Tag: microbodies

• In plant cells, peroxisomes are associated with photorespiration.
  
• Peroxisomes (microbody) are small organelle which contains reducing and oxidising enzyme catalase.
  
• It helps in the breakdown of long chain fatty acids through beta-oxidation and converts them into to medium chain fatty acids, which are subsequently broken down to carbon dioxide and water in the mitochondria (photorespiration).
• So, the correct answer is 'Photorespiration'.
  

• A lysosome is a single membrane-bound organelle which contains digestive enzymes that digest excess or worn out organelles, food particles, engulfed viruses or bacteria and macromolecules.
• The peroxisome is a single membrane-bound organelle which contains oxidative enzymes and is responsible for lipid production and oxidation reactions within the cell.
• Whereas, mitochondria is a double membrane-bound organelle and is known as the powerhouse of the cell which is present in all eukaryotic cells.
• So, the correct answer is 'Both peroxisomes and lysosomes'.

• The peroxisome is a single membrane-bound organelle which contains oxidative enzymes and is responsible for lipid production and oxidation reactions within the cell.
  
• Peroxisomes are present in the photosynthetic cells of green plants (palisade cells of C3 plants and bundle sheath cells of C4 plants).
• So, the correct answer is 'Bundle sheath'.

• Spherosomes or oleosomes can be defined as small cellular organelles found in plant cells that are enclosed by a single membrane. 
• It is mainly responsible for the storage and synthesis of lipid. 
• It was discovered by Perner in the year 1953.
• They are obtained from the endoplasmic reticulum and are surrounded by a phospholipid monolayer.
  
• So, the correct answer is 'Perner'.

• Spherosomes or oleosomes can be defined as small cellular organelles found in plant cells that are enclosed by a single membrane. 
  
• It is mainly responsible for the storage and synthesis of lipid. 
  
• The lipid content in spherosomes is 98% and proteins content is only 2 %.
  
• They are obtained from the endoplasmic reticulum and are surrounded by a phospholipid monolayer.
  
• So, the correct answer is 'Synthesis and storage of fat'.

• Microbodies or cytosomes can be defined as cellular organelle found in the plant cells, protozoans and animal cells (liver and kidney cells).
  
• The different types of microbodies present within a cell are peroxisomes, glyoxysomes, glycosomes and hydrogenosomes.
• The main function of microbodies is oxidation of fatty acids, amino acids, purines and alcohol (liver cells) which requires significant amounts of oxygen.
• Mitochondria are double membrane-bound cellular organelles which are known as the powerhouse of the cell.
• It creates energy-rich molecules (ATP) for the cell by utilizing oxygen. 
  
• So, the correct answer is 'Using oxygen'.

• Spherosomes or oleosomes can be defined as small cellular organelles found in plant cells that are enclosed by a single membrane. 
  
• It is mainly responsible for the storage and synthesis of lipid. 
• They arise from the endoplasmic reticulum and are enclosed by a phospholipid monolayer.
  
• So, the correct answer is 'E.R'.

A. Spherosomes or oleosomes can be defined as small cellular organelles found in plant cells that are enclosed by a single membrane. 

• The enzyme catalase occurs in Peroxisome and glyoxysome.
• The enzyme catalase is found all living organisms such as bacteria, plants, and animals.
  
• Its main function is to catalyze the breakdown of hydrogen peroxide into water and oxygen and thus, protects the cell from oxidative damage from reactive oxygen species.
• The peroxisome is a single membrane-bound organelle which contains oxidative enzymes and is responsible for lipid production and oxidation reactions within the cell.
  
• Similarly, glyoxysome is specialized peroxisome which is found in fat storage tissues of germinating seeds.
• So, the correct answer is 'Peroxisome and glyoxysome'.