Unit 2 Cell Structure and Function by Hatem Radwan https://padlet.com/hatemradwan/e5s35tdgswphmpka In this Padlet we Recall the differences between prokaryotic and eukaryotic cells en-us 2022-10-05 07:09:31 UTC 2025-10-22 05:40:26 UTC hello@padlet.com https://padlet.net/icons/png/1f52c.png Osha Al Ghaith: Cell wall https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327164167 The cell wall is the outer covering of a cell, present adjacent to the cell membrane, which is also called the plasma membrane.]]> 2022-10-05 08:09:17 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327164167 Osha Al Ghaith: Cell wall https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327165465 The cell wall is the outer covering of a cell, present adjacent to the cell membrane, which is also called the plasma membrane.]]> 2022-10-05 08:10:20 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327165465 ROUGH ER https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327166193 the endoplasmic reticulum(rough) 

what is it?
it is a membraneous organelle that has a large surface area thats covered in ribosomes.
what does it do?
it produces proteins for the rest of the cells to function.]]> 2022-10-05 08:10:55 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327166193 Moza Aldowais (lysosomes) https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327167080 Lysosomes are membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of biological polymers—proteins, nucleic acids, carbohydrates, and lipids.]]> 2022-10-05 08:11:36 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327167080 Azza Alameri : Centrosomes https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327167794 A centrosome is a cellular structure involved in the process of cell division. Before cell division, the centrosome duplicates and then, as division begins, the two centrosomes move to opposite ends of the cell.

]]> 2022-10-05 08:12:10 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327167794 Osha Al Ghaith: Chloroplast https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327170117 A chloroplast is an organelle within the cells of plants and certain algae that is the site of photosynthesis, which is the process by which energy from the Sun is converted into chemical energy for growth. It is also what gives the leaves their green color. Chloroplasts are present in the cells of all green tissues of plants and algae.]]> 2022-10-05 08:13:54 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327170117 nucleolus hamdaalzaffin11 https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327172040 a spherical structure found in the cell's nucleus whose primary function is to produce and assemble the cell's ribosomes. ]]> 2022-10-05 08:15:24 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327172040 Cell membrane (Hind Rashidi) https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327172539 Its a thin membrane/layer that covers every cell. Its like a protection or boundary for the cell from the environment. Surrounded by this cell membran are the cell’s constituents, often large, water-soluble, highly charged molecules such as proteins, nucleic acids, carbohydrates, and substances involved in cellular metabolism.]]> 2022-10-05 08:15:47 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327172539 cell membrane (Hind Rashidi) https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327172829 Its a thin membrane/layer that covers every cell. Its like a protection or boundary for the cell from the environment. Surrounded by this cell membran are the cell’s constituents, often large, water-soluble, highly charged molecules such as proteins, nucleic acids, carbohydrates, and substances involved in cellular metabolism.]]> 2022-10-05 08:16:02 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327172829 Mitochondria https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327175823 Mitochondria are the working organelles that ensure the cell is full of energy. They are also known as the powerhouses of the cell. They are organelles that take in nutrients, break them down, and create energy for the cell. This process is known as cellular respiration. 

Shahad Badri 12CG
]]> 2022-10-05 08:18:22 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327175823 Golgi apparatus: Aysha Al Muhairi https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327176687 Golgi apparatus is membrane-bound cell organelle that helps process and package proteins and lipid molecules, especially proteins destined to be exported from the cell.

]]> 2022-10-05 08:19:04 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327176687 Ribosomes (Hind Rashidi) https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327179617 made of both RNA and protein, and it is the site of protein synthesis in the cell. The ribosome reads the messenger RNA (mRNA) sequence and translates that genetic code into a specified string of amino acids, which grow into long chains that fold to form proteins.]]> 2022-10-05 08:21:30 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327179617 Ribosomes (Hind Rashidi) https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327180463 made of both RNA and protein, and it is the site of protein synthesis in the cell. The ribosome reads the messenger RNA (mRNA) sequence and translates that genetic code into a specified string of amino acids, which grow into long chains that fold to form proteins.]]> 2022-10-05 08:22:09 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327180463 Aysha Alhashimi: Smooth ER Aysha159753 https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327182753 The smooth endoplasmic reticulum is tubular membrane vesicle that is located in the cytoplasm of eukaryotic cells, and unlike the rough ER it lacks ribosomes. It’s function is to mainly synthesize or produce as well as the store lipids which can be later used to produce the cellular membrane. ]]> 2022-10-05 08:24:00 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327182753 Contractile vacuole - Arwa https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327190054 A specialized vacuole of eukaryote cells, especially protozoa, involved in osmoregulation, i.e. it allows the flow of water from the cytoplasm and then discharges this externally by the opening of a permanent narrow neck

]]> 2022-10-05 08:29:43 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327190054 Flagella https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327192149 Flagella are primarily used for cell movement and are found in prokaryotes as well as some eukaryotes. The prokaryotic flagellum spins, creating forward movement by a corkscrew shaped filament. A prokaryote can have one or several flagella, localized to one pole or spread out around the cell. ]]> 2022-10-05 08:31:29 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327192149 Moza Aldowais(DNA) https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327192883 The molecule inside cells that contains the genetic information responsible for the development and function of an organism.]]> 2022-10-05 08:32:03 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327192883 Moza Aldowais(DNA) https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327194238 The molecule inside cells that contains the genetic information responsible for the development and function of an organism.]]> 2022-10-05 08:33:07 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2327194238 vesicle ghayabkaram https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2328749454 A vesicle is a small structure within a cell, consisting of fluid enclosed by a lipid bilayer. Vesicles form naturally during the processes of secretion (exocytosis), uptake (phagocytosis) and transport of materials within the cytoplasm. It is located in the cytoplasm next to the endoplasmic reticulum and near the cell nucleus. There are essentially four types of vesicles used by cells. They are vacuoles, lysosomes, transport vesicles, and secretory vesicles. Vesicles can help transport materials that an organism needs to survive and recycle waste materials. They can also absorb and destroy toxic substances and pathogens to prevent cell damage and infection.]]> 2022-10-06 05:01:58 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2328749454 Fatma Mustafawi https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2328769691 2022-10-06 05:20:32 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2328769691 Nucleus 23malmansoori https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2328772343 2022-10-06 05:23:05 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2328772343 Contractile vacuole (unicellular eukaryotes) - Arwa hatemradwan https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2329132207 A specialized vacuole of eukaryote cells, especially protozoa, involved in osmoregulation, i.e. it allows the flow of water from the cytoplasm and then discharges this externally by the opening of a permanent narrow neck

]]> 2022-10-06 10:35:14 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2329132207 Maryam Almazrooei https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2329133377 The cytoskeleton provides mechanical support to cells for various essential functions, including division and movement, as well as maintaining the shape of cells and ensuring their internal organization. It is impossible to isolate a single component of the cytoskeleton.]]> 2022-10-06 10:36:24 UTC https://padlet.com/hatemradwan/e5s35tdgswphmpka/wish/2329133377