Biology, asked by jahanvikatiyar2328, 10 months ago

1- What are nutrients?
2- What is the importance of nutrients?
3- What is autotrophic nutrition?
4. What is heterotrophic nutrition?
5- Why are green plants called producers?
6- What is photosynthesis?
7- What are the raw materials required for photosynthesis?
8- From where do the green plants get carbon dioxide?
9. How do green plants get water?
10- Why are minerals essential in photosynthesis?
11 - How do plants obtain minerals?
12- Give account of the reaction of the photosynthetic reaction?
13- How do the plants obtain carbon dioxide and water?
14- Name the different types of heterotrophic nutrition?
15- What is holozoic nutrition?
16- What are saprotrophs?
17-Name two parasitic plants?
18- How are all plants and animals dependent on green plants?
19- What are the steps involved in holozoic nutrition?
20-Write short notes on absorption?
21- What type of nutrition is shown in amoeba? What does it diet include?
22- How is food digested in amoeba?
23-Describe the digestion of food in the small intestine?
24- What is the function of large intestine in the human digestive system?
25. What is the role played by the liver in addition to the digestion of food?​

Answers

Answered by mishramk898
4

Answer:

hii here is your answer....

2) importance of nutrients ...

. it helps in the growth and development of body structure of living

. it give strength to the body for carrying different functions .

3} the organism that make their own food are called autographs and this process is called autotrophic mode of nutrition .ex ... all green plants .

4} the organisms that are depend on plants for their food , who do not make their own food are called heterotroph and this mode of nutrition is called heterotrophic mode of nutrition . ex .... all human beings and animals .

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6 the process by which green plants make their food in presence of sunlight .

7} carbon dioxide , sunlight etc

Answered by palaktiwary63
8

Answer and Explanation:

1- a substance that provides nourishment essential for the maintenance of life and for growth.

2- Good nutrition is an important part of leading a healthy lifestyle. Combined with physical activity, your diet can help you to reach and maintain a healthy weight, reduce your risk of chronic diseases (like heart disease and cancer), and promote your overall health.

3- Autotrophic nutrition is a process in which the organism produces their food from the simple inorganic materials such as water, carbon dioxide and mineral salts in the presence of sunlight.

4- Heterotrophic nutrition is a type of nutrition in which organisms depend upon other organisms for food to survive.

5- Green plants are called producers because they make their own food out of water and carbon dioxide in the presence of sunlight.

6- the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

7- The raw materials required for photosynthesis are carbon dioxide and water.

8- For photosynthesis green plants take carbon dioxide from the air.

9- Green plants get water through of xylem.

10- Two important mineral ions needed by plants are nitrate - for making amino acids, which are needed to make proteins. Water and carbon dioxide are used to synthesise food during photosynthesis.

11- Plants get water through their roots. From the roots, the minerals travel to the stems and leaves. When plants die, the minerals go back to the soil.

12- During the photosynthesis process, plants capture light energy and use that energy to make glucose. Another product of this reaction is oxygen, which is released as a gas. During respiration, sugar is broken down in a chemical reaction with oxygen.

13- Plants absorb water from the soil through the roots by Osmosis and They get Carbon dioxide from the air through the Stomata present on the leaves which facilitate for gaseous exchange.

14-  holozoic, saprophytic and parasitic.

15- Holozoic nutrition is a type of heterotrophic nutrition that is characterized by the internalization and internal processing of gaseous, liquids or solid food particles. Protozoa, such as amoebas, and most of the free living animals, such as humans, exhibit this type of nutrition.

16- an organism that feeds on or derives nourishment from decaying organic matter.

17- Dodder (Cassytha spp., Cuscuta spp.) and red rattle (Odontites vernus) are generalist parasites.

18- They obtain food from plants and other animals that feed on plants. Thus, it is seen that human beings and animals depend on plants for their food – somewhere directly or indirectly. Green plants are autotrophic and synthesize or make their own food by the process of photosynthesis.

19- This process takes place in following steps:

Ingestion.  

Digestion.

Absorption.

Assimilation.  

Egestion.

20- In biology, absorption pertains particularly to the process of absorbing or assimilating substances into the cell or across the tissues and organs. It is done through diffusion or osmosis. For instance, absorption through the skin is a way through which substances can enter the body.

21- It feeds on both plants and animals. Its diet includes Bacteria, microscopic plants, minute algae, nematodes etc. Since Amoeba is a unicellular organism, it doesn't have any special organ for the nutrition process. It takes place at the body structure using pseudopodia.

22- Digestion in amoeba is intracellular taking place within the cell. The food taken in remains in a food vacuole or gastric vacuole formed by the cell membrane and small part of the cytoplasm. The vacuoles are transported deeper into the cells by cytoplasmic movements. Here they fuse with lysosomes that contain enzymes.

23- The small intestine is where most chemical digestion takes place. Most of the digestive enzymes in the small intestine are secreted by the pancreas and enter the small intestine via the pancreatic duct. The three major classes of nutrients that undergo digestion are proteins, lipids (fats), and carbohydrates.

24- The 4 major functions of the large intestine are recovery of water and electrolytes, formation and storage of faeces and fermentation of some of the indigestible food matter by bacteria. The ileocaecal valve controls the entry of material from the last part of the small intestine called the ileum.

25- The liver has multiple functions, but its main function within the digestive system is to process the nutrients absorbed from the small intestine. Bile from the liver secreted into the small intestine also plays an important role in digesting fat. It breaks down and secretes many drugs.

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