0
What else can I help you with?
Explain why humans obtain limiting energy from eating lettuce?
As lettuce's molecular structure is mainly made up of water (H2O), humans are unable to obtain energy, nor vitamins and nutrients from that source of food. As well as being made up of mainly water, lettuce, is a plant of cellulase. Therefore, humans need a more adequate source of food to help the body maintain its energy levels
How many calories are in oxygen?
Oxygen does not contain calories because it is not a source of energy for the body.
Identify the primary source of energy for humans?
The primary source of energy for humans is food, which provides the body with essential nutrients and calories to power various bodily functions and activities. The body converts the energy from food into ATP (adenosine triphosphate) through metabolic processes, which is used for cellular energy.
Animals obtain their energy and carbon from what?
Animals obtain their energy and carbon from the food they ingest. Carbohydrates and protein are a good source of carbon and energy.
The main source of energy for humans is?
The Sun.
Do humans ultimately get their energy from the sun?
Yes, humans ultimately get their energy from the sun, primarily through the food we consume. Plants convert solar energy into chemical energy via photosynthesis, creating the basis of the food chain. When humans eat plants or animals that have fed on plants, we indirectly obtain energy derived from sunlight. Thus, the sun is the original source of energy that sustains human life.
What nutrients provides long lasting energy and has 9 calories?
Fats contain 9 calories per gram and is a long lasting energy source.
How many calories does metal have?
Metal does not contain calories because it is an inorganic substance and not a source of energy like food.
What is the most abundant and least expensive source of calories in the human body?
The most abundant source of calories in the human body is glycogen, which is stored in the liver and muscles, while the least expensive source of calories is body fat, which is used as a reserve energy source.
What is the main source of energy in humans?
Food we eat.
What are in peanuts that make it contain energy?
Energy in all foods comes from calories, which are in starches, fats and proteins. Peanuts contain a high percentage of fat, which is the source of most of their calories, or energy.
What is the abundant energy source capable of being harnessed by humans?
Solar Energy
