1)Angiosperm Morphology and Plant Systematics - Amrita, SN College
Amrita, a third-year B.Sc. Botany student from SN College, Alathur, and we discussed the Poaceae family (previously known as Gramineae)examples like rice and bamboo. We also discussed gymnosperms (e.g. Cycas, Pinus) which lack fruit, and angiosperms, which are seed-bearing plants with seeds enclosed in fruit. We also discussed about the classification systems of Linnaeus and Bentham & Hooke in botany.
We discussed the effects of drugs like morphine on the human body. We also came across the extraction of morphine and salicylic acid from the opium poppy and willow tree respectively .later , we discussed how ectopic expression leads to decreased resistance against herbivores in Zea mays and the analysis of seed production in hibiscus.
Ideas Raised:
Karyotyping of the ovary , chromosome analysis in Hibiscus
@Seethalakhmi has exam of InOrganic Chemistry. What are Organometallic compound? What gives Blood of Humans red colour and not blood of Fruitfly? What is Heme? Is it Iron only or does it contains other molecule like porphyrin? Which oxidation state of Fe gives red colour to RBC and Rust? Which organometallic compound present in Chlorophyll? @Chithra Mam @Arunan Sir @Kiran CUBE @Seethalakhmi@Sakshi@Sneha
What are somatic cell? Gametic cell? Diploidy? What is the difference between plant cell and animal cell? How can we remove cell wall from Plant cell? What will happen to Plant cell if cell wall is removed? Why do they gains spherical structure? @~Sneha @Seethalakhmi@Chithra Mam
followup discussions:
[8:50 am, 26/11/2024] Himanshu Joshi: Organometallic compounds are chemical compounds containing at least one bond between a
metallic element and a carbon atom belonging to an organic molecule. Even metalloid elements
such as silicon, tin, and boron are known to form organometallic compounds.
Examples of organometallic compounds include:
● Grignard reagent (RMgX)
● Gilman reagent (R2CuLi)
● Dimethylmagnesium (Me2Mg)
● Triethylborane (Et3B)
● Ferrocene
Organometallic compounds play a crucial role in various fields, including catalysis, medicine,
and materials science.
Blood Color and Heme
The red color of human blood is due to the presence of a protein called hemoglobin, which
contains a molecule called heme. Heme is an iron-containing porphyrin complex.
Porphyrin is a molecule consisting of four pyrrole rings connected by methene bridges. Iron (Fe)
is located at the center of the porphyrin ring, coordinating with four nitrogen atoms.
The oxidation state of iron in heme determines the color of blood:
● Ferrous (Fe2+) state: Gives the red color to RBCs
● Ferric (Fe3+) state: Gives the brown color to rust
Chlorophyll
Chlorophyll, the green pigment found in plants, is also an organometallic compound. It contains
a magnesium (Mg) atom at the center of a porphyrin ring. Krayonnz : Social Learning Network
nometallics
[10:12 am, 26/11/2024] Arunan Sir: The same porphyrin rings for Hemoglobin and Chlorophyll except magnesium in one and iron in the other? @Himanshu Joshi @Seethalakhmi@Enas@Theertha
reference shared:
[9:04 pm, 25/11/2024] Chithra : https://images.app.goo.gl/WmyjxWi5VBeZiR6q7
[9:07 pm, 25/11/2024] Chithra : https://www.microbehunter.com/wp/wp-content/uploads/2009/onion1.jpg
[9:31 pm, 25/11/2024] Enas: Hemocyanins are copper-containing respiratory pigments found in many mollusks (some bivalves, many gastropods, and cephalopods) and arthropods (many crustaceans, some arachnids, and the horseshoe crab, Limulus).
[9:32 pm, 25/11/2024] Enas: The blood of earthworm is red due to the presence of hemoglobin dissolved in the plasma. The hemoglobin is not associated with blood cells but is dissolved in the liquid portion of the blood called plasma. Hemoglobin is a red colored oxygen-carrying pigment. https://www.toppr.com › … › Biology
Blood of earthworm is red because its haemoglobin is
[9:32 pm, 25/11/2024] Enas: “Drosophila has a primitive yet effective blood system with three types of haemocytes which function throughout different developmental stages and environmental stimuli. Haemocytes play essential roles in tissue modeling during embryogenesis and morphogenesis, and also in innate immunity. The open circulatory system of Drosophila makes haemocytes ideal signal mediators to cells and tissues in response to events such as infection and wounding.” Drosophila as a model to study the role of blood cells in inflammation, innate immunity and cancer - PMC.
[9:32 pm, 25/11/2024] Enas: “Dr. Lolitika Mandal, Nidhi Sharma Dey and Parvathy Ramesh have discovered the hematopoietic stem cells in Drosophila (fruit flies). — Photo: Special Arrangement
For the first time, researchers have discovered hematopoietic stem cells in Drosophila (fruit flies), thus providing an invertebrate model to study hematopoietic stem cells. Hematopoietic stem cells are the stem cells that give rise to all the other blood cells.” Discovery of special stem cells in fruit flies to help study diseases - The Hindu.
[9:33 pm, 25/11/2024] Enas: Plant cellhttps://www.geeksforgeeks.org/overview-of-plant-cells/
[9:33 pm, 25/11/2024] Enas: https://images.app.goo.gl/WmyjxWi5VBeZiR6q7
[9:33 pm, 25/11/2024] Enas: References shared in Todays ChatShaala
