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!
CHLOROPLASTS
Discoidal or oval - Higher plants
Girdle shaped - Ulothrix
Cup shaped - Chlamydomonas
Reticulate - Oedogonium
Spiral - Spirogyra
Stellate - Zygnema
(i) Grana - Made up of Granum lamellae arranged in the form of stacks of coins. Each granum lamella is surrounded by well-defined membrane called Thylakoid (Thylakoid discovered by Menke). Each granum lamella, granular structures called Quantasomes are present. Quantasomes are photosynthetic units. (Quantasomes discovered by Park, Pon and Biggins) Each qunatasome has 230 chlorophyll molecules. Each chlorophyll molecule has two parts - head and tail. Head part is responsible for green colour which is controlled by Mg++. Due to presence of chlorophyll in granum lamellae, the light reaction of photosynthesis takes place in the granum. Lamellae which connects grana are called stroma thylakoids or fret channels (Weier 1966).
(ii) Stroma - The non pigmented enzymatic part of chloroplast is called stroma. It is present in form of matrix. Due to presence of enzymes in stroma, dark reactions of photosynthesis take place here. Stroma contains osmophilic droplets called Plastoglobuli. These store lipids. Stoma of chloroplast contains proteins, phospholipids, nucleic acids, ribosome and fewer amounts of enzymes. Ris and Plaut, Ruthe sager discovered DNA in chloroplast, which is called ctDNA or plastidial DNA. Genetic system of chloroplast is called Plastidome. Due to presence of DNA, RNA and ribosomes chloroplast is called semiautonomous unit like mitochondria having a complete protein synthesis apparatus in stroma.
Explain the Advantages of Shaking Water Baths? The advantages of using shaking water baths are: (a) Uniform and rapid transfer of heat to the culture can be obtained, and
Define protein requirements of Preschoolers? For Preschoolers the protein requirements of children of various age groups are computed by the factorial method as employed by FAO
Give two examples of chemical reactions which are catalysed by enzymes in the course of brewing. In the course of brewing, enzymes in the grain catalyse the conversion of star
explain about vascular system
CHLAMYDIOSIS Amongst various causes of morbidity and mortality chlamydiosis is recognized as one of the important infectious conditions and emerging as threat to the livestock due
what are the characteristics of polychaeta
Explain the Failure to Management of Ledge Apical transportation or perforation: movement of the physiological foramen to a new iatrogenic location. Three types of apical tr
Q. Why doesn't the food enter the trachea instead of going to the esophagus? When food is swallowed the swallow reflex is activated and the larynx closes and elevates to avoid
Wat is the excretory organ of lizard
Explain the Main Benefits of Canned Foods? The main benefits of canned foods are: (a) They are safe and hygienic and have logically good nutritional value; (b) They are e
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