General Science-1

1.      Which of the following has the longest small intestine?

a.       Carnivore

b.      Omnivore

c.       Herbivore

d.      Autotroph

2.      The process of obtaining food by Amoeba is known as:

a.       dialysis

b.      cytokinesis

c.       phagocytosis

d.      amoebiasis

3.      The organism having parasitic mode of nutrition is:

a.       Penicillium

b.      Plasmodium

c.       Paramecium

d.      Parrot

4.      One of the following organisms has a saprophytic mode of nutrition. This organism is:

a.       mushroom

b.      malarial parasite

c.       leech

d.      lice

5.      The length of small intestine in a human adult is about

a.      4.5 m

b.      1.5 m

c.       3.5 m

d.      6.5 m

6.      The process of digestion of food in humans begins in:

a.       Stomach

b.      food pipe

c.       mouth

d.      small intestine

7.      The process of digestion in humans is completed in:

a.       oesophagus

b.      small intestine

c.       stomach

d.      large intestine

8.      In human digestive system, bile is secreted by:

a.       pancreas

b.      liver

c.       kidneys

d.      stomach

9.       Two of the following organisms have a holozoic mode of nutrition. These organisms are:

a.       Paramecium and Plasmodium

b.      Plasmodium and Parakeet

c.       Parakeet and Paramecium

d.      Paramecium and Parasite

10.   The autotrophic mode of nutrition requires:

a.       carbon dioxide and water

b.      chlorophyll

c.       sunlight

d.      all of the above

11.   The correct order of steps occurring in nutrition in animals is:

a.       Ingestion ---- > Absorption --- > Digestion --- > Assimilation

b.      Ingestion ---- > Digestion --- > Assimilation ---- > Absorption

c.       Ingestion ---- > Digestion --- > Absorption--- > Assimilation

d.      Ingestion ---- > Assimilation --- > Digestion ---- > Absorption

12.   In human digestive system, the enzymes pepsin and trypsin are secreted respectively by:

a.       pancreas and liver

b.      stomach and salivary glands

c.       pancreas and gall bladder

d.      stomach and pancreas

13.   When carrying out the starch test on a leaf, why is it important to boil the leaf in alcohol?

a.       to dissolve the waxy cuticle

b.      to make the cells more permeable to iodine solution

c.       to remove the chlorophyll

d.      to stop chemical reactions in the cells.

14.   Pancreatic juice contains enzymes which digest:

a.       proteins and carbohydrates only

b.      proteins and fats only

c.       fats and carbohydrates only

d.      proteins, fats and carbohydrates

15.   Which of the following is the correct statement regarding bile?

a.       secreted by bile duct and stored in liver

b.      secreted by gall bladder and stored in liver

c.       secreted by liver and stored in bile duct

d.      secreted by liver and stored in gall bladder

16.   Where are proteins first digested in the alimentary canal?

a.       small intestine

b.      oesophagus

c.       mouth

d.      stomach

17.   The inner lining of stomach is protected by one of the following from the harmful effect of hydrochloric acid. This is:

a.       pepsin

b.      mucus

c.       saliva

d.      bile

18.   Which part of alimentary canal receives bile from the liver?

a.       oesophagus

b.      small intestine

c.       stomach

d.      large intestine

19.   Which of the following component of our food is digested by an enzyme which is present in saliva as well as in pancreatic juice?

a.       proteins

b.      fat

c.       minerals

d.      carbohydrate

20.   If the saliva is lacking in salivary amylase, then which of the following processes taking place in the buccal cavity will be affected?

a.       proteins breaking down into amino acids

b.      starch breaking down into sugars

c.       fats breaking down into fatty acids and glycerol

d.      intestinal layer breaking down leading to ulcers