why should the stomach need such an extreme PH level while the small intestine do not? -Biology

why should the stomach need such an extreme PH level while the small intestine do not? -Biology
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Coming from the acid pH of the stomach which pH level does the chyme find when it enters the duodenum? Why is it necessary to maintain that pH level in the small intestine? What are the organs responsible for that pH level and how is it kept?

Description : Coming from the acid pH of the stomach which pH level does the chyme find when it enters the duodenum? Why is it necessary to maintain that pH level in the small intestine? What are the organs responsible for that pH level and how is it kept?

Last Answer : Entering the duodenum the chyme meets the pancreatic juice under a pH of approximately 8.5. The neutralization of the chyme acidity is necessary to keep adequate pH level for the functioning of the ... chyme acidity; this acidity is also neutralized by the secretion of bile in the duodenal lumen.

(a) Draw a diagram to show the nutrition in Amoeba and label the parts used for this purpose. Mention any other purpose served by this part other than nutrition. (b) Name the glands associated with digestion of starch in human digestive tract and mention their role. (c) How is required pH maintained in the stomach and small intestine? -Biology

Description : (a) Draw a diagram to show the nutrition in Amoeba and label the parts used for this purpose. Mention any other purpose served by this part other than nutrition. (b) Name the glands associated ... mention their role. (c) How is required pH maintained in the stomach and small intestine? -Biology

Last Answer : Answer.(a) Pseudopodia serves the purpose of locomotion apart from nutrition. (b) The salivary gland is associated with digestion of starch in human digestive tract. It secretes saliva which contains ... juice from liver makes the food alkaline in small intestine for the pancreatic enzymes to act.

The digestive system, also known as “systema digestorium”, or gastrointestinal system, is composed of the digestive tube organs plus the digestive adnexal glands. The digestive tube is composed of mouth, pharynx, esophagus, stomach, small intestine (duodenum, jejunum, ileum), large intestine (caecum, colon, rectum) and anus. Digestion System - Image Diversity: human digestive system

Description : The digestive system, also known as systema digestorium , or gastrointestinal system, is composed of the digestive tube organs plus the digestive adnexal glands. The digestive tube is composed of mouth ... (caecum, colon, rectum) and anus. Digestion System - Image Diversity: human digestive system

Last Answer : What are peristaltic movements? What is their role in human digestion?

Which of the digestive organs contains acid? (1) Stomach (2) Small intestine (3) Appendix (4) Colon

Description : Which of the digestive organs contains acid? (1) Stomach (2) Small intestine (3) Appendix (4) Colon

Last Answer : (2) Small intestine Explanation: Gastric acid, gastric juice or stomach acid, is a digestive fluid, formed in the stomach. It is composed of hydrochloric acid (HCl), potassium chloride (KCl) ... (NaCl). Gastric acid plays a key role in digestion of proteins, by activating digestive enzymes.

The site where complete digestion of carbohydrates, proteins and fats takes place is called – (1) Liver (2) Stomach (3) Large Intestine (4) Small Intestine

Description : The site where complete digestion of carbohydrates, proteins and fats takes place is called – (1) Liver (2) Stomach (3) Large Intestine (4) Small Intestine

Last Answer : (4) Small Intestine Explanation: The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives the secretions of the liver and pancreas for this purpose.

Which organ has finger like outgrowths which are called as Villi (Singular Villus)? (1) Large Intestine (2) Bladder (3) Small Intestine (4) Stomach

Description : Which organ has finger like outgrowths which are called as Villi (Singular Villus)? (1) Large Intestine (2) Bladder (3) Small Intestine (4) Stomach

Last Answer : (3) Small Intestine Explanation: The inner walls of the small intestine have thousands of finger-like outgrowths called villi (singular villus). The villi increase the absorption of the digested food.

Roundworm is a human parasite found in the (1) Small intestine (2) Liver (3) Stomach (4) Large intestine

Description : Roundworm is a human parasite found in the (1) Small intestine (2) Liver (3) Stomach (4) Large intestine

Last Answer : (4) Large intestine Explanation: Roundworms, or nematodes, are a group of invertebrates (animals having no backbone) with long, round bodies. Most parasitic roundworm eggs or larvae (immature form) are ... to the mouth. The eggs or larvae also can enter the human body directly through the skin.

What is the name of vessel that delivers the nutrient rich blood from the stomach and small intestine to the liver? (1) left hepatic artery (2) Hepatic vein (3) Right hepatic artery (4) Hepatic portal vein

Description : What is the name of vessel that delivers the nutrient rich blood from the stomach and small intestine to the liver? (1) left hepatic artery (2) Hepatic vein (3) Right hepatic artery (4) Hepatic portal vein

Last Answer : (4) Hepatic portal vein Explanation: The portal vein or hepatic portal vein is a blood vessel that carries blood from the gastrointestinal tract, gallbladder, pancreas and spleen to the liver.

