The energy to make ATP comes from glucose. Cells convert glucose to ATP in a process called cellular respiration. Cellular respiration: process of turning glucose into energy In the form of ATP.
Explanation: Most, if not all plants are producers, and they make their own food using sunlight and raw materials, through a process called "photosynthesis". Plants get their energy in form of starch whereas animals get it in form of glycogen.
The primary source of energy for animals is carbohydrates, primarily glucose: the body's fuel. The digestible carbohydrates in an animal's diet are converted to glucose molecules and into energy through a series of catabolic chemical reactions. Adenosine triphosphate, or ATP, is the primary energy currency in cells.
In the depths of the ocean, far beyond where sunlight can penetrate, scientists have found several species of “Vantablack†fish. These fish actually absorb more than 99.5% of the light that hits them, making them nearly undetectable in the water.
What animals can see UV light?
- Butterflies can see in UV.
- Reindeers are able to see in UV.
- Some birds feed their young using UV.
- Some birds also UV to find mates and hunt.
- Bees can see in UV.
- Sockeye salmon use UV to find food.
- Scorpions are highly visible in UV.
- Cats and dogs might be able to see in UV too.
Animals don't need energy from the sun, not directly anyway. Animals get energy from the food they eat. However, that food either got its energy by eating other food, or by photosynthesis, and sooner or later almost all energy on Earth comes from the sun.
It may be color, as much as the intensity of light, that lets our brains know what time of day or night it is, they suggest. In lab experiments, mice where exposed to different visual stimuli while the researchers recorded the electrical activity in the area of their brains that serves as the biological clock.
Sunlight is necessary for plants to grow, and to provide energy to warm the earth's atmosphere. Light intensity controls plant growth. Light duration affects plant flowering and animal/insect habits. At the other maximum, some plants and animals only survive by being submersed in water.
What they found suggests that most mammals can, in fact, see UV light—including dogs, cats, ferrets, and reindeer. Unlike humans, these mammals have lenses that allow UV light though. Even though they lack the specialized UV-sensitive type of cone, the other three kinds of cones can combine to make up for it.
We named this process photosynthesis (which roughly means "making things [food] from light"). Without sunlight, plants could not survive. The next level of the food chain is made up of herbivores, animals that eat plants. Since herbivores depend on plants to survive, herbivores could not survive without sunlight.
Without the Sun's rays, all photosynthesis on Earth would stop. All plants would die and, eventually, all animals that rely on plants for food — including humans — would die, too.