Absorption of water in the human body can be found in 1. renal tubule in kidney 2. hepatic cells in liver 3. large intestine 4. pancreatic duct Select the correct answer using the code given below.

Water absorption in the human body occurs primarily in the renal tubules of the kidneys and the large intestine. In the kidneys, approximately 180 liters of filtrate are produced daily, but nearly 99% is reabsorbed in the renal tubules, including the proximal tubule and the loop of Henle, to prevent dehydration [4]. The large intestine (colon) is responsible for absorbing most of the remaining water and salts from undigested food before excretion [2]. In contrast, hepatic cells in the liver are primarily involved in metabolic processes and the production of bile, while the pancreatic duct serves as a conduit for secreting digestive enzymes and bicarbonate-rich fluid into the small intestine [2]. While these organs secrete fluids, they are not primary sites for the reabsorption of water into the circulatory system [2].

Sources

1. [3] https://www.sciencedirect.com/topics/immunology-and-microbiology/small-intestine-absorption
2. [4] Science-Class VII . NCERT(Revised ed 2025) > Chapter 9: Life Processes in Animals > Small Intestine > p. 126
3. [2] Science-Class VII . NCERT(Revised ed 2025) > Chapter 9: Life Processes in Animals > In a Nutshell > p. 134
4. [1] Science , class X (NCERT 2025 ed.) > Chapter 5: Life Processes > Artificial kidney (Hemodialysis) > p. 97