Problem.—What causes a young plant to grow?
(a) The relation of the young plant to its food supply.
(b) The outside conditions necessary for germination.
(c) What the young plant does with its food supply.
(d) How a plant or animal is able to use its food supply.
(e) How a plant or animal prepares food to use in various parts of the body.
Laboratory Suggestions
Laboratory exercise.—Examination of bean in pod. Examination and identification of parts of bean seed.
Laboratory demonstration.—Tests for the nutrients: starch, fats or oils, protein.
Laboratory demonstration.—Proof that such foods exist in bean.