Amino acids are amphoteric organic compounds, since in their structure they contain an amino group (which is responsible for the basic properties) and a carboxyl group (these are
Enzymes are proteins, and proteins are denatured (destruction of the protein structure) at high temperatures, and at low temperatures their activity decreases, although their structure remains intact.
1). Meals. Plant organisms are autotrophs, have plastids, animals are heterotrophs; 2). Animal organisms are usually capable of active movement (with the help of cilia, flagella), but plant
Lysosomes are single-membrane organelles of a cell that contain hydrolytic enzymes. Therefore, one of their functions is the splitting of dead cellular organelles and, if the cell is
1). For the muscles to work, ATP energy is needed, which is formed as a result of oxygen oxidation of glucose. Therefore, breathing becomes more frequent, increasing gas
Nerve tissue has the ability to be excited and transmit a nerve impulse. It consists of nerve cells – neurons, which consist of bodies and processes: short (dendrites)
A biocenosis is a historically formed collection of all animals, plants, fungi and microorganisms that inhabit one territory and are interconnected. Examples are collections of organisms in a
A person uses the denaturation ability of protein in cooking, for example: denaturation of egg white albumin when boiling eggs, denaturation of muscle proteins when frying meat.