Tag: food for life

Questions Related to food for life

The animals that consume plants as food are called as

  1. Herbivores.

  2. Saprophytes.

  3. Carnivores.

  4. Omnivores.


Correct Option: A
Explanation:

Herbivores are animals that consume plants as their food. Herbivores are at second level of food chain and are considered primary consumers.

The breakdown of complex components of food into simple ones is called as

  1. Respiration

  2. Digestion

  3. Excretion

  4. Absorption


Correct Option: B
Explanation:
Digestion is the process of conversion of complex food substances into simpler absorbable substances. It is carried out by our digestive system by mechanical and biochemical methods.
So, the correct answer is 'Digestion'.

Animal nutrition does not include which of the following?

  1. Mode of intake

  2. Cooking of food

  3. Nutrient requirement

  4. Utilization in the body


Correct Option: B
Explanation:
Animal nutrition include mode of intake of food, nutrient requirement of the body, and its utilization in the body. Cooking of food is not included in animal nutrition. Food is cooked on flame outside the body of the animal. Human being consume cooked food. 
So, the correct answer is 'Cooking of food'.

The process of expelling of food in amoeba 

  1. Egestion

  2. Digestion

  3. Nutrition

  4. None of the above


Correct Option: A
Explanation:
When a sufficient amount of undigested food gets collected in the food vacuole, it is thrown out of the body by rupturing cell membrane. The process of removal of undigested food from the body is called egestion.
So, the correct option is 'Egestion'.

 The animals that feed by straining suspended matter and food particles from water is known as

  1. Filter feeders

  2. Detritivores

  3. Fungivores

  4. None of the above


Correct Option: A
Explanation:

Suspended food (phytoplankton, zooplankton, algae and other water-borne nutrients and particles) are trapped in the mucus of a gill, and from there are transported to the mouth, where they are eaten, digested and expelled as faeces or pseudofeces.


So, the correct option is 'Filter feeders'.

Which of the following animals are involved in the fluid feeding mode?

  1. Honey bees

  2. Amoeba

  3. Cow

  4. None of the above


Correct Option: A
Explanation:

Fluid-feeding insects, such as butterflies, moths, and flies (20% of all animal species), are faced with the common selection pressure of having to remove and feed on trace amounts of fluids from porous surfaces. 

So, the correct option is 'Honey Bees".

Which of the following phenomena helps in the degradation of complex substances of food into simpler ones?

  1. Digestion

  2. Ingestion

  3. Excretion

  4. Assimilation


Correct Option: A
Explanation:

The process in the alimentary canal by which food is broken up physically, as by the action of the teeth, and chemically, as by the action of enzymes, and converted into a substance suitable for absorption and assimilation into the body.


So, the correct option is 'Digestion'.


Animals that feed discontinuously

  1. exhibit extremely rapid digestion

  2. must have digestive tracts that permit storage

  3. are able to avoid predators by limiting their feeding time

  4. both (b) and (c)


Correct Option: D
Explanation:

  • Continuous feeders: That must "eat" constantly because the food is taken in and then pushed out soon afterwards are called continuous feeders. Most of these animals either are permanently attached to something (such as clams or mussels) or are very slow moving.
  • Discontinuous feeders: Consume larger meals and store the ingested food for later digestion. These animals generally are more active and can avoid predators. Hence, the animals that feed discontinuously must have digestive tracts that permit storage and are able to avoid predators by limiting their feeding time.
So, the correct answer is 'both (b) and (c).

Which functional feeding groups are involved in the process of in-stream physical breakdown of coarse material into fine particulate organic matter?

  1. Collector filterers

  2. Shredders

  3. Grazers

  4. Collector gatherers


Correct Option: B

Birds take nectar by ________

  1. Chewing

  2. Swallowing

  3. Sucking

  4. Biting


Correct Option: C
Explanation:
Birds take nectar by sucking it from the flowers. Birds that suck have slender, curved bills whose tongue are long and slender. When bird pokes its bills into the flower and extends its tongue, the straw-like tip will automatically take up some of the nectar through capillary action.
So, the correct answer is 'Sucking'.