The organs of the gastrointestinal tract in the oral cavity are primarily responsible for _____. a. secreting enzymes for protein digestion b. propelling food through the digestive tract c. physical breakdown and moistening of food d. releasing enzymes for nutrient absorption
Added by Diane O.
Your feedback will help us improve your experience
Sudhir Kumar and 66 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
The digestion of food begins in the mouth by the action of the enzyme ______________________ secreted by the _______________ glands. This enzyme begins the breakdown of starch. When you swallow, the bolus of food moves down the ______________________________ by rhythmic muscular contractions called peristalsis. In the stomach, the action of the enzyme _____________________ and hydrochloric acid aid in the breakdown of _____________________. After leaving the stomach, the acidic mixture of partially digested food, called chyme, enters the first part of the small intestine, the duodenum. Here digestion is completed by the action of enzymes from the pancreas, and bile, which is produced by the liver. Bile aids in the breakdown of _____________. The pancreas contributes bicarbonate ions to neutralize the acidic chyme, as well as digestive enzymes (proteases, amylase, and lipase). In the small intestine, numerous tiny projections called ____________ are responsible for absorption of nutrients. The primary function of the large intestine is to reabsorb __________________.
Sudhir K.
_________Gastric juices, produced in the gastric gland and containing hydrochloric acid and enzymes, digest food into chyme. _________ Solid waste is temporarily stored in the rectum before it is passed through the anal canal. __________The tongue rises to the roof of the mouth, directing the bolus out of the oral cavity. __________ Food is consumed and taken into the oral cavity. ___________ Pancreatic juice enters the duodenum through the pancreatic ducts to aid digestion in the small intestine. _________The bolus passes from the oral cavity to the pharynx and into the esophagus. __________Chyme travels through the small intestine, where nutrients are absorbed into the bloodstream. __________Food is broken down into a small mass called the bolus by being chewed and mixed with saliva that is secreted by the salivary glands. ________Chyme travels through the large intestine, where water and specific vitamins are absorbed and the remaining waste materials pass to the rectum. _________Peristaltic waves move the bolus down the esophagus into the stomach.
Krishna G.
Which part of the digestive tract is contributes to the chemical digestion of carbohydrates, proteins, nucleic acids, and fats? Colon Small intestine Stomach Oral cavity, pharynx, esophagus
Adi S.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD