BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Celery stalks are the petioles (“stalks”) of compound leaves. They are not stems, in spite of widespread misrepresentation in elementary school lesson plans. They may look like stems to some people because they are thick and fleshy and have prominent veins running lengthwise through them.

Detailed explanation-2: -celery, (Apium graveolens), herbaceous plant of the parsley family (Apiaceae).

Detailed explanation-3: -Stem vegetables include asparagus and kohlrabi. Among the edible tubers, or underground stems, are potatoes. The leaf and leafstalk vegetables include brussels sprouts, cabbage, celery, lettuce, rhubarb, and spinach.

Detailed explanation-4: -So, celery sticks and ribs are not stems. They are part of the leaf, in fact, they are the leaf stalk, which is also called petiole. There are other ways to determine this too.