Acid secretion is characteristic of - (1) Buccal cavity (2) Stomach (3) Small intestine (4) Large intestine

Description : Acid secretion is characteristic of - (1) Buccal cavity (2) Stomach (3) Small intestine (4) Large intestine

Last Answer : (2) Stomach Explanation: The stomach is famous for its secretion of hydrochloric acid. It is secreted from parietal cells into the lumen where it establishes an extremely acidic ... acid is important for activation of pepsinogen and inactivation of ingested microorganisms such as bacteria.

In humans , most nutrient molecules are absorbed by the ? A. Small intestine (Answer) B. Stomach C. Liver D. Large intestine E. None of these

Description : In humans , most nutrient molecules are absorbed by the ? A. Small intestine (Answer) B. Stomach C. Liver D. Large intestine E. None of these

Last Answer : A. Small intestine (Answer)

Digestion of food is completed in the -----? A. small intestine (Answer) B. large intestine C. stomach D. Liver

Description : Digestion of food is completed in the -----? A. small intestine (Answer) B. large intestine C. stomach D. Liver

Last Answer : A. small intestine (Answer)

The rate of drug absorption is greatest in; A A. The small intestine B. The large intestine C. The stomach D. Plasma

Description : The rate of drug absorption is greatest in;  A A. The small intestine B. The large intestine C. The stomach D. Plasma

Last Answer : The small intestine

Which one of the following statements is true regarding digestion and absorption of food in humans? (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na+. (b) Chylomicrons are small lipoprotein particles that are transported from intestine into blood capillaries. (c) About 60% of starch is hydrolysed by salivary amylase in our mouth. (d) Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

Description : Which one of the following statements is true regarding digestion and absorption of food in humans? (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions ... amylase in our mouth. (d) Oxyntic cells in our stomach secrete the proenzyme pepsinogen.

Last Answer : (a) Fructose and amino acids are absorbed through intestinal mucosa with the help of carrier ions like Na

Most of the fat digestion occurs in (a) rectum (b) stomach (c) duodenum (d) small intestine.

Description : Most of the fat digestion occurs in (a) rectum (b) stomach (c) duodenum (d) small intestine.

Last Answer : (d) small intestine.

Which of the following is correct pairing of site of action and substrate of rennin? (a) Mouth - Starch (b) Small intestine - Protein (c) Stomach - Casein (d) Stomach - Fat

Description : Which of the following is correct pairing of site of action and substrate of rennin? (a) Mouth - Starch (b) Small intestine - Protein (c) Stomach - Casein (d) Stomach - Fat

Last Answer : (c) Stomach - Casein

Which one of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product? (a) Small intestine : Proteins Pepsin  →  Amino acids (b) Stomach : Fats Lipase  →  Micelles (c) Duodenum : Triglycerides Trypsin  →  Monoglycerides (d) Small intestine : Starch α-Amylase  →  Disaccharide (maltose)

Description : Which one of the following is the correct matching of the site of action on the given substrate, the enzyme acting upon it and the end product? (a) Small intestine : Proteins Pepsin  →  ... Trypsin  →  Monoglycerides (d) Small intestine : Starch α-Amylase  →  Disaccharide (maltose)

Last Answer : (d) Small intestine : Starch α-Amylase  →  Disaccharide

human beings, What is the opening of the stomach into the small Intestine called?

Description : human beings, What is the opening of the stomach into the small Intestine called?

Last Answer : Pylorus

Brunner's glands are present in (a) Stomach (b) Liver (c) Small intestine (d) Large intestine

Description : Brunner's glands are present in (a) Stomach (b) Liver (c) Small intestine (d) Large intestine

Last Answer : (c) Small intestine

Which of the following organs of the body produces insulin? a) liver b) stomach c) pancreas d) small intestine

Description : Which of the following organs of the body produces insulin? a) liver b) stomach c) pancreas d) small intestine

Last Answer : ANSWER: C -- PANCREAS

Which of the digestive organs contains acid? (1) Stomach (2) Small intestine (3) Appendix (4) Colon

Description : Which of the digestive organs contains acid? (1) Stomach (2) Small intestine (3) Appendix (4) Colon

Last Answer : Small intestine

Roundworm is a human parasite found in the (1) Small intestine (2) Liver (3) Stomach (4) Large intestine

Description : Roundworm is a human parasite found in the (1) Small intestine (2) Liver (3) Stomach (4) Large intestine

Last Answer : Large intestine

Acid secretion is characteristic of (1) Buccal cavity (2) Stomach (3) Small intestine (4) Large intestine

Description : Acid secretion is characteristic of (1) Buccal cavity (2) Stomach (3) Small intestine (4) Large intestine

Last Answer : Stomach

What is the pH of the small intestine ?

