Biology: Chapter 6 Tissues and Cell Specialization

A group of cells that are similar in structure and/or work together to achieve a particular function forms a tissue.

In unicellular organisms, a single cell performs all basic functions, while in multicellular organisms, most cells are specialised to carry out specific functions.

Multicellular organisms show division of labour, where cells specialising in one function are grouped together in the body to carry out a particular function efficiently.

<p>Muscle cells contract and relax to cause movement, nerve cells carry messages, blood flows to transport oxygen, food, hormones, and waste material.</p> Signup and view all the answers

<p>Vascular tissues conduct food and water from one part of the plant to other parts.</p> Signup and view all the answers

<p>Plants have a large quantity of supportive tissue with dead cells, while animals contain mostly living tissues.</p> Signup and view all the answers

<p>Plants have limited growth to certain regions due to the presence of dividing meristematic tissue, while animals have more uniform cell growth without such demarcation.</p> Signup and view all the answers

<p>Meristematic tissues in plants are classified as apical, lateral, and intercalary, depending on their location.</p> Signup and view all the answers

<p>The tips stop growing in jar 2 after they are cut because the meristematic tissue, responsible for growth, is located only at certain specific regions.</p> Signup and view all the answers

<p>The structural organisation of organs and organ systems is far more specialised and localised in complex animals than even in very complex plants.</p> Signup and view all the answers