CELL: THE UNIT OF LIFE

Ribosome Line 1: Ribosomes are the granular structures first observed under the electron microscope as dense particles by George Palade (1953). Explanation: This line introduces ribosomes and their key characteristics: They are granular structures (small, grain-like). They were first observed using an electron microscope, a powerful tool for viewing tiny structures within cells. They appeared […]

Golgi, Lysosome and Vacuole Line 1: Camillo Golgi (1898) first observed densely stained reticular structures near the nucleus. Explanation: This line introduces the historical context by mentioning Camillo Golgi, who first observed these structures in 1898. These structures were later named Golgi bodies or Golgi apparatus after him. Enrichment: Early microscopes did not have the

The Pistil, Megasporangium (Ovule) and Embryo Sac Line 1: As you may recall, a non-living rigid structure called the cell wall forms an outer covering for the plasma membrane of fungi and plants. Explanation: This line reminds you that plant and fungal cells have a cell wall external to the plasma membrane (cell membrane). This

Responsive Swipe Table neetplay.com & neetbuddy.com A. Structure B. Size C. Additional Information PPLO (Type of Mycoplasma) 0.1 µm Mycoplasma 0.3 µm Viruses 0.02-0.2 µm Bacteria could be 3 to 5 µm. Max. Size Range Typical Bacteria 1-2 µm Avg. Bacteria Typical Eukaryotic Cell 10-20 70S Ribosomes 15 nm by 20 nm Associated with plasma

Cell Organelle Classroom Handouts Eukaryotic Kingdoms Eukaryotes include all the protists, plants, animals and fungi. Eukaryotes encompass a vast and diverse group of organisms, familiar kingdoms like plants and animals, along with protists and fungi. A defining characteristic of eukaryotic cells is the presence of a true nucleus, containing the genetic material (DNA), enclosed by

Cell Organelle Classroom Handouts Sentence 1: In higher classes you will learn that this plasmid DNA is used to monitor bacterial transformation with foreign DNA. Nuclear membrane is found in eukaryotes. No organelles, like the ones in eukaryotes, are found in prokaryotic cells except for ribosomes. Prokaryotes have something unique in the form of infoldings

Cell Organelle Classroom Handouts Sentence 1: You have earlier observed cells in an onion peel and/or human cheek cells under the microscope. Let us recollect their structure. Recall that fascinating glimpse into the cellular realm you might have had through a microscope. By revisiting the structure of onion (plant) and cheek (animal) cells, we can

Cell Organelle Classroom Handouts Sentence 1: When you look around, you see both living and non-living things. You must have wondered and asked yourself – ‘what is it that makes an organism living, or what is it that an inanimate thing does not have which a living thing has’ ? This opening question ignites our

Cell Organelle Classroom Handouts Unveiling the Secrets of Life: A Deeper Look at the Paragraph on Living Organisms This paragraph delves into the captivating world of biology, exploring the stunning diversity of life forms and the unifying principle that binds them all. Let’s dissect it line by line, incorporating examples and references for a richer