0
If one inspects the reactions needed to burn lipids for energy, it becomes obvious that tremendous amounts of oxygen are needed and humans do not have the necessary lung capacity for this.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
What is the one limiting factors that prevents humans from using lipids for energy rather than carbohydrates?
because lipids form ketone bodies, which may be toxic.
Why is it an advantage for animals that migrate long distances to store energy as lipids rather than carbohydrates?
Fat and glycogen have different chemical properties. Fat contains more energy for mass than sugars. For birds, who need to be very light to remain aerodynamic, storing a vast majority of the energy as fat is much more efficient.
Are starches and sugars examples of carbohydrates?
Yes,they are.But you can think of them as carbohydrates at different levels......sugars are simpler than cellulose which is found in plants.Also satarch is the bit more complex carbohydrate(not as much as cellulose)which is stored in plants for their use whenever they need it...
Can some autotrophs obtain their energy from chemicals rather than sunlight to produce carbohydrates?
Yes, hydrogen sulfide
Why do you think people running marathons take high energy drinks rather than eat a food containing carbohydrates?
Because energy drinks give you more energy, but carbohydrates just give you growth. Wow you must be very stupid. GOSH
Why is ATP generated in photosynthesis rather than using light energy to directly synthesise carbohydrates?
your mum likes ATP
Why lipids have such a high energy content?
The high energy density (i.e. the relatively large amount of energy released per unit of mass) of fat stores is due to three main factors. 1) The completely reduced carbons of fatty acids have a higher energy content than the partially oxidized carbons of carbohydrates and proteins. 2) The fortuitous fact that the reduced carbons have covalent bonds to light atoms (hydrogen rather than to the heavier oxygen) means that the fully reduced hydrocarbon compounds are lighter than the partially oxidized carbohydrates. 3) Lipids are hydrophobic molecules and therefore fat stores contain little water, which would add to the weight of the molecules without adding to the energy content. Hope that helps.
Carbohydrates provide a source of energy because they?
contain available hydrogen that your body can make available to the mitochondria of your cells.
Are lipids hydrophobic or hydrophilic?
Lipids are hydrophobic. This quality means that they repel water rather than draw it in.
What foods are macromolecules?
"Biomolecules" is not a recognized term in biochemistry, rather a term such as organic molecules or macromolecules would be more appropriate. The simple answer is all foods have complex organic macromolecules such as lipids (fat), carbohydrates/sugars and protein in varying quantities and types.
Why might mammals store lipids rather than carbohydrates?
Lipids (fats) are heavier, more calorie dense and are not water soluble...which makes them a better candidate for storage in an animal system...fat is also a great insulator that helps maintain body temperature. Fat is also a better, more flexible for animals which need to move. Plants convert and store carbohydrates in the form of starch and cellulose. Cellulose is structural, not generally flexible...
What is a good source of bile?
Lipids. (Both fats and oils are lipids. Fats are solid while oils are liquid. It is more correct to use the term 'lipids' rather than just calling them 'fats')
