Consistir en vs. constar de vs. comprender vs. componerse de

In Spanish, there are different ways of expressing the composition or elements that make up something. 'Consistir en', 'constar de', 'comprender' and 'componerse de' are expressions that are often used to express the concept of 'consisting of' or 'made up of'. Despite their similar meanings, they are used in slightly different contexts.

Consistir en

'Consistir en' is used to describe what something is essentially made of, or what its main characteristics are. It's often used in abstract, less tangible contexts.
La felicidad consiste en disfrutar de las pequeñas cosas.
(Happiness consists of enjoying the little things.)
El trabajo consiste en realizar investigaciones.
(The job consists of carrying out research.)

Constar de

'Constar de' implies a more concrete or fixed number of parts or components within a whole. It is usually used when the elements are countable or clearly definable.
El curso consta de diez módulos.
(The course consists of ten modules.)
Esta receta consta de tres ingredientes principales.
(This recipe consists of three main ingredients.)

Comprender

'Comprender' can be used in a similar way to 'consistir en', but with an emphasis on encompassing or including all parts or aspects of something. It can also imply understanding as part of its range of meanings.
La colección comprende obras del siglo XIX y XX.
(The collection comprises works from the 19th and 20th centuries.)
"Gestión empresarial" comprende temas como marketing, finanzas y recursos humanos.
("Business management" includes topics such as marketing, finance, and human resources.)

Componerse de

'Componerse de' explicitly conveys the idea of several components coming together to form a whole. It's often used when listing parts or elements that make up something bigger.
La comisión se compone de cinco miembros permanentes.
(The committee is composed of five permanent members.)
Las Naciones Unidas se componen de 193 estados miembros.
(The United Nations is composed of 193 member states.)

Summary

'Consistir en', 'constar de', 'comprender' and 'componerse de' offer nuanced ways of expressing the concept of composition in Spanish. While 'consistir en' tends towards abstract qualities or characteristics, 'constar de' suggests a more concrete composition, often with countable elements. 'Comprender' adds an element of comprehensiveness and potentially understanding, while 'componerse de' emphasises the assembly of different parts into a whole.