Science Questions

What is the primary role of the middle lamella?

Which organelle is responsible for the synthesis of steroids in the human body?

What is the term for the movement of water across a semi-permeable membrane?

The stack of flattened sacs that make up the Golgi apparatus are called:

Which of these is NOT found in a prokaryotic cell?

What does 'S' stand for in 70S and 80S ribosomes?

Cell theory is not applicable to:

The protein 'tubulin' is the major component of:

Which of the following describes the function of a contractile vacuole in Protozoa?

In a microscope, if the ocular lens is 10x and the objective lens is 40x, the total magnification is:

Which stage of prophase I involves the pairing of homologous chromosomes (synapsis)?

The Endosymbiotic Theory suggests that mitochondria and chloroplasts originated from:

Which molecule acts as a 'fluidity buffer' in the animal cell membrane?

What is the primary role of the 'Signal Recognition Particle' (SRP) in a cell?

Which of the following enzymes is responsible for unwinding the DNA double helix during replication?

In plant cytokinesis, the 'cell plate' is formed by the fusion of vesicles from which organelle?

What is the function of the enzyme 'Catalase' found in peroxisomes?

The 9+2 arrangement of microtubules is a characteristic feature of:

What is the primary function of the 'Nucleolar Organizer Region' (NOR) of a chromosome?

Which component of the cytoskeleton is responsible for 'ameboid movement' and 'cleavage furrow' formation?