a crystal whose molecules are held together by weak physical bonding as opposed to chemical bonding. They usually are soft and have low melting points. They are also poor conductors of electricity basically due to the lack of electrons and ions in these solids. Examples of molecular crystals are- ice, solid carbon dioxide( dry ice) and rock candy. Iodine, phosphurus, sulphur, nitrogen, argon and water all form molecular crystals.
Yes, organic molecules are generally made from a small collection of simple precursors called monomers. These monomers can join together through chemical bonds to form larger molecules known as polymers, which make up the diverse array of organic compounds found in living organisms.
In the mouth, small molecules of protein are broken down by enzymes called proteases. These enzymes break down the protein molecules into smaller peptides and amino acids, which can then be absorbed through the lining of the small intestine for use by the body.
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This process is called passive diffusion or simple diffusion. It does not require energy input and relies on the concentration gradient to drive the movement of molecules across the membrane.
The chemical process by which complex molecules of proteins are made from simple molecules is called protein synthesis. It involves transcription to generate RNA from DNA, and translation to assemble amino acids into a protein based on the RNA template.
no
Yes, organic molecules are generally made from a small collection of simple precursors called monomers. These monomers can join together through chemical bonds to form larger molecules known as polymers, which make up the diverse array of organic compounds found in living organisms.
Simple molecules are further broken down in cells in a process called catabolism.
This process is called synthesis.
Small polar molecules can pass through the plasma membrane through a process called simple diffusion, where they move from an area of high concentration to low concentration without the need for energy or a transport protein.
Aleksander Oparin
Nutrient molecules pass from the small intestine into the through tiny structures called villi.
Fermination
Propane consists of small molecules. It is a simple hydrocarbon compound that is composed of three carbon atoms and eight hydrogen atoms.
The process of breaking down large molecules into smaller molecules is called catabolism. This process releases energy that cells can use for various functions.
plasmids
Amino acids.