Answer:
as of 2018 - 7.594 billion
Explanation:
<h2>THE DIGESTIVE SYSTEM</h2>
by PierreShine
Title:
<h2>A SUGAR MOLECULES LIFE </h2>
1st entry
- Hello, there! I'm a sugar molecule who lives in a miniature chocolate Debbie Cake! I've just lived a brief life, and today is the day I delve into the unknown, the human body's interior. I'm quite apprehensive! As the ravenous teenager rips the plastic wrapper from my body, I experience a mixture of thrill and dread as I'm brought to his mouth, readied for mechanical digestion, and immediately transfixed by the boy's keen teeth. As a thick substance called saliva tears me apart into minute molecules, I begin to feel the incredible amount of anguish coursing through my body. This must be the "chemical digestion" I'd heard about! I degrade when the boy swallows me.
2nd entry
- I can feel the heart sphincter loosen as I pass through it. I'm waiting...and then the stomach secretes hydrochloric acid into the esophagus, creating the teenager's acid reflux! Now I'm in a muddle with hydrochloric acid, pepsin, and mucus generated by the stomach wall glands.
3rd entry
- I'm now slipping through the body at a breakneck speed! The small intestine appears to be visible! It's like a gigantic slide, with such a small opening, yet I'll slide right in!
4th entry
- Simply floating here and riding through the water and other fluids released by the stomach, such as hydrochloric acid, pepsin, and mucus, or chyme, which is soupy food that used to be solids.
5th entry
- I'm absorbed into the lining of the small intestine by the capillaries, and I know I've accomplished my goal! I can see the light now.
6th entry
- In the small intestine, the coolness is still present. I'm not sure I'll go to the big intestine; it appears that it's only for water and water-soluble vitamins. Whoa! I'm glad to see all of my sugar molecule pals here! We've all started clumping together and forming a solid!
7th entry
- Isn't it possible that we're about to leave? There isn't much water or drink in this place! But we're being pushed! We're on our way down! I notice an opening and believe we're about to leave the body!
Answer:
Evidence of Sea Floor Spreading Harry Hess’s hypothesis about seafloor spreading had collected several pieces of evidence to support the theory. This evidence was from the investigations of the molten material, seafloor drilling, radiometric age dating and fossil ages, and the magnetic stripes.
Explanation:
(winks and runs off)
It is called magma when in is under the earths crust, but above the surface it is called lava. So the answer would be "B."
Answer:
Enzyme: A biomolecule that speed up the rate of chemical reactions without being used up.
Substrate: A substance or chemical that enter the chemical reaction and is being converted into a new substance (product).
Competitive enzyme inhibition: Inhibition of enzyme's activity by binding of inhibitor to substrate binding site of the enzyme.
Explanation:
Enzymes are the biomolecules that serve to increase the rate of reactions by lowering down the required activation energy. The enzyme is never used up during reactions.
Substrates are the chemicals that undergo a chemical change and produce products.
For example, Glucose is the substrate for hexokinase enzyme and is converted into glucose 6 phosphate (the product).
When the inhibitor competes with the substrate for the binding site on the enzyme and does not allow the substrate to bind to the enzyme, the process is called competitive enzyme inhibition. It can be overcome by increasing the concentration of substrate in the system.
