the stem
The tomato fruit is edible, the rest of the plant is not.
Because the seeds of the tomato plant form inside the tomato. That's what a fruit is, the part of the plant that contains the seeds.
The fruit.
The most obvious answer is that Tomato plants have to photosynthesise using in part energy from the sun. If they did not have this energy from the sun and photosynthesis the plant would not be able to grow. Another way a tomato plant can be traced back to the sun is that when the earth was created it was essentially spat out by the sun. In this way all tomato plants are made of matter that was once part of the sun.
the roots
No, they are poisonous. The only edible part of the plant is the tomato(fruit).
The pistil (not 'pistol'; if a plant had that we would be living in a dangerous world).
The part of the tomato plant that you eat, such as the tomato itself, is classified as a fruit by botanists. In botanical terms, a fruit is the mature ovary of a flower that typically contains seeds. This is why tomatoes fall under the category of fruits, despite culinary perceptions.
The fruit. The fruit of any plant is the part that carries the seed. So that means a pumpkin is a fruit so is a cucumber and a tomato
Yes, you can save your tomato plant if it broke by carefully supporting the broken part with a splint or stake, and providing proper care such as watering and fertilizing to help it heal and continue growing.
There really is no scientific word for it although it can also be referred to as either a stem or stalk.
The part of the sweet potato plant that you eat is the root. The entire root is edible.