Laboratornaia Rabota 2 Po Biologii 9 Klass I.n Ponomarenko Onlain Apr 2026

State that tissues consist of specialized cells that perform specific functions, and their structure is directly related to those functions. 🌱 Topic 2: Observing Dividing Plant Cells

Compare the observed samples with illustrations in the textbook (typically Figures 11–13). Sketch the observed tissues and label key features.

To observe stages of mitosis (cell division) in plant cells. State that tissues consist of specialized cells that

💡 The structure of a cell or tissue is always linked to its biological role.

Microscope and prepared slides of plant root tips (e.g., onion root tip). Key Concepts to Identify: Chromosomes: Look for condensed genetic material. To observe stages of mitosis (cell division) in plant cells

To study the microscopic structure of various cells and tissues.

In the 9th-grade biology curriculum by , Laboratory Work No. 2 typically focuses on observing biological structures under a microscope. Depending on the specific edition of the textbook, this lab generally covers one of two topics: "Cells and Tissues under a Microscope" or "Observing Dividing Plant Cells" . 🔬 Topic 1: Cells and Tissues under a Microscope Key Concepts to Identify: Chromosomes: Look for condensed

In some versions of the 9th-grade curriculum , this lab focuses on the processes of cell reproduction.