Biology, 18.03.2021 01:50 JuniperGalaxy
I am a semi-permeable layer around the cell that encloses the contents of the cell. What am I? *
6 points
nucleus
chloroplast
cell wall
cell membrane
Answers: 3
Biology, 22.06.2019 14:00
Vinegar has a ph of 3, and household ammonia has a ph of 11. is the concentration of h+ greatest in the vinegar or ammonia?
Answers: 1
Biology, 22.06.2019 19:20
Molecules like glucose and amino acids are not lipid soluble, so cannot cross the cell membrane by simple diffusion. instead, they are shuttled across by carrier proteins in the membrane from high to low concentration. does this process require energy from the cell? this is an example of what type of molecular movement?
Answers: 1
Biology, 22.06.2019 20:00
What is true of metabolism in its entirety in all organisms?
Answers: 3
Biology, 22.06.2019 21:30
Part a - which gene to compare? in this exercise, you will use the cytochrome c oxidase i (coi) gene to investigate relationships among salmon species. (this gene encodes a protein that functions in the mitochondrial electron transport chain.) you will compare the coi gene sequences from your salmon test samples to the standard sequences for each salmon species. in order for the coi gene to be useful for distinguishing among the different salmon species, which three statements must be true?
Answers: 2
I am a semi-permeable layer around the cell that encloses the contents of the cell. What am I? *
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