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Enzymes are biological catalysts that speed up chemical reactions by providing an alternative reaction pathway with lower activation energy.

Homeostasis is maintaining a constant internal environment. It works by using control systems and allows cells to function normally.

The water potential of the concentrated sugar solution is much lower than the water potential inside the cells of the potato chip. Therefore, the water molecules move down a concentration gradient out of ...

An increase in temperature increases the activation energy of the atoms or molecules and therefore increases their net movement across a partially permeable membrane, increasing the rate of diffusion. A d...

Firstly, deoxygenated blood enters the top right chamber of the heart called the right atrium. It flows through to the chamber below, called the right ventricle. It then gets pumped to the lungs through t...