MCQ Subject: General Science

Which of the following metals will displace hydrogen from dilute hydrochloric acid?

Which pigment is primarily responsible for absorbing carbon dioxide during photosynthesis in plants?

In the human respiratory system, where does the exchange of oxygen and carbon dioxide primarily occur?

Which of the following is identified as the longest bone in the human skeletal system?

The adult human skeletal system is composed of approximately how many bones?

Which enzyme plays the primary role in breaking down carbohydrates in the human digestive system?

What are the two primary end products of aerobic respiration in humans?

Which part of the human eye regulates the amount of light entering the eye by adjusting its size?

Which pigment, often overshadowed by chlorophyll, plays a crucial role in the initial steps of photosynthesis by capturing and transferring energy?

Which organ is primarily responsible for pumping blood throughout the human body?