Description : What is the pH of the small intestine ?

Last Answer : The pH value of small intestine is 8. That is, it is alkaline

What is the pH inside the stomach? Why is there a need to keep that pH level? How is it maintained? Which are the cells that produce that pH?

Description : What is the pH inside the stomach? Why is there a need to keep that pH level? How is it maintained? Which are the cells that produce that pH?

Last Answer : The normal pH of the gastric juice is around So it is an acid pH. It is necessary for the gastric pH to be kept acid for the activation of pepsinogen (a proenzyme secreted by the ... the secretion of hydrochloric acid (HCl) by the parietal cells. Digestion System - Image Diversity: parietal cells

Why are villi present in the intestine and not in the stomach? -Biology

Description : Why are villi present in the intestine and not in the stomach? -Biology

Last Answer : answer:

Every time I lay down I have extreme pain in my stomach and intestinal area? This has been going on for months.

Description : Every time I lay down I have extreme pain in my stomach and intestinal area? This has been going on for months.

Last Answer : Why haven’t you gone to the doctor to get a diagnosis?

Which of the following are capable of denaturing proteins? (a) organic solvents (b) extreme pH (c) heat (d) all of the these

Description : Which of the following are capable of denaturing proteins? (a) organic solvents (b) extreme pH (c) heat (d) all of the these

Last Answer : all of the these

What is the short upper part of the human intestine next to the stomach? -General Knowledge

Description : What is the short upper part of the human intestine next to the stomach? -General Knowledge

Last Answer : The answer is 'Duodenum'

What is the short upper part of the human intestine next to the stomach? -General Knowledge

Description : What is the short upper part of the human intestine next to the stomach? -General Knowledge

Last Answer : answer:

What is the short upper part of the human intestine next to the stomach? -General Knowledge

Description : What is the short upper part of the human intestine next to the stomach? -General Knowledge

Last Answer : answer:

The organ which stores carbohydrates as glycogen in the human body is - (1) Intestine (2) Stomach (3) Pancreas (4) Liver

Description : The organ which stores carbohydrates as glycogen in the human body is - (1) Intestine (2) Stomach (3) Pancreas (4) Liver

Last Answer : (4) Liver Explanation: Glycogen is a multi-branched polysaccharide that serves as a form of energy storage in animals and fungi. In humans, glycogen is made and stored primarily in the cells ... secondary long-term energy storage (with the primary energy stores being fats held in adipose tissue).

Symptoms of Jaundice occur mainly due to disorder and malfunction of - (1) Intestine (2) Liver (3) Stomach (4) Pancreas

Description : Symptoms of Jaundice occur mainly due to disorder and malfunction of - (1) Intestine (2) Liver (3) Stomach (4) Pancreas

Last Answer : (2) Liver Explanation: Liver is affected in Jaundice.

The hepatic portal vein drains blood to liver from (a) stomach (b) kidneys (c) intestine (d) heart.

Description : The hepatic portal vein drains blood to liver from (a) stomach (b) kidneys (c) intestine (d) heart.

Last Answer : (a) stomach

Which of the following statements is not correct? (a) Oxyntic cells are present in the mucosa of stomach and secrete HCl. (b) Acini are present in the pancreas and secrete carboxypeptidase. (c) Brunner’s glands are present in the submucosa of stomach and secrete pepsinogen. (d) Goblet cells are present in the mucosa of intestine and secrete mucus

Description : Which of the following statements is not correct? (a) Oxyntic cells are present in the mucosa of stomach and secrete HCl. (b) Acini are present in the pancreas and secrete carboxypeptidase. (c ... and secrete pepsinogen. (d) Goblet cells are present in the mucosa of intestine and secrete mucus

Last Answer : (c) Brunner’s glands are present in the submucosa of stomach and secrete pepsinogen.

Which one of the following is the true description about an animal concerned? (a) Rat - Left kidney is slightly higher in position than the right one (c) Earthworm - The alimentary canal consists of a sequence of pharynx, oesophagus, stomach, gizzard and intestine (d) Frog - Body divisible into three regions - head, neck and trunk(b) Cockroach - 10 pairs of spiracles (2 pairs on thorax and 8 pairs on abdomen)

Description : Which one of the following is the true description about an animal concerned? (a) Rat - Left kidney is slightly higher in position than the right one (b) Cockroach - 10 pairs of spiracles (2 ... stomach, gizzard and intestine (d) Frog - Body divisible into three regions - head, neck and trunk

Last Answer : (b) Cockroach - 10 pairs of spiracles (2 pairs on thorax and 8 pairs on abdomen)

Which type of tissue correctly matches with its location? Tissue Location (a) Transitional Tip of nose epithelium (b) Cuboidal epithelium Lining of stomach (c) Smooth muscle Wall of intestine (d) Areolar tissue Tendons

Description : Which type of tissue correctly matches with its location? Tissue Location (a) Transitional Tip of nose epithelium (b) Cuboidal epithelium Lining of stomach (c) Smooth muscle Wall of intestine (d) Areolar tissue Tendons

Last Answer : (c) Smooth muscle Wall of intestine

What is the short upper part of the human intestine next to the stomach?

