bioneethub.in PHOTOSYNTHESIS IN HIGHER PLANTS- INTRODUCTION Photosynthesis in higher plants, Green plants synthesise the food they need, by photosynthesis and all other organisms depend on them for their needs. Photosynthesis ia a physico-chemical process by which plants use light energy to drive the synthesis of organic compounds. The use of energy from sunlight by plants doing … Read more
INTRODUCTION All cells reproduce by dividing into two, with each parental cell giving rise to two daughter cells each time they divide. Growth and reproduction are characteristics of cells, indeed of all living organisms. Such cycles of growth and division allows single cell to form a structure consisting of millions of cells CELL CYCLE It … Read more
INTRODUCTION OF CELL THE UNIT OF LIFE What makes an organisation living? The answer to this is the presence of the basic unit of the life cell in all living organisation. All organisms are composed of cells. WHAT IS A CELL? Cell the unit of life- Cell is the fundamental structure and functional unit of … Read more
INTRODUCTION ANATOMY OF FLOWERING PLANTS:- Anatomy of flowering plants, study of internal structure of plants. Internal structures also show adaptation to diverse environments. ANATOMY OF FLOWERING PLANTS-THE TISSUES Group of cells having a common origin and usually performing a common function is called tissue. TYPES Meristematic tissues and Permanent tissues Meristematic tissues Actively dividing … Read more
INTRODUCTION OF MORPHOLOGY OF FLOWERING PLANT Angiosperms show a large diversity in morphology. Possibly the variation in different parts are due to the adaptions to various habitats. Morphology of flowering plant has root system and shoot system. MORPHOLOGY OF FLOWERING PLANT- THE ROOT Elongation of radicle form primary morphology of flowering plant Primary root bears … Read more
INTRODUCTION Our understanding of the plant kingdom has changed overtime. Fungi and members of the Monera and Protista having cell walls have now been excluded from plantae. Cyanobacteria that are also referred to as blue green algae anyone. In plant kingdom, we describe algae, bryophytes, pteridophytes, gymnosperms and angiosperms. CLASSIFICATION SYSTEMS OF PLANT KINGDOM ARTIFICIAL … Read more
Introduction In biological classification, there have been many attempts to classify living organisms since the dawn of civilisation. Aristotle was the earliest to attempt a more scientific basis for biological classification. He used simple morphological characters to classify plants into trees, shrubs and herbs. He also divided animals into two groups, with RBCs and without RBCs … Read more
ANIMAL MORPHOLOGY- ASSERTION-REASON TYPE 1.A:- Cockroach undergoes paurometabolous development. R:- Development of cockroach is direct. 2. A:- Cockroaches are uricotelic organisms. R:- Malpighian tubules absorb uric acid from body fluid, which is excreted out through hind gut. 3. A:- Body of earthworm is divisible into about 100-120 metameres. R:- Pre-clitellar, clitellar and post-clitellar are three … Read more
COCKROACH ANATOMY TRUE OR FALSE 1.The hindwings are opaque and leathery and are used in flight. 2. The mouth parts consisting of a labium (upper lip), a pair of mandibles, a pair of maxillae and a labrum (lower lip). 3.The anterior end of head bears appendages forming biting and chewing type of mouth parts. 4. … Read more
STRUCTURAL ORGANISATION IN ANIMALS:- ANIMAL TISSUES NEET PREVIOUS YEAR QUESTIONS 1.Which of the following statements wrongly represents the nature of smooth muscle? [NEET 2021] (1) These muscles are present in the wall of blood vessels. (2) These muscles have no striations. (3) They are involuntary muscles. (4) Communication among the cells is performed by intercalated … Read more