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Animal Nutrition

Food and nutrition are essential for growth, development, and survival. However, the lack of adequate nutrition or food can lead to diseases and death. Dietary concerns: Nutrition is the science and technology of acquiring, preparing, and serving food in good condition, with due regard to the use of the nutrients contained in food. Good nutrition may help to maintain health and to prevent and cure some diseases. Disease prevention and health promotion: The World Health Organization (WHO) and United Nations Children's Fund (UNICEF) consider nutrition as an essential component in the prevention and treatment of both acute and chronic diseases, including obesity, non-communicable diseases (NCDs) and malnutrition. Food quality: Food safety and quality refers to food that is safe to eat and of suitable quality, cleanliness, and appropriate cooking, transporting, and storage conditions. Food safety depends on controlling factors including food hygiene, food processing, food storage, and safety standards. Food security: Food security is a condition related to the supply of food, the demand by food consumers, and the stability of prices and access they have to food. While food security is typically viewed as a long-term goal, there are also concerns about food insecurity in the present day because of food shortages and extreme food prices.

Essential Nutrients

37 Practice Problems
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01:48
Nester's Microbiology: A Human Perspective

All of the following are true of diphtheria except
a) a membrane that forms in the throat can cause suffocation.
b) a toxin is produced that interferes with ribosome function.
c) the causative organism typically invades the bloodstream.
d) immunization with a toxoid prevents the disease.
e) nerve injury with paralysis is common.

Respiratory System Infections
Joanna Quigley
02:16
Nester's Microbiology: A Human Perspective

A shortage of nitrogen (N) would make it most difficult to construct a molecule of
a) cellulose.
b) cholesterol.
c) enzyme.
d) triglyceride.
e) glucose.

The Molecules of Life
Sylvia Puglisi
00:29
Biology Concepts and Applications

Chemical digestion of protein begins in the human________.
a. mouth
b. stomach
c. small intestine
d. large intestine

Digestion and Human Nutrition
Sam Limsuwannarot

Food Processing

66 Practice Problems
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02:11
Microbiology with Diseases by Body System

Which microbial group contributes the greatest number of causative agents to overall digestive tract diseases in the United States?
a. bacteria
b. helminths
c. protozoa
d. viruses

Microbial Diseases of the Digestive System
Eric Goldman
00:25
Biology of Humans: Concepts, Applications, and Issues

________ is a hormone produced by the small intestine that causes the gallbladder to contract and release bile.

The Digestive System and Nutrition
Sam Limsuwannarot
01:36
Biology: Concepts and Investigations

Fructose and glucose are both monosaccharides, but the body metabolizes these sugars differently. For example, glucose stimulates insulin release from the pancreas (see section 28.4 ); fructose does not. Moreover, insulin stimulates leptin release. Finally, fructose is more likely than glucose to be converted to fat. Use this information to propose an explanation for the correlation between the skyrocketing consumption of high fructose corn syrup since 1970 and the rise in obesity during the same period.

Digestion and Nutrition

Mammalian Digestive Organs

71 Practice Problems
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01:52
Nester's Microbiology: A Human Perspective

Which statement about rotaviral gastroenteritis is false?
a) A vaccine is available to prevent the disease.
b) On a worldwide basis, most of the deaths are due to dehydration.
c) Most cases of the disease occur in infants and children.
d) The causative agent infects mainly the stomach.
e) The disease is transmitted by the fecal-oral route.

Digestive System Infections
Joanna Quigley
02:47
Microbiology with Diseases by Body System

The major portion of food digestion occurs in the .
a. mouth
b. stomach
c. small intestine
d. large intestine

Microbial Diseases of the Digestive System
Eric Goldman
00:47
Biology of Humans: Concepts, Applications, and Issues

Why is it possible to swallow while standing on one's hands?
a. Valves in the digestive system keep food from moving backward.
b. Peristalsis pushes food along the digestive tract in the right direction.
c. Bacteria clog the digestive tube and prevent food from moving in the wrong direction.
d. A wave of muscle contraction called emulsification prevents food from moving backward.

The Digestive System and Nutrition
Sam Limsuwannarot

Evolutionary Adaptations of Vertebrate Digestive Systems

22 Practice Problems
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04:26
Biology: Concepts and Investigations

List the criteria used to distinguish: (a) animals from other organisms; (b) vertebrates from invertebrates; (c) protostomes from deuterostomes; (d) ectotherms from endotherms; (e) a tapeworm, a nematode, a slug, an earthworm, a snake, and a caecilian.

Animals
Victoria Karaluz
00:22
Biology Concepts and Applications

Tiny filaments called________ increase the surface area of a brush border cell in the lining of the small intestine.
a. villi
b. cilia
c. microvilli
d. flagella

Digestion and Human Nutrition
Sam Limsuwannarot
02:13
Biology Concepts and Applications

Chordates are most closely related to ________.
a. cnidarians
b. echinoderms
c. mollusks
d. arthropods

Animal Evolution—The Invertebrates
Danielle Ashley

Regulation of Digestion and Energy Storage

23 Practice Problems
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02:21
Biochemistry

(a) The major energy storage compound of animals is fats (except in muscles). Why would this be advantageous?
(b) Why don't plants use fats/oils as their major energy storage compound?

Lipid Metabolism
Caroline Jones
00:32
Biology: Concepts and Investigations

Trace the movement of food in the digestive tract from mouth to anus.

Digestion and Nutrition
Sam Limsuwannarot
01:59
Biology Concepts and Applications

ATP for muscle contraction can be formed by _______.
a. aerobic respiration
b. glycolysis
c. creatine phosphate breakdown
d. all of the above

How Animals Move
Christina Sorrentino

Regulation of Appetite and Cosumption

8 Practice Problems
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01:50
Life: The Science of Biology

Which statement about nutrient absorption by the intestinal mucosal cells is true?
$a .$ Carbohydrates are absorbed as disaccharides.
$b$. Fats are absorbed as fatty acids and monoglycerides.
c. Amino acids move across the plasma membrane only by diffusion.
$d$. Bile transports fats across the plasma membrane.
e. Most nutrients are absorbed in the duodenum.

Nutrition, Digestion, and Absorption
Christina Sorrentino
02:17
Biology Today and Tomorrow with Physiology

Match each structure with its description.
gallbladder
large intestine
liver
small intestine
stomach
pancreas
gastrovascular cavity
a. makes bile, stores glycogen
b. compacts undigested residues
c. secretes enzymes, buffer
d. receives bile and pancreatic
enzymes
e. secretes gastric fluid
f. saclike gut
g. stores, secretes bile

Digestion and Excretion
Joanna Quigley
00:46
Anatomy & Physiology

Consuming which type of food will help the most with weight loss?
a. fats
b. vegetables
C. lean meats
d. fruits

Nutrition and Metabolism
Zachary Papazian

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