[Biology] Anatomy and functions of various systems in animals (cockroach)

INTRODUCTION

Animals are a highly developed and complex group of organisms. They are heterotrophic (depend on external sources for food intake) in nature and possess the ability to move about in their surroundings. All these highly complex tasks are performed by sophisticated organ systems within the animal’s body.

ORGAN SYSTEM

An organ system is defined as a group of organs working in synergy to perform a……..

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[Biology] Leaf

Definition and general characteristics:

  • The leaf can be defined as the prominent peripheral part of the vascular plants borne on the stem mainly specialized for photosynthesis.
  • Although the stem of young and some different plants can carry out photosynthesis but the leaves account for the major surface area for plants’ overall photosynthesis, transpiration and gaseous exchange.
  • The flat and thin structure of the leaves containing…..

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[Biology] Root

Definition of Root

  • Roots are located underground in all the vascular plants and are mostly non-green in colour.
  • The roots are positively hydrotropic and geotropic, whereas negatively phototropic.
  • Roots plays important role in obtaining the necessary minerals, water and nutrients from the soil.
  • Roots are used by the plants to……

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[Biology] Plants (general structure)

INTRODUCTION

Plants play a pivotal role in making the surrounding environment suitable for living. Plants provide us with oxygen, fruits, fibre and wood. Plants, likes humans, are highly variable and each terrain has its own variety of plants. However, a flowering plant usually consists of four different parts;

  • Root
  • Stem
  • Leaves
  • Flower

ROOTS

A root is the underground part of…….

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[Biology] Introduction to Tissue

TISSUE

Tissue is defined as

An aggregation of structurally and functionally identical cells along with their extracellular material, acting in synergy to perform a specific function.

STUDY OF TISSUE

The study of tissues falls under two branches which are as follows;

HISTOLOGY

Histology is the branch of anatomy in which we study the structure and functions of tissues.

HISTOPATHOLOGY

Histopathology is a diagnostic branch of pathology in which we study tissues in light of various diseases.

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