MrBadmusAI

Year 7 · Autumn Second Half

Biology

3 lessons from 1 unit.

Unit B1 · lessons 4 to 6 of 6

Cells and organisation

You are built from about thirty trillion cells, and not one of them knows you exist. This unit starts by asking what makes something alive at all, goes down to a single cell, and comes back up to a whole organism.

  1. 04Specialised cellsSystemOne cell in your body throws its nucleus away. Why would anything do that?Open this lesson
  2. 05Levels of organisationSystemA dish of living stomach cells cannot digest a sandwich. Your stomach can. What is the difference?Open this lesson
  3. 06Unicellular organismsContrastTwo single cells, one much smaller. One is a whole animal. One is a piece of you. What tells them apart?Open this lesson

Back to all three sciences this half term The whole KS3 Biology course