Spectrum Biology - September 2016

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  1. In the following process of digestion, the enzymes at


location ‘X’ and ‘Y’ are respectively, Proteins


X
⎯→⎯

Protease and Peptones


Y
⎯→⎯ Dipeptides.

(a) chymotrypsin and pepsin (b) pepsin and trypsin


(c) ptyalin and pepsin (d) trypsin and dipeptidase



  1. Match Column I with Column II and Column III.


Column I
(Substrate)

Column II
(Enzyme)

Column III


(Product)



  1. Lactose (a) Lipase (i) Galactose

  2. Monoglycerides (b) Trypsin (ii) Maltose

  3. Starch (c) Lactase (iii) Fatty acid

  4. Peptones (d) Amylase (iv) Dipeptides


Choose the correct option.


(a) 1–a–i, 2–c–ii, 3–b–iii, 4–d–iv
(b) 1–d–i, 2–a–ii, 3–b–iii, 4–c–iv

(c) 1–c–i, 2–a–iii, 3–d–ii, 4–b–iv
(d) 1–c–i, 2–a–ii, 3–d–iii, 4–b–iv


  1. Absorption of vitamin-B 12 in human requires ‘P’


glycoprotein secreted from ‘Q’. The correct choices


for P and Q are


(a) P–extrinsic factor and Q–stomach


(b) P–intrinsic factor and Q–stomach
(c) P–intrinsic factor and Q–small intestine

(d) P–exopolysaccharide and Q–small intestine



  1. Column I contains names of the sphincter muscles of


the alimentary canal and Column II contains their


locations. Match them properly and choose the


correct answer.


Column I Column II


A. Sphincter of ani
internus


  1. Opening of
    hepatopancreatic duct into
    duodenum.


B. Cardiac sphincter 2. Between duodenum and
posterior stomach.

C. Sphincter of Oddi 3. Guarding the terminal part
of alimentary canal.

D. Ileocaecal sphincter 4. Between oesophagus and
anterior stomach.

E. Pyloric sphincter 5. Between small intestine and
bowel.

Codes
ABCD E
(a)3241 5
(b)3415 2
(c) 2514 3
(d)4312 5


  1. In human body, the role of bile salts in digestion is to


(a)act as coenzymes during the digestion of carbohydrates
(b) emulsify fats and facilitate their absorption
(c) aid in the breakup of proteins into amino acids and their
absorption
(d)stimulate the pancreas to release its enzymes


  1. Which one is the correct option for labels A, B and C


in the given diagram?


(a) A–Liver, B–Mucosa, C–Peritoneum


(b) A–Liver, B–Circular muscle layer, C–Serosa
(c) A–Pancreas, B–Mucosa, C–Peritoneum

(d) A–Pancreas, B–Submucosa, C–Serosa



  1. Match the following columns.


Column I Column II


A. Goblet cells 1. Antibacterial agent


B. Lysozyme 2. Mucus


C. Saliva 3. HCl


D. Oxyntic cells 4. Sublingual gland


Codes
ABCD
(a) 3142
(b) 1342
(c) 2314
(d) 2143


  1. Which one of the following statements is true


regarding digestion and absorption of food in


humans?


(a)Oxyntic cells in our stomach secrete the proenzyme
pepsinogen
(b) Fructose and amino acids are absorbed through
intestinal mucosa with the help of carrier ions like Na+
(c) Chylomicrons are small lipoprotein particles that are
transported from intestine into blood capillaries
(d)About 60% of starch is hydrolysed by salivary amylase in
our mouth


  1. The gastric juice contains


(a) trypsin, pepsin, lipase


(b) pepsin, lipase, rennin
(c) pepsin, amylase, trypsin

(d) trypsin, pepsin, rennin


A

C

B

Smart Practice

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