Cell Organelles and Their Functions

Dr. Suresh introduces the concept of cells, highlighting their role as the basis of life. The video covers the structure of cells, focusing on the differences between prokaryotic and eukaryotic cells. It explains the various subcellular organelles and their functions. The video also discusses techniques for isolating these organelles, particularly through ultracentrifugation, providing examples of how different organelles can be separated based on their molecular weight.

What is the primary distinction between prokaryotic and eukaryotic cells?

• Size of the cell

• Presence of a cell wall

• Presence of a well-defined nucleus

• Ability to perform photosynthesis

Which organelle is responsible for energy production in eukaryotic cells?

• Nucleus

• Mitochondria

• Golgi complex

• Lysosomes

Which organelle is involved in protein synthesis?

• Golgi complex

• Mitochondria

• Lysosomes

• Ribosomes

What is the function of the Golgi complex in eukaryotic cells?

• Photosynthesis

• DNA replication

• Protein modification and packaging

• Energy production

What is absent in prokaryotic cells but present in eukaryotic cells?

• Nucleus

• Cytoplasm

• DNA

• Cell wall

What is the size range of eukaryotic cells?

• 0.1 to 10 micrometers

• 10 to 100 micrometers

• 100 to 1000 micrometers

• 1 to 10 millimeters

Which organelle is absent in prokaryotic cells?

• Cell wall

• Cytoplasm

• Mitochondria

• Ribosomes

Which process is used to separate subcellular organelles based on their molecular weight?

• Distillation

• Chromatography

• Ultracentrifugation

• Filtration

What is the main marker used to identify the nucleus during ultracentrifugation?

• Lipids

• Proteins

• DNA

• RNA

Which enzyme is used as a marker for identifying mitochondria?

• Amylase

• Lactate dehydrogenase

• Alpha ketoglutarate dehydrogenase

• Lipase