Embrions

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

Gastrulating is the sequence of events that transform a blob cell into an embryo

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

This means that cells can have a type of communication with each other so a cell can trigger a response in a far away cell.

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

In all the cells, different group of genes are turned on, making the cell different from others.

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

We can find Collagen, Actin & Myosin, Hemoglobin, etc.

What tells the cells which kinds of proteins to make?

Cells make different proteins in response to the chemical reactions they receive.

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

After a very important process, the nucleus of the cell can read the DNA and activate certain gens that will later on create a protein.