The embryo takes shape

We have start looking at the topics of gametes, embryos and pregnancy. To understand better all these topics we looked at a video in class that explains how and in wich way human beings are born. Based on the video I will answer some questions.

1) What directs the sequence of events that turn a blob of cells into an embryo with specialized tissues and organs?

It´s a process called gastrulation that turns a blob of cells into a embryo, this process divide cells intro three layers, each with a specific function.

2) The narrator says that “cells talk to each other.” What does that mean? .

This "communication" between cells is actually that chemicals sings or  chemical process of a cell can trigger a reaction in a nearby cell.

3) How do cells in different parts of the embryo become different kinds of cells and organs?

In each of this cells, different genes or DNA activates, making each cell produce something different


4) What kinds of proteins are found in different cells and organs?


Crystalline:  related to the lens of the eye.
Collagen:  related with tendons, bones and skin.
Keratin:  related with hair
Haemoglobin:  Transports oxygen from the lungs to the rest of the body

5) What tells the cells which kinds of proteins to make?


The DNA and genes that are activate within each cell.

6) What is the relationship between DNA, genes, and the proteins that are produced in cells?


They are all related because DNA contains the genes that when activate tell each cell what proteins to produce in order to accomplish a specific function that help our body to work properly.