Tag: different modes of nutrition in plants

Questions Related to different modes of nutrition in plants

Pitcher plant Dischidia differs from Sarracenia and Nepenthes in.

botany nutrition in plants nutrition and its types types of nutrition in plants different modes of nutrition in plants

  1. Sessile pitcher

  2. Absence of lid

  3. Absence of insect trapping

  4. Both B and C

Show answer
Correct Option: D
Explanation:

Dischidia is a sessile pitcher plant similar to nepenthes & sarracenia. It differs from nepenthes and sarracenia because it's pitcher is not having lids and the absence of insect trapping as it is a myrmecophilic plant and an epiphyte.

So, the correct answer is 'Both B and C'. 

A partial root parasite is

botany nutrition in plants nutrition and its types types of nutrition in plants different modes of nutrition in plants

  1. Balanophora

  2. Rafflesia

  3. Santalum

  4. Dipterocarpus

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Correct Option: C
Explanation:
Santalum album is a partial root parasite because it photosynthesizes its own food, but taps the roots of other species for water and inorganic nutrients. So it depends only partially on the host.
So, the correct option is 'Santalum'.

From which part of the alimentary canal does chemical digestion begins?

biology through the alimentary canal nutrition and its types types of nutrition in plants different modes of nutrition in plants digestive system - organs process of digestion coordination in the process of digestion

  1. Mouth

  2. Esophagus

  3. Stomach

  4. Gall bladder

  5. Small intestine

Show answer
Correct Option: A
Explanation:

Chemical digestion involves enzymes. In the mouth, chemical digestion is initiated when the food comes in contact with saliva, which is secreted by salivary glands. It contains salivary amylase which begins the digestive process by breaking down starch and converting it into maltose. Chemical digestion then further continues in stomach and then finally in the small intestine.

So, option A is the correct answer.

The chemical digestion of food starts in the

biology through the alimentary canal nutrition and its types types of nutrition in plants different modes of nutrition in plants digestive system - organs process of digestion coordination in the process of digestion

  1. Mouth

  2. Stomach

  3. Esophagus

  4. Small intestine

  5. Large intestine

Show answer
Correct Option: A
Explanation:

Chemical digestion food starts in the mouth as saliva is secrets from salivary gland which consists salivary amylase enzyme which acts on starch and converts it into the simpler form the churned food particles with saliva is called as the bolus then transferred to the stomach through the esophagus.

Carnivorous animals use these teeth to tear flesh.

biology through the alimentary canal nutrition and its types types of nutrition in plants different modes of nutrition in plants digestive system - organs process of digestion coordination in the process of digestion

  1. Incisors

  2. Canines

  3. Premolars

  4. Molars

Show answer
Correct Option: B
Explanation:

Carnivorous animals are meat eating animals. They use canines which are long, pointed teeth near the front of their jaw for tearing of flesh. Other teeth along the side of their jaw, molars and premolars, have uneven edges and are used for shearing the food in smaller pieces.

So, option B is the correct answer.

Pick out the odd one: among the parts of the alimentary canal are

biology through the alimentary canal nutrition and its types types of nutrition in plants different modes of nutrition in plants digestive system - organs process of digestion coordination in the process of digestion

  1. Pharynx

  2. Mouth

  3. Buccal cavity

  4. Pancreas

Show answer
Correct Option: D
Explanation:

Pancreas helps in digestion by secreting pancreatic juice in small intestine. However pancreas is a gland and is not a part of alimentary canal. Alimentary canal is a muscular tube which extends from mouth to anus and includes the mouth, pharynx, oesophagus, stomach and the intestines.

So, option D is the correct answer.