What are the monomer 'building blocks' that make up the protein? (a) Monosaccharides (b) Glycerol molecules (c) Amino acid (d) Fatty acid (e) Cholesterol molecules Proteins: Proteins are large macromolecules that confo...
(a) What are the four organic molecules composed of? (b) Which one can cross a cell membrane? (c) Why? Important organic molecules in the body: The four organic molecules important to humans are carbohydrates, proteins, lipids, and nucleic acids. Carbohydrates,...
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First announced in April, 2016, the tax which applies to soft drinks containing more than 5g of sugar per 100ml, was introduced to help reduce childhood obesity (肥胖). It is believed that today’s children and teenagers are consuming three times the recommended level of sugar, putting them...
Here, it's worth noting that there are two types of cell walls in plants. These include: Primary Cell Wall Found in higher plants, the primary cell wall consists of cellulose (a polysaccharide), hemicellulose, and pectin. In addition, this wall has been shown to contain a number of other...
While you can't mix pee and bleach, there is a way to deal with the situation when your whole house smells like dog urine. There are a lot of commercially available options marketed as enzymatic cleaners. These products contain enzymes, which are biological molecules that break down compounds...
Simple carbohydrates are smaller. A simple carb is made of just one or two sugar molecules. These are also known as monosaccharides and disaccharides. The three monosaccharides found in food are glucose, fructose, and galactose. They combine in different pairs to make the disaccharides sucrose, ma...
Perms work by affecting the keratin in your hair. Keratin is a protein that makes up about 95% of your hair and forms the structure of your individual hairs. The bonds between keratin molecules are what react to the perm treatment and allow your hair to hold a new shape. ...
Phospholipids are amphipathic molecules, meaning that they have hydrophobic (tail) and hydrophilic (head) parts. The heads all align next to each other facing the outside water environment, and the tails align together on the inside. These molecules are therefore g...
What proteins sit in the membrane and do the work of the membrane, such as recognition, receptors, and transporters? What kind of molecules can diffuse freely through the plasma membrane without using a protein channel? What are the fundamental molecules that compose the cell...