Cotyledon

Germination is the transition from mature embryos to an actual plant containing both a root and a shoot. This involves having a visible root and shoot as well as cotyledon elongation. (Attree 1990) Once the seed germinates, both a root and a shoot forms, and the seed capsule is pushed up, out of the dirt by the stem before it falls off. The different treatments used in this study affected the overall germination of the Picea mariana seeds. The seeds which were only treated with distilled water…

part of the mustard (Brassicaceae) family and is quite common and widespread, found in habitats such as rocky ground, sand dunes and disturbed habitats (e.g. weed gardens and waste ground). It has a 6 week generation time. On the first week two cotyledons emerge from the seed and more leaves develop up until the fourth to fifth week, when the rosette growth completes and flower production begins. This plant doesn’t hold much agricultural significance but it is mainly used as a model organism for…

Introduction Fetal programming is an idea that specific periods of development can be effected by maternal stimulus that has long term effects. “Theory of Fetal Programming” originated from Dr. David Baker and his colleagues at the University of Southampton stating that early growth and development in utero has a strong impact on the offspring later in life. The main maternal stimulus, nutrition is the most important due to direct and indirect effects on the different stages of development. It…

Sugarcane (Saccharumofficinarum L.) is one of the most important mono cotyledon crop crops widely cultivated in tropical and subtropical regions which belongs to the family of Poaceae. It is an octaploid crop with a chromosome number of 2n = 8x = 80. Being highly cross-pollinated in nature, this crop requires specific, hot and humid climate for flowering (Gill et al., 2006). The sugar from the sugarcane accounts for about 70% of the worlds’ total sugar production (Comstock and Miller 2004) the…

The placenta provides for exchange of nutrients and waste products between the fetus and mother (Lewis, S.,2011). .The placenta is a temporary vital organ. About five days after fertilization the placenta will attach itself to the woman’s uterus latching to the umbilical cord; it is fully functioning by 13 weeks of pregnancy. The umbilical cord contains two arteries and a vein. The woman and the baby cells make up the placenta. The placenta handles producing pregnancy essential hormones such…

fertilized the egg, forming a zygote and eventually an embryo, which other sperm combines with polar nuclei, giving rise to food-storage endosperm. The seed coat enclosed the embryo along with a food supply stocked in either the endosperm or the cotyledons. Seed dormancy ensures that seed germinate only when conditions for seedling survival are optimal. The breaking dormancy often requires environmental cues, such as temperature or lighting…

Michelangelo has been dubbed one of the most brilliant painters in all of history. With his work ranging from paintings to statues, including the statue of David, the last judgement painting, and his amazing works in the Sistine Chapel. His most notable painting is in that very chapel, the Creation of Adam. Many scholars have put Michelangelo’s painting at the same level of importance and value as the Mona Lisa by Leonardo da Vinci. With the rare and grand display of significance, it is a highly…

B) as a liquid. C) covalently bound to sugars. D) coupled to ion transport. E) via endocytosis. Answer: B Topic: Concept 35.2 Skill: Synthesis/Evaluation 25) Plants contain meristems whose major function is to A) attract pollinators. B) absorb ions. C) photosynthesize. D) produce more cells. E) produce flowers. Answer: D Topic: Concept 35.3 Skill: Knowledge/Comprehension 26) A cell that is most likely to retain the ability to divide, perform metabolic functions, and…