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Loss of muscle mass and strength Poor balance, reflexes, and coordination Changes in vision, hearing, and sense of smell Decreased bone density and increased risk of osteoporosis Loss of skin elasticity and thinning of the skin Increase in wrinkles and age spots Hair loss and changes in hair texture Increased risk of dental problems due …

The physical peculiarities of old age – വാർദ്ധക്യത്തിന്‍റെ ശാരീരിക പ്രത്യേകതകൾ Read More »

Mitosis is the process of eukaryotic cell division where the cell nucleus splits into two identical daughter nuclei. It is followed by the division of the cytoplasm and the organelles, resulting in two daughter cells. Mitosis is a continuous process, which is divided into four stages: prophase, prometaphase, metaphase, anaphase, and telophase. During prophase, the …

Characteristic of mitosis – മൈറ്റോസിസിന്‍റെ സവിശേഷതകൾ Read More »

Cell plate formation is a process of cell division in plant cells, which involves the formation of a new cell wall in the middle of two daughter cells. It begins when the cell membrane at the equator of the dividing cell pinches inwards, forming a vesicle known as the preprophase band. The preprophase band then …

Formation of cell plate – കോശഫലകം രൂപീകരണം Read More »

Cytokinesis is the process in which a single cell divides into two daughter cells. It is the final stage of mitosis, the process by which replicated chromosomes are separated into two new cells. During cytokinesis, the cytoplasm of a single cell divides into two new daughter cells, a process that is necessary to maintain the …

Cytokinesis – സൈറ്റോകൈനിസിസ് Read More »

The chromatin reticulum undergoes several changes during the process of transcription. When a gene is turned on, the chromatin fibers become less tightly wound, allowing for the transcription machinery to access the gene. During transcription, the chromatin fibers become even more unwound, allowing the transcription factors and RNA polymerase to interact with the DNA. Once …

Changes that occur in the chromatin reticulum – ക്രോമാറ്റിൻ റെറ്റിക്യുലത്തിൽ സംഭവിക്കുന്ന മാറ്റങ്ങൾ Read More »

Karyokinesis is the process of cellular division that results in the formation of two daughter cells. This process involves the duplication and distribution of genetic material, which is accomplished through mitosis and meiosis. Karyokinesis can refer to either mitosis or meiosis, depending on the context.

Mitosis is a type of cell division that forms two identical daughter cells from one parent cell. During mitosis, the chromosomes in the nucleus are divided into two equal sets, each of which is then moved to one of the two daughter cells. Meiosis is another type of cell division that produces four daughter cells …

Mitosis and meiosis – ക്രമഭംഗം Read More »

Cell growth is the process of increasing the size of a cell, while cell division is the process of dividing a cell into two daughter cells. The two processes are closely related, as cell growth is necessary for a cell to divide. During cell growth, the cell increases in size and volume, and the cell …

The relationship between cell division and cell growth – കോശവിഭജനവും കോശവളർച്ചയും തമ്മിലുള്ള ബന്ധം Read More »

സസ്യങ്ങൾ നിശ്ചലമാണെന്ന് നമുക്ക് തോന്നാറുണ്ടെങ്കിലും, അവയ്ക്ക് ചുറ്റുപാടുകളോട് പ്രതികരിക്കാനും അനുയോജിപ്പിക്കാനും കഴിയും. ഈ പ്രതികരണങ്ങളിൽ പ്രധാനപ്പെട്ട ഒരു വിഭാഗമാണ് ട്രോപ്പിക ചലനങ്ങൾ. ട്രോപ്പിക ചലനം എന്താണ്? ഒരു പ്രത്യേക ഉത്തേജനത്തിന്റെ ദിശയെ അനുസരിച്ച് സസ്യങ്ങളുടെ ഭാഗങ്ങൾ വളരുന്നതോ ചലിക്കുന്നതോ ആയ പ്രതിഭാസമാണ് ട്രോപ്പിക ചലനം. ട്രോപ്പിക ചലനങ്ങളുടെ തരങ്ങൾ ഫോട്ടോട്രോപിസം: പ്രകാശത്തോടുള്ള സസ്യങ്ങളുടെ പ്രതികരണം. തണ്ടുകൾ സാധാരണയായി പ്രകാശത്തെ അഭിമുഖീകരിച്ച് വളരുന്നു (പോസിറ്റീവ് ഫോട്ടോട്രോപിസം). വേരുകൾ സാധാരണയായി പ്രകാശത്തിൽ നിന്ന് അകന്നുപോകുന്നു (നെഗറ്റീവ് ഫോട്ടോട്രോപിസം). ജിയോട്രോപിസം: ഗുരുത്വാകർഷണത്തോടുള്ള …

Nastic movement – ട്രോപ്പിക ചലനങ്ങള്‍ Read More »

Phototropism: This is the movement of a plant in response to light. It can be either positive (towards the light source) or negative (away from the light source). Gravitropism: This is the movement of a plant in response to gravity. Roots grow downward and stems grow upward, in response to the pull of gravity. Thigmotropism: …

Various types of plant movements – വിവിധ തരം സസ്യ ചലനങ്ങൾ Read More »