1. A student creates a table to compare the function of macromolecules found in a human cell. However, the top of the table where the macromolecule headings were located was cut off. The student wants to place the headings back on the table from left to right. Which sequence depicts the correct order of headings that pairs them with the appropriate function? A) Carbohydrate, Lipid, Nucleic Acid, Protein

B) Lipid, Carbohydrate, Nucleic Acid, Protein

C) Carbohydrate, Lipid, Protein, Nucleic Acid

D) Lipid, Carbohydrate, Protein, Nucleic Acid

2. When examining the major macromolecules in the cell, a student isolates two molecule types that are directly responsible for cellular energy. A comparison of which molecule types will be most likely to include the molecules primarily responsible for cellular energy?

A) Proteins and Lipids

B) Carbohydrates and Lipids

C) Proteins and Carbohydrates

D) Carbohydrates and Nucleic Acids

Last week i was assigned a thematic. we have groups of three but the people i was assigned with haven't been in school for days. i would appreciate if anyone can me with my thematic . i highlighted most of the important steps and i circled my thematic topic. in desperate need : ( its due on february 19

In which situations is the principle of cross-cutting relationship useful in determining relative age?

The kidney filters potentially toxic substances in the blood, and thus “clears” the blood of those substances. this clearance function is dependent upon and proportional to the diffusion gradient of the substance across filtering capillaries, i.e. if the concentration of the substance is doubled, twice as much will be cleared from each ml of blood that is filtered. suppose that the body produces a constant amount of a substance x per unit of time. the kidneys eliminate substance x at a rate directly proportional to the concentration of the substance and the volume of blood cleared each minute (c): elimination = c × [x], where [x] is the steady-state concentration of substance x. imagine an individual with an initial concentration of x equal to [x]0 who develops kidney disease. her baseline clearance c0 drops to one half of the original (½c0). what is the new steady state concentration of x? (for simplicity, assume that substance x is 100% filtered by the kidney).