Consider the following statements about the liver: 1. It stores glycogen. 2. It secretes bile. 3. It produces insulin. Which of the above is/are correct? MCQ with Answer and Explanation

Explanation:
Consciousness is the defining property of living organisms, allowing them to sense and respond to stimuli. Non-living objects can increase in mass (e.g., crystal growth), crystallize, or exhibit magnetism, but they lack consciousness. Reproduction and metabolism are also key characteristics, but consciousness is the most fundamental feature. Thus, only living things possess this ability.

Explanation:
All are correct: proteins are polymers of amino acids joined by peptide bonds; hemoglobin is a protein that transports oxygen in blood.

Explanation:
Catalase is an antioxidant enzyme found in peroxisomes that efficiently decomposes hydrogen peroxide (a toxic byproduct) into water and oxygen. Lipase digests fats, amylase starch, pepsin proteins.