Tonya eats a peanut butter sandwich for lunch. Peanut butter contains a lot of protein, and bread is mostly starch. Tonya plans to go for a run later this afternoon. Tonya is breathing normally. What does she need from the food she ate and the air she breathes so that she can go on her run? (1pt: mention the molecules she needs for the run) How do Tonya’s body systems work together to get the molecules she needs into her cells? (2pts: describe the order they travel through - think about your model) How do her cells use these molecules for her body to run? (2pts: be sure to describe what the chemical reaction is called, where it happens, and what it releases

Considering the yellow and green pea color phenotypes studied by gregor mendel: a. what is the biochemical function of the protein that is specified by the gene responsible for the pea color phenotype? (1 point) b. a null allele of a gene is an allele that does not specify (or encode) any of the biochemical function that the gene normally provides (in other words, either no protein at all or only non-functional protein is produced from it). of the two alleles, y and y, which is more likely to be a null allele? (1 point) c. in terms of the underlying biochemistry, why is the y allele dominant to the y allele? (2 points) d. why are peas that are yy homozygotes green? (1 point) e. the amount of protein produced from a gene is roughly proportional to the number of functional copies of the gene carried by a cell or individual. what do the phenotypes of yy homozygotes, yy heterozygotes, and yy homozygotes tell us about the amount of sgr enzyme needed to produce a yellow color? explain your reasoning. (2 points)

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?

Agroup of plant cells was exposed to radiation, which damaged the chloroplasts and caused them to lose function. if the mitochondria were unharmed, what would happen to the overall function of the plant cells? a. the cells would not be able to make food, but would be able to release energy from biomolecules. b. the cells would not be able to replicate dna, but would be able to break down waste. c. the cells would not be able to break down waste, but would be able to replicate dna. d. the cells would not be able to release energy from biomolecules, but would be able to make food.