The first step was to peel two potato strips. Then we had to put both in two different containers with different solutions for half an hour. When we took away the strips we realized that one was shorter with the cells more flacid, and the other became longer and stiffer, because of the water inside of it. Sigue leyendo →

Xylem cell: you can found it in stems, roots and leave of plants. Its function is to transport water and mineral salts; also it helps to support the plant.

Root Hair Cell: You can find it near the ends of plant roots. Its function is to aborb water and mineral salts.

Palisade Cell: It is found beneath the epidermis of a leaf. Its function is the photosynthesis.

Welcome to our new topic: CELLS

We have already learnt that there are multicellular and unicellular organisms. That is to say, that some living organisms are made of one cell and others of more than one cell. So….what is a cell?

1- Read the text 2.1 “Cell structure and organisation”, page 15 and solve exercise 1.

2- Search in the web pictures where examples of structures named in the exercise above are shown. (stomach,tissue,body system, organs, organism, cell, root). Add them in a new post in your blog. Remember to label the pictures and write down the meaning of each word.

Stomach: an animal organ that process food.

Tissue: grouped cells of the same type

Organs: a group of tissues that work together.

Body system: a group of organs that work together

Organism: a living thing.

Cell: the basic unit of all living things

Root: a plant organ that absorbs water.