Biology Fsc Part 1 Online Test With Answers

Biology Fsc Part 1 Online Test

Sr. # Questions Answers Choice
1 Mastication is a type of Extra cellular digestion  Intracellular digestion  Mechanicla digestion  Chemical digestion 
2 Muscular tongue plays its role in slection of food through Taste buds Muscles Saliva Ptyalin
3 Which of the followign help to retain food in oral cavity Lips tongue Teeth epiglottis
4 The GI tract is a continnous tube that extends from Mouth to Anus Mouth to Stomach Mouth to Rectum Mouthh to large intestine
5 Which best explais the liver's role in digestion . It produces insulin It stores undigested food It produces bile for fat digestion  It secretes enzymes into the colon
6 What is the function of villi and microvilli in the small intestine. Increase surface area for absorption  Produce enzymes Store bile Neutralize stomach acid
7 Why is segmentation imporant in the small intestine. It absorbs bile It mixes food with digestive juices It breaks down enxymes It pushes food to the rectum
8 Which stomach scretion activates pepesin and kills bacteria. Bile Hydrochloric acid Sodium bicarbonate Mucus
9 Why is lipase not active in the stomach It is destroyed by acid It needs alkaline pH to work It is secreted by the liver It digests only proteins
10 Which change woould most affect protein digestion. Inhibiting pepsin production Blocking bile release Inhibiting salivary gladns Slowing peristalsis
11 Why does the enzyme activity drops in the stomach when pH rises. Acid blocks food entry Enzymes need acdic pH to work Enzymes denature in low pH Saliva dilutes gastric juice
12 What prevents food form entering the trachera during swallowing. Epiglottis Oesophageal sphincter Uvula Tongue
13 Which enzyme in saliva start breaking down starch Amylase Lipase trpsin Pepsin
14 Where does chemical digestion of carbohydrates being. Oesophagus Stomach Mouth Small intestine
15 Target of florigen homone is Flower Floral bod Roots Leaf
16 Duration of low temperature treatemetn varies from 3 days to 4 months 7 days to 1 year 4 days to 3 months 40 days only
17 In vernalization low temperature stimulus is received by  Shoot apex Stem Leaves Root apex
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