Answer:
<u>3. exothermic, because the products are at a lower energy state in the reactants</u>
Explanation:
It is also because the average enthalpy is negative.
![{ \boxed{ \triangle H = \triangle products - \triangle reactants}}](https://tex.z-dn.net/?f=%7B%20%5Cboxed%7B%20%5Ctriangle%20H%20%3D%20%5Ctriangle%20products%20-%20%5Ctriangle%20reactants%7D%7D)
since products are at lower energy state, the ∆H will be negative. But the negative represents loss of heat hence exothermic reaction.
Both the smooth and rough endoplasmic reticulum help in the production and storage of proteins The main difference is that one contains ribosomes on it and the other does not. The rough endoplasmic reticulum has ribosomes on its surface. This is what give the RER a "rough" appearance.
Answer: Hills are elevations of the earth's surface that have distinct summits, but are lower in elevation than mountains. Hills may be formed by a buildup of rock debris or sand deposited by glaciers and wind. Hills may be created by faults. Faults are a slight crack in the earth which can cause earthquakes.
C, It was longest tornado i took the test
Answer:
B
Explanation:
During the Krebs cycle in the matrix of the mitochondria, H+ ions are usually pumped to the intermembrane space creating a proton-motive force. This potential difference is harness by ATP synthase to make ATPs as the H+ ions 'drain' back to the matrix of the mitochondria. As these H+ get to the matrix, they ultimately reduce oxygen to water. In this reaction, oxygen also acts as the ultimate electron acceptor in the Krebs cycle accepting 4 electrons from NADPH/ NADH (so these molecules can be recycled back as NAD+ and NADP+).
4H⁺ + O₂ + 4 ⁻e → 2H₂O