Catalase is an enzyme, a type of biological molecule composed mostly of protein, that serves as a catalyst to accelerate the breakdown of hydrogen peroxide into water and oxygen within living organisms.
Catalase is a type of biological molecule called an enzyme. Enzymes are macromolecules, primarily composed of proteins, that act as catalysts to accelerate chemical reactions within living organisms. They work by lowering the activation energy of the reaction they are catalyzing, thereby speeding up the reaction rate. Catalase serves a critical biological function by converting the harmful substance hydrogen peroxide into water and oxygen.
Enzymes function by binding to reactant molecules and facilitating bond changes in order to make the reaction occur more readily. However, they do not change the reactants' or products' free energy or alter the direction of the reaction. Instead, they simply reduce the activation energy required to reach the transition state of a chemical reaction.
Like all enzymes, catalase is highly specific to its substrate (the molecule it reacts with). In this case, the substrate is hydrogen peroxide. Importantly, like all catalysts, enzymes including catalase do not get consumed or modified during the reaction, making them reusable.
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The short answer is that velocity is the speed with a direction, while speed does not have a direction. Speed is a scalar quantity—it is the magnitude of the velocity. Speed is measured in units of distance divided by time (e.g., miles per hour, feet per second, meters per second, etc.).
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Answer:
1. It is present as the outermost layer in animal cells and lies below the cell wall in plant cells.
2. The cell membrane surrounds the cytoplasm of living cells, physically separating the intracellular components from the extracellular environment.
3. The cell membrane is semi-permeable, ie, it allows some substances to pass through it and does not allow others.
Explanation: The cell membrane (or plasma membrane) surrounds all living cells, and is the cell's most important organelle. It controls how substances can move in and out of the cell and is responsible for many other properties of the cell as well.The membranes that surround the nucleus and other organelles are almost identical to the cell membrane. Membranes are composed of phospholipids,proteins and carbohydrates arranged in a fluid mosaic structure,
Answer: small protects cell and let's things in
Explanation: because.
Answer:
It does not support his hypothesis but it gave him a clue about selecting desired characteristics. Replace the breeder by the opportunities that are in the environment and you have it. Breeders depend on variations to deliver new characteristics. If reproduction did not vary between generations, breeders will not get any new characteristics
according to David Chan,