Biology

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?

The G0 phase of the cell cycle is a state where the cell:

Glycosylation of proteins (adding sugar chains) occurs mostly in the:

What is the role of 'Plasmodesmata' in plant cells?

Which of the following is an example of 'Active Transport'?

Which nitrogenous base is found in RNA but not in DNA?

The process of 'Programmed Cell Death' is scientifically known as:

What is the diameter of a typical eukaryotic ribosome (80S)?

Which phase is the longest stage of the entire cell cycle?