Photosynthesis is important to plants, animals, and humans! So no. It's most vital to plants.
no
No, because only plants go trough photosynthesis.
chlorophyll
No, because chloroplast is only found in plants, which they use for photosynthesis.
oxygen.
Oxygen and carbohydrates are products of photosynthesis that are important to humans.
Yes, it certainly does. (Not negatively, though) In the process, oxygen is released, which is vital for humans and animals. So, it would be incorrect to say that it doesn't affect anything..:)
Creating sugars for the plant, by the process of photosynthesis. This process also takes in Carbon Dioxide (CO2) and gives out Oxygen. Which is vital to all animals, including humans.
Humans carry out cellular respiration to generate ATP for energy production. Photosynthesis is a process performed by plants, algae, and some bacteria to convert sunlight into energy. Humans cannot perform photosynthesis as we lack the necessary organelles, such as chloroplasts.
= Chlorophyll =
chloroplast
Humans themselves do not use photosynthesis, but because humans depend on plants, as well as other animals that eat plants, in order to live, no, humans could not live without photosynthesis. Unless plants had another way to make food for themselves, humans could not live without photosynthesis.