Description : What is the short upper part of the human intestine next to the stomach?

Last Answer : Duodenum

The hepatic portal vein drains blood to liver from : (1) Stomach (2) Kidneys (3) Intestine (4) Heart

Description : The hepatic portal vein drains blood to liver from : (1) Stomach (2) Kidneys (3) Intestine (4) Heart

Last Answer : (3) Intestine

Payers patches are (C.P.M.T.89) (a) Lymph nodules in intestine (b) Mucus cells of gastric gland (c) Gastric pits of stomach (d) None of the above

Description : Payers patches are (C.P.M.T.89) (a) Lymph nodules in intestine (b) Mucus cells of gastric gland (c) Gastric pits of stomach (d) None of the above

Last Answer : (a) Lymph nodules in intestine

Enzyme arginase is found in (a) Mouth cavity (b) Stomach (c) Intestine (d) Liver

Description : Enzyme arginase is found in (a) Mouth cavity (b) Stomach (c) Intestine (d) Liver

Last Answer : (d) Liver

Cardiac glands are found in (a) Pericardium (b) Myocardium (c) Intestine (d) Stomach

Description : Cardiac glands are found in (a) Pericardium (b) Myocardium (c) Intestine (d) Stomach

Last Answer : (d) Stomach

The site of absorption of alcohol in man is (a) Oesophagus (b) Intestine (c) Large intestine (d) Stomach

Description : The site of absorption of alcohol in man is (a) Oesophagus (b) Intestine (c) Large intestine (d) Stomach

Last Answer : (d) Stomach

Fat digestion takes place in (a) Buccal cavity (b) Stomach (c) Intestine (d) All

Description : Fat digestion takes place in (a) Buccal cavity (b) Stomach (c) Intestine (d) All

Last Answer : (c) Intestine

Carbohydrate digestion in man starts from (a) Buccal cavity (b) Oesophagus (c) Stomach (d) Intestine

Description : Carbohydrate digestion in man starts from (a) Buccal cavity (b) Oesophagus (c) Stomach (d) Intestine

Last Answer : (a) Buccal cavity

Protein digestion start from (a) Buccal cavity (b) Stomach (c) Intestine (d) None

Description : Protein digestion start from (a) Buccal cavity (b) Stomach (c) Intestine (d) None

Last Answer : (b) Stomach

Achalasia is related with (a) Stomach (b) Oesophagus (c) Intestine (d) None

Description : Achalasia is related with (a) Stomach (b) Oesophagus (c) Intestine (d) None

Last Answer : (b) Oesophagus

Symptoms of Jaundice occur mainly due to disorder and malfunction of : (1) Intestine (2) Liver (3) Stomach (4) Pancreas

Description : Symptoms of Jaundice occur mainly due to disorder and malfunction of : (1) Intestine (2) Liver (3) Stomach (4) Pancreas

Last Answer : Liver

The organ which stores carbohydrates as glycogen in the human body is (1) Intestine (2) Stomach (3) Pancreas (4) Liver

Description : The organ which stores carbohydrates as glycogen in the human body is (1) Intestine (2) Stomach (3) Pancreas (4) Liver

Last Answer : Liver

Vitamin D absorption is increased in (A) Acid pH of intestine (B) Alkaline pH of intestine (C) Impaired fat absorption (D) Contents of diet

Description : Vitamin D absorption is increased in (A) Acid pH of intestine (B) Alkaline pH of intestine (C) Impaired fat absorption (D) Contents of diet

Last Answer : Answer : A

The saliva pH is approximately 6.8. It is thus a slightly acid pH. Saliva lubricates the food bolus and initiates the enzymatic extracellular digestion of food. It also works as a buffer for the mouth pH and it has an important role of having IgA antibodies (also present in tears, colostrum, mother’s milk and in the mucosae of the intestine and airways) that protect the organism against pathogens.

Description : The saliva pH is approximately 6.8. It is thus a slightly acid pH. Saliva lubricates the food bolus and initiates the enzymatic extracellular digestion of food. It also works as a buffer for the ... 's milk and in the mucosae of the intestine and airways) that protect the organism against pathogens.

Last Answer : What is the salivary digestive enzyme? Which type of food does it digest and into which smaller molecules does it transform the food?