Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Eucaryotic Cell Organelles
A eucaryotic cell has excessive foldings of intrace!:u:;ir cembrane as compared to procaryotic cell. The eucaryotic cell has a number of'organelles such as endoplasmic reticulum, Golgi apparatus, nucleus, mitochondria etc. Organelles have the same relation to a cell, as organs have with an organism. The endoplasmic reticulum is a complex system of membranous sacs, chambers, and tubular canals. It is the site for synthesis of proteins. The Golgi apparatus (or complex) which is a stack of flattened sacs sorts out and processes proteins, besides, it helps in secretion. Membranes also enclose lysosomes, the organelles that contain enzymes necessary for degrading foreign materials thereby help in defence mechanisms. Likewise, membranes surround peroxisomes (microbodies) in which highly reactive hydrogen peroxide is synthesised and degraded. Peroxisomes are also the sites where a variety of biochemical reactions cause conversion of lipids into proteins and v+~ ,e-aversa. In plants, the membranes surround large liquid filled vacuoles. The remaining cytoplasm which is not bound by these organelles is referred to as the cytosol.
The extensive intracellular membrane system of a eucaryotic cell is much larger in size than a procaryotic cell. It provides enough surface area for the exchange of materials and other important cellular reactions which take place on the membrane surface.
It is assumed that membranous organelles have been formed by infolding of plasma membrane through a process called endocytosis (Figure shown below). In endocytosis portions of cell membrane along with the contents of the external medium invaginate and pinch off in the form of cytoplasmic vesicles. Exocytosis is just a reverse process.
Growing roots from different parts of plants Secure a box of sand and place it away from direct sunlight. Wet the sand thoroughly and keep it moist. Plant the following thi
What is Anatomic concavities Anatomic concavities present in the lingual surface of the mandible, the sublingual fossa anteriorly and the submandibular fossa posteriorly. Norm
Q. What is the relationship between the ovulation and menstrual cycle? Ovulation is the releasing of the female gamete from the ovary and Ovulation is a periodical event that o
Explain Gelation Gelation, which occurs when yolk is frozen and thawed, is apparently due to the aggregation of yolk lipoproteins because of the imbalance and shift in water.
Operative requirements for stage i surgery Although Implant placement under general anesthesia must be done in an operating theatre with complete resources, most implant surger
Name two stimulant drugs and state the undesirable side-effects of each. Amphetamine and cocaine are stimulant drugs. The side-effects of amphetamines are high blood pressure;
What is d excretory organ of the agama lizard
Define Proline It is a prominent amino acid found in fish and may contribute to sweetness. The sugars ribose, glucose and glucose-6-phosphate are flavour contributors, as is 5-
Which of the following is true for active hyperemia, a local control mechanism within the circulatory system? A. There will be a decrease in force developed by smooth muscles s
Open and Closed Type of Circulatory Systems There are two categories of circulatory system found in higher metazoans. In one type the original blastocoel carries on to be the
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd