Question

graph 1. amount of chlorophyll with different amounts of light

1. approximately how much chlorophyll was present in the low - light plants after 24 hours?

a about 200 micrograms/g
b about 225 micrograms/g
c about 300 micrograms/g
d about 400 micrograms/g

Explanation:

Step1: Analyze the graph for low - light (solid line) at 24 hours.

Looking at the y - axis (amount of chlorophyll in $\mu g/g$) and x - axis (hours). At 24 hours, the solid line (low light) is between 200 and 300, closer to 200 but let's check the options. Wait, the low - light line at 24 hours: the y - axis has marks at 0, 100, 200, 300. The low - light (solid) at 24 hours: looking at the graph, the point for low light at 24 hours is around 200? Wait no, wait the moderate light (dashed) at 24 is around 250? Wait no, the low - light (solid) line: at 12 hours it's around 75, then at 24 hours, let's see the y - axis. The options: A is 200, B is 225, C is 300. Wait, maybe I misread. Wait the low - light line (solid) at 24 hours: the y - axis, the 200 mark, then the point for low light at 24 is at 200? Wait no, the dashed line (moderate) at 24 is at 250? Wait no, the graph: x - axis hours (0,3,5,8,12,24,48), y - axis amount of chlorophyll. The solid line (low light) starts at 0, goes up to 8 hours (around 75), then at 12 hours maybe 75, then at 24 hours, the solid line (low light) is at 200? Wait the option A is about 200, but wait maybe the correct one is A? Wait no, wait the user's selected option is A, but let's re - check. Wait the low - light (solid) at 24 hours: the y - axis, the 200 line, so the amount is about 200 $\mu g/g$. So the correct option is A.

Answer:

A. about 200 micrograms/g