Across
- 3. It is a structurally complex and compartmentalized unit of life characterized by the presence of a distinct, membrane-bound nucleus housing genetic material, multiple specialized membrane-bound organelles, and intricate cellular structure.
- 8. are slender, hair-like microstructures that protrude from the surface of certain cells, exhibiting dynamic, coordinated, rhythmic beating patterns. Their primary function resides in mediating cellular motility and the facilitation of extracellular fluid movement.
- 9. Discovered the fluid content of the cell. His most notable contribution is the discovery and description of cellular structures known as "sarcode" or "protoplasm," which played a crucial role in advancing the understanding of cells and paved the way for future research in cell biology.
- 14. He published a book titled "Micrographia" in which he described his observations using a microscope. He observed small, box-like structures, which he called "cells" because they reminded him of the small rooms (cellulae in Latin) monks lived in.
- 17. It is commonly known as red blood cells (RBCs), serve a vital function in the circulatory system. Their primary role is to transport oxygen from the lungs to various tissues and organs in the body and to facilitate the return of carbon dioxide, a waste product of cellular metabolism, from the tissues back to the lungs for exhalation.
- 18. Found on certain cells, serving as complex molecular motors to generate propulsive forces that enable cell movement and facilitate directional locomotion in a biomechanically intricate manner.
- 19. In 1831, while examining plant cells under a microscope, Robert Brown observed a structure within the cell that appeared as a distinct, rounded body. He named this structure the "nucleus," which comes from the Latin word for "kernel" or "seed."
- 20. It serve as the biological linchpin for both tissue homeostasis and regeneration through their unique capacity for self-renewal and pluripotency, wherein they can give rise to a diverse array of specialized cell types, thereby contributing to tissue repair, growth, and maintenance while holding the potential to alleviate degenerative and pathological conditions.
Down
- 1. Their functions transcend mere structural components, acting as veritable gatekeepers, signal transducers, and transport facilitators, navigating the delicate balance between cellular stability and dynamic responsiveness.
- 2. It has two ends: cis face situated near the endoplasmic reticulum and trans face situated near the cell membrane.
- 4. Made up of two layers of lipid molecules in which protein molecules are floating.
- 5. He proposed that the bodies of animals are made up of individual cells, similar to plants, and that cells are the basic structural and functional units of all living organisms.
- 6. It is commonly known as white blood cells, play several critical functions in the immune system and overall health. Their primary role is to defend the body against infections, pathogens, and foreign substances. Here are some of the key functions of leukocytes:
- 7. Made up of cellulose, hemicellulose and pectin
- 10. His work is particularly associated with the concept of "omnis cellula e cellula," which means "every cell originates from another cell."
- 11. It exerts its pivotal role by modulating the biophysical properties, specifically the fluidity and rigidity, of the lipid bilayer.
- 12. Indispensable for hemostasis, the process of preventing and controlling bleeding. They adhere to damaged blood vessel walls, aggregate to form a plug, and release clotting factors, ultimately leading to clot formation.
- 13. They are involved in the movement of molecules such as proteins, lipids, and other cellular components within the cell and between different cellular compartments.
- 15. It is a unicellular microorganism characterized by its minimalistic cellular structure, devoid of a well-defined membrane-bound nucleus and complex organelles, wherein genetic material exists as a singular. These cells are typified by their relative simplicity, lack of membrane-bound organelles, and reliance on binary fission for reproduction
- 16. serve as amphipathic molecules in biological membranes, orchestrating the creation of lipid bilayers where hydrophilic phosphate heads face the aqueous environment, while hydrophobic fatty acid tails remain sequestered inside.