If we were to compare the cells im the plant leaves to the cell in the plant roots , we would expect the leaf cells to contain many more

Of the following given choice;

A) CHLOROPLASTS

B) LEUCOPLASTS

C) NUCLEI

D) RIBOSOMES

The answer is; A

Chloroplasts are pigmented plastids (unlike leucoplasts), are significant in photosynthesis by autotrophs.  They have chlorophyll pigment that taps sunlight and uses the energy to split water molecules (in a process called photolysis). The hydrogen atoms are then used to reduce carbon dioxide to carbohydrates. SIcne the roots are under the soil surface, rarely do they get exposed to sunlight. Therefore, they naturally have very few chloroplasts in comparison to the leaves.

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.