CLASS: X-SCIENCE-CHAPTER: LIFE PROCESSES-MCQ

CLASS: X-SCIENCE

CHAPTER: LIFE PROCESSES

MCQ

1.  The chlorophyll in photosynthesis is used for

        I.   Absorbing light

      II.   Breaking down water molecule

     III.   No function

     IV.   Reduction of CO₂

2.  Proteins after digestion are converted into

        I.   Carbohydrates

      II.   Small globules

     III.   Amino acids

     IV.   starch

3.  Carbohydrates in the plants are stored in the form of

        I.   Glycogen

      II.   Starch

     III.   Glucose

     IV.   Maltose

4.  Main site of photosynthesis

        I.   Leaf

      II.   Stem

     III.   Chloroplast

     IV.   Guard cells

5.  The small pores present of leaf’s surface are called

        I.   Stomata

      II.   Chlorophyll

     III.   Guard cells

     IV.   None of these

6.  Photosynthesis is a

        I.   Catabolic process

      II.   Parabolic process

     III.   Amphibolic process

     IV.   Photochemical lprocess

7.  Opening and closing of pores is a function performed by

        I.   Stomata

      II.   Chlorophyll

     III.   Chloroplast

     IV.   Guard cells

8.  Which element is used in the synthesis of proteins?

        I.   Hydrogen

      II.   Oxygen

     III.   Nitrogen

     IV.   Carbon dioxide

9.  Temporary finger like extensions on amoeba are called

        I.   Cell membrane

      II.   Cell wall

     III.   Pseudopodia

     IV.   Cilia

10.  Bile juice is secreted by

        I.   Stomach

      II.   Pancreas

     III.   Small intestine

     IV.   Liver

11.  Which of these juices is secreted by pancreas?

        I.   Trypsin

      II.   Pepsin

     III.   Bile juice

     IV.   Both I and II

12.  Lipase acts on

        I.   Amino acids

      II.   Fats

     III.   Carbohydrates

     IV.   All of these

13.  Respiratory pigment in human body is

        I.   Chlorophyll

      II.   Water

     III.   Blood

     IV.   haemoglobin

14.  Blood consist of what fluid medium?

        I.   Lymph

      II.   Platelets

     III.   Plasma

     IV.   All of these

15.  One cell-thick vessels are called

        I.   Arteries

      II.   Veins

     III.   Capillaries

     IV.   Pulmonary artery

ANSWERS

     1.     I

     2.     III

     3.     II

     4.     III

     5.     I

     6.     IV

     7.     IV

     8.     III

     9.     III

     10.  IV

     11.  IV

     12.  II

     13.  IV

     14.  III

     15.  III