Difference Between Holozoic and Saprozoic Nutrition

Thekey differencebetween holozoic and saprozoic nutrition is thatHolozoic营养是通过ingestionof liquid or solid organic foods,digestion, absorption, assimilation and egestion whereas saprozoic nutrition is the mode of nutrition which takes place via absorption of simple organic materials and dissolved salts present in the surrounding medium.

营养是所有生物体生长，代谢和修复的必要条件。这取决于碳的来源和能源。一些生物可以生产自己的食物。他们是自养。但是，许多生物无法生产自己的食物。因此，它们取决于自养生产生的食物。我们称这些生物为异营养生物。基于碳和能源的不同来源，可以看到几种营养模式。Holozoic和Saprozoic营养是两种类型。

内容

1.Overview and Key Difference
2.What is Holozoic Nutrition
3.什么是Saprozoic营养
4.Similarities Between Holozoic and Saprozoic Nutrition
5.Side by Side Comparison – Holozoic vs Saprozoic Nutrition in Tabular Form
6.概括

What is Holozoic Nutrition?

全生营养是一种营养方式，其中固体和复杂的食物直接被带入体内。显示全生营养的生物包含一个完整的消化系统。因此，他们可以使用主要生产商生产的食物。此外，在这种营养方式中，生物体使用有机碳的形式获得能量。全生营养是营养的一种方式，其次是人类，动物和昆虫植物。

Holozoic nutrition occurs via five different processes: ingestion, digestion, absorption, assimilation, and egestion. Ingestion is the process of taking food into the body in the form of solid food by higher-level organisms. Once the food is ingested, they undergo digestion. Digestion is the process of transforming complex food into simple food. It takes place in two ways: mechanical digestion and chemical digestion. Different enzymes participate in the chemical digestion process. During the digestion process, carbohydrates are broken down into glucose and lipids are broken down into fatty acids and glycerol. Moreover, proteins are broken down into amino acids. Mechanical digestion takes place in the buccal cavity and the stomach.

Difference Between Holozoic and Saprozoic Nutrition

Figure 01: Amoeba uses Holozoic Nutrition

In the small intestine, absorption of nutrients such as glucose, amino acids, fatty acids, and glycerol takes place via the microvilli and the lacteals. Water absorption occurs mainly in the large intestines. Various organs, tissues, and cells absorb nutrients during the assimilation process. Finally, through egestion, the body removes undigested foods via the anus to the exterior.

什么是Saprozoic营养?

Saprozoic营养被定义为一种营养，该营养通过吸收简单的有机材料和周围介质中存在的溶解盐来满足其营养需求。使用这种营养模式的生物被称为咸味喂食器。主要是原生动物具有这种营养方式。因此，某些原生动物具有吸收通过特殊类型的身体表面中存在于溶液中的复杂有机化合物的能力渗透过程。独特的渗透过程称为渗透粒。

依赖于营养剂模式的生物的基本营养需求是铵盐，氨基酸和蛋白酶。典型的咸味原生动物包括寄生虫单核藻。

What are the Similarities Between Holozoic and Saprozoic Nutrition?

Holozoic和Saprozoic营养是生物体中看到的两种营养模式。
Both are types of heterotrophic nutrition.
Protozoans show both holozoic and saprozoic nutrition.

What is the Difference Between Holozoic and Saprozoic Nutrition?

Holozoic nutrition is the mode of nutrition which takes place via ingestion of liquid or solid organic foods, digestion, absorption, assimilation, and egestion. Saprozoic nutrition is a type of nutrition where the animal fulfills its nutrient requirements through the absorption of simple organic materials and dissolved salts present in the surrounding medium. So, this is the key difference between holozoic and saprozoic nutrition. Besides, holozoic nutrition is shown by man and other higher forms of animals while most of the protozoans show a saprozoic mode of nutrition.

The below infographic summarizes the difference between holozoic and saprozoic nutrition.

摘要 - Hologoic vs Saprozoic营养

Holozoic and saprozoic are two types of heterotrophic nutritional modes. In holozoic nutrition, organisms ingest solid or liquid organic materials and digest them, absorb nutrients, assimilate nutrients and remove undigested foods via egestion. In saprozoic nutrition, some unicellular protozoans absorb liquid organic substances from their surrounding medium and use them as foods. So, this is the key difference between holozoic and saprozoic nutrition.

Reference:

1. “Definitions for Holozoic Nutritionholo·Zoic Nu·Tri·Tion.” What Does Holozoic Nutrition Mean?Available here。
2. “Nutrition and Protozoa (With Diagram).” Biology Discussion, 2 May 2016,Available here。