Page 3 Summary

This page focuses on the cell cycle and mitosis, presenting questions about different stages of cell division observed in an onion root tip.

Key points:

• Students are asked to describe what is happening in a photograph of a dividing cell
• The page presents data on the number of cells in different stages of the cell cycle
• It includes a calculation question about the duration of a specific stage in the cell cycle

Vocabulary: Cell cycle - The series of events that take place in a cell leading to its division and duplication.

Example: An onion root tip cell cycle lasting 16 hours is used to illustrate the concept of cell cycle duration.

The page also introduces a growth curve for E. coli bacteria, linking cell division to population growth.

Page 1 Summary

The first page introduces a question about human cheek cells viewed under a light microscope. Students are asked to label parts of the cell and identify the type of cell division body cells undergo.

Key points:

• Students must label the nucleus and cell membrane on a provided image
• The question asks about the type of cell division body cells use for growth (mitosis)
• It discusses microscope types needed to view certain cell organelles

Vocabulary: Mitosis - The process of cell division in body cells that results in two genetically identical daughter cells.

Highlight: Understanding the different types of microscopes and their capabilities is crucial for observing cellular structures.

The page also includes a question about Tobacco Mosaic Virus (TMV) and its effects on plants.

Example: TMV causes yellow patches on leaves where it has destroyed chloroplasts.