NCERT Class 11 Biology Model Question Paper

MODEL QUESTION PAPER

MCQ‘S Mark 01

Tick the correct statement

1. The term ‘systematics’ refers to:

  a. Identification and classification of plants and animals

  b. Nomenclature and identification of plants and animals

  c. Diversity of kinds of organisms and their relationship

  d. Different kinds of organisms and their classification

2. Venation is a term used to describe the pattern of arrangment of

  a. Floral organs

  b. Flower in infloresence

  c. Veins and veinlets in a lamina

  d. All of them

3. Interfascicular cambium and cork cambium are formed due to

  a. Cell division

  b. Cell differentiation

  c. Cell dedifferentiation

  d. Redifferentiation

4. Which one of the following is not a connective tissue

  a. Bone

  b. Cartilage

  c. Blood

  d. Muscles

5. Which of the following statements is true for a secretory cell?

  a. Golgi apparatus is absent

  b. Rough Endoplasmic Reticulum (RER) is easily observed in the cell

  c. Only Smooth Endoplasmic Reticulum (SER) is present

 d. Secretory granules are formed in nucleus.

6. Many organic substances are negatively charged e.g., acetic acid, while others are positively charged e.g., ammonium ion. An aminoacid under certain conditions would have both positive and negative charges simultaneously in the same molecule. Such a form of aminoacid is called

  a. Positively charged form

  b. Negatively charged form

  c. Neutral form

  d. Zwitterionic form

7. Mark the correct event during anaphase-I of meiosis

  a. Homologous chromosomes separate

  b . Non-homologous chromosomes separate

  c. Sister chromatids separate

  d. Non-sister chromatids separate

8. The form of sugar transported through phloem is

  a. Glucose

  b. Fructose

  c. Sucrose

  d. Ribose

9. Reactions carried out by N2 fixing microbes include

  a. 2NH3 + 3O2 2NO2  - + 2H+ + 2H2O (i)

  b. 2NO2 - + O2 2NO3 

- (ii) Which of the following statements about these equations is not true

  a. Step (i) is carried out by Nitrosomonas or Nitrococcus

  b. Step (ii) is carried out by Nitrobacter

  c. Both steps (i) and (ii) can be called nitrification

  d. Bacteria carrying out these steps are usually photoautotrophs

10. PEP is primary CO2 acceptor in

  a. C4 plants

  b. C3 plants

  c. C2 plants

  d. Both C3 + C4 plants

11. Glycogen is a homopolymer made of

  a. Glucose units

  b. Galactose units

  c. Ribose units

  d. Aminoacids

12. One of the common symptoms observed in people infected with Dengue fever is

  a. significant decrease in RBC count

  b. significant decrease in WBC count

  c. significant decrease in platelets count

  d. significant increase in platelets count

13. Which one of the following statements is incorrect?

  a. The medullary zone of kidney is divided into a few cortical masses called medullary pyramids projecting into the calyces.

  b. Inside the kidney the cortical region extends in between the medullary pyramids as renal pelvis.

  c. Glomerulus alongwith Bowman’s capsule is called the renal corpuscle.

  d. Renal corpuscle, proximal convoluted tabule (PCT) and distal convoluted tubule (DCT) of the nephron are situated in the cortical region of kidney.

14. Mary is about to face an interview. But during the first five minutes before the interview she experiences sweating, increased rate of heart beat, respiration etc. Which hormone is responsible for her restlessness?

  a. Estrogen and progesterone

  b. Oxytocin and vasopressin

  c. Adrenaline and noradrenaline

  d. Insulin and glucagon

VSA Marks 02

15. Suppose you accidentally find an old preserved permanent slide without a label. In your effort to identify it, you place the slide under microscope and observe the following features :-

  a. Unicellular

  b. Well defined nucleus

  c. Biflagellate–one flagellum lying longitudinally and the other transversely. What would you identify it as? Can you name the kingdom it belongs to?

16. Identify the phylum in which adults exhibit radial symmetry and larva exhibit bilateral symmetry.

17. Identify the sex of a frog in which sound producing vocal sacs are present.

18. What is the feature of a metacentric chromosome?

19. Reaction given below is catalysed by oxidoreductase between two substrates A and A’, complete the reaction. A reduced + A’ oxidised---->

20. A flowering plant is planted in an earthen pot and irrigated. Urea is added to make the plant grow faster, but after some time the plant dies. Give reason.

Please refer to attached file for NCERT Class 11 Biology Model Question Paper