Term
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Definition
| Digestion which takes place within the cytoplasm of the organism, as in many unicellular protozoans |
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Definition
| a process where saprobionts feed by secreting enzymes through the cell membrane onto the food which is in the digestive system spaces |
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Term
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Definition
| is the process by which the embryo is formed and develops |
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Term
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Definition
| diploid cell formed when the nucleus of a haploid sperm cell fuses with the nucleus of a haploid egg cell |
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Term
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Definition
| embryonic stage in most animals consisting of a single layer of cells surrounding a hollow cavity |
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Term
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Definition
| embryonic stage following the blastula that has an inner and outer cell layer |
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Term
| Single-opening digestive track |
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Definition
| a digestive track in which there is a single opening where food enters and waste exits |
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Term
| Two-opening digestive track |
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Definition
| a digestive track in which there is an opening for food to enter (mouth) and a separate opening where waste exits (anus) |
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Term
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Definition
| layer of cells surrounding a plant's vascular tissue |
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Term
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Definition
| the middle germ layer of a metazoan embryo |
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Term
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Definition
| the outer germ layer in the embryo of a metazoan |
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Term
| GVC (gastrovascular cavity) |
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Definition
| digestive sac that functions in both digestion and the distribution of nutrients to all parts of the body |
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Term
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Definition
| where food enters the body, starts digestion, saliva moistens and breaks food down while teeth mechanically crush food |
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Term
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Definition
| the opening at the lower end of the alimentary canal, through which the solid refuse of digestion is excreted. |
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Term
| Pharynx (earthworm definition) |
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Definition
| the junction in the throat of the alimentary canal and the trachea |
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Term
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Definition
| sac-like food storage organ found in most birds |
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Term
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Definition
| muscular organ, often containing small stones, that grinds seeds and other foods |
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Term
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Definition
| one of the pair of excretory organs in each side of the head region of decapod crustaceans, emptying at the base of the antennae |
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Term
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Definition
| the process of obtaining raw materials from food |
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Term
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Definition
| the act of eating food or drinking; the first stage of food processing |
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Term
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Definition
| mechanical and chemical breakdown of food into molecules small enough for absorption; the second stage of food processing |
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Term
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Definition
| uptake of small nutrient molecules; the third stage of food processing |
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Term
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Definition
| passage of undigested material from the digestive tract; the fourth stage of food processing |
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Term
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Definition
| digestive tube that extends from the mouth to the anus |
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Term
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Definition
| liquid secreted into the mouth that contains mucus and digestive enzymes that start chemical digestion |
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Term
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Definition
| chewed clump of food that leaves the mouth and travels through the alimentary canal |
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Term
| Pharynx (human definition) |
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Definition
| the junction in the throat of the alimentary canal and the trachea |
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Term
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Definition
| muscle-encased tube of the alimentary canal between the pharynx and the stomach |
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Term
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Definition
| series of smooth muscle contractions that push food through the alimentary canal |
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Term
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Definition
| elastic, muscular sac where some chemical and some mechanical digestion take place |
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Term
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Definition
| liquid mixture of food and stomach fluids released from the stomach into the small intestine |
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Term
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Definition
| long, narrow tube where digestion is completed and most absorption occurs |
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Term
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Definition
| largest organ in the body; performs many functions such as producing bile, storing glucose as glycogen, and transforming ammonia to urea |
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Term
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Definition
| organ that stores bile from the liver and releases it into the small intestine |
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Term
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Definition
| gland that makes digestive enzymes and secretes them into the small intestine; makes the hormones insulin and glucagon and secretes them into the blood |
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Term
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Definition
| finger-like projection of the inner surface of the small intestine that functions in absorbing nutrients |
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Term
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Definition
| portion of the alimentary canal from which water is reabsorbed into the body |
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Term
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Definition
| undigested food material and other waste products that exit the body through the anus |
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Term
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Definition
| condition caused by a diet lacking one or more essential nutrients |
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Term
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Definition
| condition caused by a diet deficient in Calories |
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Term
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Definition
| condition of being significantly overweight |
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Term
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Definition
| eating disorder brought about by an extreme pursuit of thinness characterized by self-starvation and excessive weight loss |
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Term
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Definition
| eating disorder characterized by bingeing and purging |
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Term
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Definition
| long, narrow tube where digestion is completed and most absorption occurs |
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Term
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Definition
| portion of the alimentary canal from which water is reabsorbed into the body |
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