Gas Exchange

In Biology we are studying the Respiratory System. Today we learnt about the gas exchange and we made a chart about it.

Inspired air Expired Air


21% 16% Respiration (raw materials)

Carbon Dioxide



Respiration (waste products)

Water vapour (humidity)


 Always high (100%)

Depends on the environment/atmosphere



Always warm


Dust Variable

Few, or no dust

Ciliated cells


Description of a remote place

In Language we were asked to write a description of a remote area, where temperatures are extreme, and very few people live. I chose the village of Salinas de Bustos, in La Rioja. And this is my description. 

Located on the south of La Rioja province, Salinas de Bustos is a small town that embodies a small amount of people. This place is full of humble but goodhearted people, babies, children, adults and old people.

Many activities can be done there, from football or running, to weaving or going to school. As it is a small poor town, there is only one school for everyone. Everyday children go there filled with joy, anxious to learn something new. Screams and the stepping feet on the field as they run can be heard from long distances. Around the school, the homes of all the neighbours are situated very close to each other. Walking around the houses and its patios, a lot of fences trap pigs, sheeps, lambs, chickens which then are used to feed the families. The stinky smell overruns the atmosphere.
The weather there is very extreme. In summer,  it is almost impossible to go out do to the scorching heat that overwhelms you. In winter, however, temperatures reach the 0° so you can see the field filled with fires that keep people’s body temperatures despite the freeze.

Recently, Chile’s earthquake hit this area so it’s now a bit devastated. However, the residents are doing the best to reconstruct the damaged houses.

Despite Salinas de Bustos not being the richest area or having many resources, it is outstanding for it’s people and their sacrifice.

TP Computación: Innovaciones Sociales

Hoy en Computación empezamos con un trabajo en el cual tuvimos que elegir uno de los siguientes proyectos de innovaciones sociales propuestos por Mariana:

Financiamiento colectivo «crowdfunding»

Productos con licencia Creative Commons (CC)

The fun theory

Radiohead – Rainbow…/…/magazine/16-01/ff_yorke……/radiohead-caso-in-rainbow

Purificador de agua LifeStraw personal – soluciones pequeñas que generan grandes cambios…/purificador-agua-lifestraw-pe…

Luego debíamos crear un mapa conceptual resumiendo y analizando el proyecto elegido.

Yo elegí «The Fun Theory» y este es mi mapa conceptual.


In Biology we started with the new topic: Respiration. Thus we were asked to do some activities on this topic. These is the task on Male’s blog. I worked with Flor and Bauti.

  1. The uses of energy in our body are:
  • for cells to contract our muscles in order to be able to move our body.
  • energy is used in reactions that produce different molecules
  • to build up larger molecules from smaller ones.
  • to  produce heat to keep their body temperature steady and constant.
  • cell division, to repair damaged tissue
  • to move substances across cell membranes up their concentration gradient (active transport)
  • to transmit nerve impulses


3. Anaerobic respiration produces an oxygen debt. This is the amount of oxygen needed to oxidise lactic acid to carbon dioxide and water. The existence of an oxygen debt explains why we continue to breathe deeply and quickly for a while after exercise.

4. This is a video that explains why breathing rate doesn’t slow down immediately after exercising.

In the minute 1:36 he begins to explain why and in the minute 1:50 he explicitly says that air also goes to muscles to help them recover afterwards.