Punjab Public Service Commission — Complete MCQ Bank
PPSC examinations recruit candidates for Punjab government departments and commonly test general knowledge, current affairs, English and post-related subjects.
Which gas is released by organisms as a byproduct of cellular respiration?
Which gas is released by plants as a byproduct of photosynthesis?
Which chromosomal disorder is caused by the presence of an extra chromosome 21?
Which type of RNA brings amino acids to the ribosome during protein synthesis?
What happens to enzyme activity when temperature rises significantly above its optimum?
What term describes the specific molecule an enzyme acts upon?
What is the role of enzymes in biological reactions?
Which type of disease is caused by a pathogen and can be transmitted from one person to another?
Which type of disease is caused by a deficiency of essential nutrients in the diet?
What is the process by which organisms adapt to extreme cold by entering a state of dormancy?