Category: Sciences

Endocytosis and exocytosis

The endocytosis is the transport of particles and substances inside the cell, while the exocytosis is intracellular transporting material outward. Both processes are due to the cell’s need to maintain an exchange of materials with its environment for its survival. Both endocytosis and exocytosis are mechanisms involved in the transport of materials across the plasma membrane. This is a type of

Kinetic and potential energy

The kinetic energy is the energy associated with movement and potential energy is the energy associated with the position in a system. Energy, in general, is the ability to do work. Both kinetic and potential energy represent the two fundamental types of existing energy . Any other energy is a different version of kinetic or potential energy or a combination of both. For example, mechanical energy

The gaseous state and plasma

Gases and plasmas are states of matter, that is, ways in which the components of matter are organized, distributed and interact in a given space. In the case of gases , their components are dispersed, trying to occupy as much space as possible. Plasma , on the other hand, is partially ionized gas. Gases Plasma Definition State of matter

Monocots and dicots

The monocots are flowering plants whose seeds have one cotyledon and dicots are those flowering plants whose seeds have two cotyledons. A cotyledon is a leaf-like structure found in the seed, it is an embryonic leaf. Within the plant kingdom, those seed plants are divided into gymnosperms and angiosperms. Angiosperms are the group of plants that have flowers, within which we

Types of triangles

The types of triangles are differentiated by the size of their sides and by the measure of their internal angles . Remember that the triangle is a polygon with three sides, connected by its three vertices that form three angles. Types of triangles Triangle Name Characteristic According to the size of its sides Isosceles Two sides of equal

Reproduction types

The types of reproduction of living beings are the mechanisms by which individuals (unicellular and multicellular) produce new individuals and the species propagates. In general, there are two types of reproduction: asexual and sexual ; each one in turn presents various strategies. Asexual Sexual Definition Reproduction of an individual being Reproduction that involves the fusion of two gametes to

Angiosperm and gymnosperm

 angiosperms are provided flowering plants, the gymnosperms are plants that do not have flowers. Both groups belong to spermatophytes or seed plants . The seeds are the ovules (female cell) fertilized by the male cell contained in the pollen, which contains the embryo of the plant. Angiosperma Gimnosperma Definition Plants with flowers that produce seeds enclosed in a fruit. Seed plants whose

74 examples of organic and inorganic compounds

The organic compounds are those compounds of biological origin, i.e. are produced by living organisms or derived from the same, hence the name. They are characterized by having carbon as a base element, to which other elements such as hydrogen, oxygen, nitrogen and many others are joined. They are among the most abundant and diverse on planet Earth and

Genes and chromosomes

A gene is a portion of deoxyribonucleic acid (DNA) that codes for a protein or RNA. A chromosome is a nuclear structure that corresponds to the packaging of DNA where a number of genes are found. In other words, the chromosome is a large portion of DNA, the molecule in charge of the genetic information of living beings, which is expressed

Genotype and phenotype

The genotype is the genetic code of the cells of an organism, which determines the characteristics of an individual. The phenotype is the trait that we can observe, either as a physical characteristic or as a behavior. The phenotype depends on the genotype, and can additionally be influenced by environmental and nutritional factors. Genotype Phenotype Definition Genetic composition