The small intestine is specialized for absorption because it a. is the last section of the digestive tract and retains food the longest. b. has saclike extensions along its length that collect food. c. has no outlet so food remains within it for longer periods of time. d. has an extremely large surface area that allows extended exposure to food.

Q: Which of these structures increase the mucosal surface of the smallintestine?a. circular folds d.…

A: The complex food materials ingested by an individual are broken down into simpler substances and are…

Q: At which stage do nutrients enter an organism’s bloodstream?a. Ingestionb. Digestionc. Absorptiond.…

A: Digestion is the process of converting complex substances into simpler ones. It is carried out by…

Q: Which of the following segments of the large intestine are not retroperitoneal: a. ascending colon a…

A: Introduction: The retroperitoneal space is the physical space behind (retro) the peritoneum. It has…

Q: Regarding defecation, which of the following is under voluntary control a. rectum O a O b O C Od Oe…

A: The digestive system plays a vital role in the breakdown and absorption of nutrients from the food…

Q: Which of the following is True?a. The human stomach maintains a very high pH.b. Gastric glands in…

A: Stomach is a sac like organ. It is located between the esophagus and the small intestine. It stores,…

Q: Intestinal microorganisms aid digestion and absorption by a. digesting cellulose. b. producing…

A: Microbiota refer to all the microorganisms including bacteria, viruses, and fungi in the body. The…

Q: The _______ and _______ play important roles in the digestive process by producing chemicals that…

A: The pancreas produces enzymes to assist break down proteins, fats and carbohydrates. The gall…

Q: Which of the following structures is more likely found in the duodenum only a. parietal cells cells…

A: The digestive system is composed of two major components: The major digestive tract primarily works…

Q: In which part of the alimentary canal does most digestion occur?a. stomachb. proximal small…

A: The small intestine is the organ that comes after the stomach in the alimentary canal. It is the…

Q: Chyme arriving in the small intestine would stimulate the beginning of the _________________ phase…

A: There are three digestive phases: The first phase of ingestion is called as cephalic phase.…

Q: Which of these processes occurs throughout most of thealimentary canal?a. ingestionb. propulsionc.…

A: The Alimentary canal is the long tube including the esophagus, stomach, and intestines — that runs…

Q: In humans, most of the absorption of the products of digestiontakes place acrossa. the squamous…

A: Absorption is the process through which products of digestion are absorbed by blood to the entire…

Q: Which of the following nutrients are absorbed in the stomach? a Carbohydrates, lipids, and…

A: The gastrointestinal tract, as well as the digestive organs that support it, make up the human…

Q: Which of these processes occurs in the mouth? a. ingestion b. mechanical digestion c. chemical…

A: Mouth is the first organ of the gastrointestinal (GI) tract.  The GI tract is involved in intake,…

Q: After _____ are absorbed by intestine cells, they go into lymph vessels rather than blood. A.…

A: ANSWER :LIPIDS

Q: After digested nutrients go from the intestines into the blood, where does that nutrient-rich blood…

A: The digestive system is responsible for digestion and absorption of nutrients containing of consumed…

Q: correct function 1)Mouth 2)Esophagus 3)Stomach 4)Pancreas 5)Liver 6)Gallbladder 7)Small intestines…

A: Digestive system consists of alimentary canal which is a long tract starting from mouth and ending…

Q: Digestive enzymes that chemically digest most of our ingested food are secreted by the a. liver. b.…

A: Digestion is the process by which food is broken down both physically and chemically into nutrients,…

Q: Which of the following statements is true?a. Intracellular digestion commonly occurs in…

A: The digestive system is the largest organ system present in the human body. The system is composed…

Q: All of the following are layers of the vertebrate gastrointestinal tract excepta. the peristalsis.b.…

A: Digestion is the process of the breakdown of complex food particles into smaller ones to absorb…

Q: With a gastrovascular cavity... A. Digestion is both extra-oral and intracellular B. Food enters and…

A: The simple digestive system found in many organisms with a central cavity connected to an opening is…

Q: which of the following lacks serosa? O A. Small intestine O B. Stomach OC. Esophagus O D. large…

A: The long, muscular tube like structure that is part of alimentary system through which the food…

Q: The pyloric sphincter connects the: a. Esophagus and stomach b. Stomach and small intestine c.…

A: Pyloric sphincter is a ring of smooth muscle. It opens and closes to control the passage of…

Q: Most digestion and absorption occurs in the ___ because of ____. a. mouth, teeth b. stomach,…

A:

Q: What part(s) of the digestive system are responsible for digesting all three types of foodstuffs…

A: Digestive system is responsible for digestion, absorption and assimilation of nutrients that we…

Q: Which of these structures produces enzymes that digest carbohydrates?a. salivary glandsb. pancreasc.…

A: Carbohydrates can be defined as the organic compounds present in the food and a principally…

Q: What would be the consequence of eliminating the function of parietal cells in the walls of the…

A: Digestive system breaks down large food particles into smaller food particles. It makes the food…

Q: Why is the stomach a poor area for absorption? A. Food entering the stomach is only partially…

A: It is an extended part of the alimentary canal that is present between the esophagus and the small…