What macromolecules and biomolecules are critical for
cellular respiration to occur?

Glucose

Explanation:

Glucose is the molecule that is needed for cellular respiration. The glucose monomer is also a building block for carbohydrate polymers such as starch, glycogen and cellulose. Proteins have a number of important functions. These include their roles in structures, transport, storage, hormonal proteins and enzymes.

I HoPe ThiS HeLpS

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.