RIBOSOME
rubabPalade discovered ribosomes in 1953 in animals. Robinson and Brown discovered ribosomes in plant cells. Ribosomes are non-membranous bounded structures. Ribosomes are the sites where the cell synthesizes proteins according…
Dictyosome biology (GOLGI APPARATUS) – Formation and Functions
Dictyosome consists of flattened membranous sacs. They look like a stack of pita bread. A cell may have several interconnected stacks. Each cisterna in a stack consists of a membrane.…
MITOCHONDRIA
Mitochondria are commonly called as power house of the cell. They provide energy transuding system. This system is used to change the food into chemical energy by oxidative phosphorylation. ATP…
PLASTIDS
The membranous bound and pigment containing bodies present in the cell are called plastids. Name plastid was first used by Schimper in 1883. Plastids are present only in plant cells…
GLYCOLYSIS
sanaGlycobsis is the initial step of catabolic chemical reactions. It occurs almost in all the cells. Six-carbon glucose molecule is broken do" ii into too molecules pyruvate durnig glycolysis. Pyruvate…
RESPIRATION
The series of oxidation reduction reac: ons in which substances (glucose) are oxidized to carbon dioxide aad oxygen and energy is released is called respiration. Plants requre a constant supply…
Objective Questions For Photosynthesis
OBJECTIVE Multiple Choice Questions (MCQs) Number of CO2 moleucles used during photosynthesis. (a) 2 (b) 5 (c) 6 (d) 2 The free energy change during photosynthesis is; (a) 680Keal (h)560 …
Subjective And Short Questions For Photosynthesis
MODEL SUBJECTIVE QUESTIONS: Describe process of photosynthesis. Write note on action and absorption spectrum. Describe non-cyclic phosphorylation. Describe cyclic phosphorylation. Describe cavine cycle. Give factors affecting the rate of photosynthsis.…
MRPHOLOGICAL CHARACTERS OF STEM
sidraThe portion of the primary axis of plant which develops from which plumate is called main stem. The axis with leaves is called shoot. Stein has node and internodes. The…
DEFINITIONS AND KEY POINTS FOR Photosynthesis
TERMS DEFINATIONS Photosyntbes; Photosynthesis (photo-light, synthesis-putting together) may be defined as the process in which the .-e. -een plants synthesize carbohydrates from carbon . dioxide and water, using the energy…