Types of Movement in Human Cells Amoeboid Movement: Definition: Movement exhibited by specialized cells like macrophages and leucocytes, resembling Amoeba's motion. Mechanism: Pseudopodia formation through streaming of protoplasm. Involvement of…
1. Nitrogenous Wastes Accumulation: Animals accumulate substances like ammonia, urea, uric acid, carbon dioxide, water, and ions (Na+, K+, Cl–, phosphate, and sulfate) through metabolic activities or excess ingestion. 2.…
BLOOD: A SPECIAL CONNECTIVE TISSUE Plasma: Definition: Straw-colored, viscous fluid comprising 55% of blood. Composition: Water: 90-92%. Proteins: 6-8% (Fibrinogen, Globulins, Albumins). Fibrinogens: Essential for blood clotting. Globulins: Involved in…
Platelet Activation: Injury stimulates platelets in the blood. Platelets release factors crucial for coagulation. Tissue Factor Release: Injured tissues release specific factors. These factors contribute to the initiation of the…
RESPIRATORY ORGANS IN ANIMALS: Diverse Strategies for Gas Exchange I. Overview of Respiratory Mechanisms: Adaptations Across Animal Groups: Varied Strategies: Different animal groups employ diverse mechanisms for gas exchange based…
GROWTH Definition Growth: Irreversible permanent increase in size of an organ, its parts, or an individual cell. Characteristics Fundamental Aspect: Growth is considered one of the most fundamental and conspicuous…
Introduction Life Processes and Energy: All living organisms require energy for essential life processes. Energy Sources: Energy is obtained through the oxidation of macromolecules known as "food." Photosynthesis and Food…
WHAT WE KNOW ABOUT PHOTOSYNTHESIS Requirements for Photosynthesis: Chlorophyll Green pigment in the leaf. Light Essential for photosynthesis. CO2 (Carbon Dioxide) Necessary for the process. Experiments and Observations: Starch Formation…
Overview of Cell Division Importance of Cell Division Crucial for all living organisms. Involves processes like DNA replication and cell growth. Coordinated Processes Cell Division, DNA Replication, and Cell Growth…
Overview Duration and Complexity Longer and more complex compared to mitotic prophase. Subdivided into five phases: Leptotene, Zygotene, Pachytene, Diplotene, Diakinesis. Leptotene Chromosome Visibility Chromosomes gradually become visible under the…