with horns to a heterozygous female without horns. what is the chance that the offspring will have horns?
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Biology, 22.06.2019 09:20
Which statement explains how gravity and intertia work together
Answers: 1
Molecular oxygen (o2), which is required for the production of atp by mitochondria, must pass throug...
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