Science- Animals get their energy/ Extra Questions

Extra Questions- Animals get their Energy

Q1: Write down  different structures present  in different organisms for ingestion.

Ans: Paramecium-Cilia

Amoeba-pseudopodia

Butterfly-proboscis

Frog-long, sticky tongue

Hydra-tantacles

Sponges-Filter like feeding

Q2: Write the missing part in following process.

INGESTION--------->  ______________--------->ABSORPTION----------->__________________------------> EGESTION

Q3: State true or false:

a)     Leech is an ectoparasite. (True)

b)    Bacteria are found in plaque. (True)

c)     Mould is a parasite. (False, It is a saprophyte as it feeds on decaying matter.)

Q4: What is the state of food called when it gets mixed with saliva after the action of teeth and tongue and passes down to food pipe?

Ans: Bolus

Q5: Tongue has specialized cells known as taste buds, name them according to their place on tongue.

Ans:  Tip of the tongue- Sweet

Back part- Bitter

Side lower parts-Salty

Side upper-sour

Q6: A cartilaginous flap present on the opening of wind-pipe.

Ans: Epiglottis

Q7: Which digestive juice is secreted in stomach?

Ans: Stomach secretes Hydrochloric acid which break down proteins, carbohydrate in food and destroys harmful bacteria in food.

Q8: Pancreatic juice help in digestion of which nutrients?

Ans: Pancreatic juice produces enzymes to complete the chemical digestion of protein and carbohydrates.

Q9: How do liver and pancreas sent their secretions to small intestine?

Ans: through a common bile duct.

Q10: What are Villi?

Ans: Finger like projections in order to increase surface area for absorption in small intestine are villi.

Q11: What is Rumination?

Ans: The process of bringing back previously eaten food in mouth in lumps and chewing it again is called Rumination.

Q12: Food which comes back again and again is called -?

Ans: Cud