BHS Biology Guide

Cellular Reproduction & Sexual Reproduction

Biology

Quarter 2

McGraw Hill Module 9

Engage → Interactive Content: Cellular Reproduction

● Chromebook 145 Min

Lesson1:

220

Cellular Reproduction

Focus Question: What are the primary stages of the cell cycle?

Explore & Expand →

● Online book ● Question board ● Jello ● Water with ● Jello Lab - Rateof diffusion ● White poster board for cell cycle ● Markers ● Guide notes for Cell Cycle presentations ● Mitotic Index Lab dark color dye

221 229

Pair students in pairs and have them discuss fgure 1 on pg 221. (ration to surface volume area) After the partner discussion, have students formulate a claim to why cell size is important and have them put it on the question board. Follow up with a demonstration of different size pieces of jello. Place each cube into a luke warm dark dye of a different color. Make students calculate the rate of diffusion (15 minutes) Follow up questions: Why would each Jello cube have different diffusion rates? How does this compare to the importance of cell size? Expand on the importance of why a high ratio of surface area to volume benefts the cell (Shift of concepts from cell transports to DNA) ____________________________________ Clarify a Preconception Ask: Are genes and chromosomes the (Tie back to the importance of cell structures and their functions)