In active cells, pO_2 may be 10 torr at the cell surface and 1 torr at the mitochondria (the organelles where oxidative metabolism occurs).
A) How does myoglobin (p_50 = 2.8 torr, where p_50 is the partial pressure of oxygen required to 50% saturate myoglobin) facilitate the diffusion of O_2 through these cells? (Myoglobin does not just pick up the O_2 at the cell membrane and carry it over to the mitochondrial membrane.)
B) Active muscles consume O_2 much faster than do other tissues. Would myoglobin also be an effective O_2 - transport protein in other tissues? Explain.
Answers: 2
Biology, 21.06.2019 17:50
Aeukaryotic cell must be from a plant if the cell a) a nucleus b) a nuclear envelope c) cytoplasm d) a cell wall
Answers: 1
Biology, 21.06.2019 21:00
~~16. while watching a special on animals, brianna discovers that hares tend to lose heat through their ears. based on this and what is known about surface-to-volume ratios, propose an explanation as to why hares that live in hot climates (such as the desert) have large, extended ears
Answers: 1
Biology, 22.06.2019 01:10
Which of the following is a difference between active transport and facilitated diffusion? view available hint(s)which of the following is a difference between active transport and facilitated diffusion? facilitated diffusion can move solutes against a concentration gradient, and active transport cannot.active transport involves transport proteins, and facilitated diffusion does not.facilitated diffusion involves transport proteins, and active transport does not.active transport requires the expenditure of cellular energy, and facilitated diffusion does not.
Answers: 1
In active cells, pO_2 may be 10 torr at the cell surface and 1 torr at the mitochondria (the organel...
Mathematics, 19.05.2020 02:58
Advanced Placement (AP), 19.05.2020 02:58
Biology, 19.05.2020 02:58
Mathematics, 19.05.2020 02:58
Geography, 19.05.2020 02:58
Mathematics, 19.05.2020 02:58
Mathematics, 19.05.2020 02:58
History, 19.05.2020 02:58
History, 19.05.2020 02:58
English, 19.05.2020 02:58
Mathematics, 19.05.2020 02:58
History, 19.05.2020 02:58
Mathematics, 19.05.2020 02:58