NEET TEST SERIES 126 BIOLOGY

1. The cell wall of Chlamydomonas is made up of:

(a) hemicellulose
(b) proteins
(c) glycoproteins
(d) both (b) and (c)

2. The primary function of the cuticle on the surface of leaves is:

(a) exchange of gases
(b) protection
(c) water retention
(d) nutrient absorption

3. In the majority of higher animals and plants, and are mutually exclusive events.

(a) growth; nutrition
(b) nutrition; consciousness
(c) growth; reproduction
(d) reproduction; consciousness

4. Colchicine interferes with the cell because of;

(a) splitting of chromosomes
(b) non-pairing of chromosomes
(c) double replication of chromosomes
(d) non-formation of spindle

5. Match the following column:


(a) (1)-(v); (2)-(iv); (3)-(i); (4)-(ii); (5)-(i)
(b) (1)-(v); (2)-(iv); (3)-(iii); (4)-(ii); (5)-(i)
(c) (1)-(i); (2)-(iii); (3)-(ii); (4)-(iv); (5)-(v)
(d) (1)-(i); (2)-(ii); (3)-(iii); (4)-(iv); (5)-(v)

6. Hydrocolloid carrageen is obtained from:

(a) Phaeophyceae only
(b) Chlorophyceae and Phaeophyceae
(c) Phaeophyceae and Rhodophyceae
(d) Rhodophyceae only

7. The gaseous plant growth regulator is used in plants to:

(a) kill dicotyledonous weeds in the fields.
(b) speed up the malting process.
(c) promote root growth and root hair formation to increase the absorption surface.
(d) help overcome apical dominance

8. Match the following columns:


(a) (1)-(v); (2)-(iv); (3)-(i); (4)-(ii)
(b) (1)-(iii); (2)-(ii); (3)-(i); (4)-(iv)
(c) (1)-(ii); (2)-(i); (3)-(v); (4)-(iii)
(d) (1)-(v); (2)-(iv); (3)-(ii); (4)-(iii)

9. In plant, development refers to the formation of specialised tissues and organs from undifferentiated cells.

(a) germination
(b) morphogenesis
(c) differentiation
(d) senescence

10. Pinus seeds cannot germinate and establish without the presence of:

(a) Cyanobacteria
(b) Mycorrhizae
(c) Bacteria
(d) Light

11. Which feature is NOT related to vacuole in plant cells?

(a) Its cell sap is hypertoni(c)
(b) Its membrane is called tonoplast.
(c) It is not an endomembrane system.
(d) It can occupy upto 90 the percent of the volume of the cell.

12.  Assertion (A): Growth in living organism refers to increase in body mass, increase in size and increase in number of cells.
        Reason (R): Growth in living organism occurs by accumulation of material by external agency.
In the light of the above statements, choose the correct answer from the options given below:

(a) A is true but R is false.
(b) A is false but R is true.
(c) Both A and Rare true and R is the correct explanation of (a)
(d) Both A and Rare true but R is NOT the correct explanation of (a)

13.  Assertion (A): Dispersal is the spreading or dissemination of fruits and seeds from the parent plants to various distances.
        Reason (R): Dispersal is important to prevent overcrowding and decrease competition for nutrients.

(a) A is true but R is false.
(b) A is false but R is true.
(c) Both A and R are true and R is the correct explanation of (A)
(d) Both A and Rare true but R is NOT the correct explanation of (A)

14. Select the incorrect pair:

(a) Zaminkand – Corn
(b) Replum – Mustard
(c) Twisted Aestivation – China rose
(d) Phyllode – Acacia

15.   Assertion (A): Bryophytes are also called as amphibian of the plant kingdom.
        Reason (R): The plant body is haplontic

(a) A is true but R is false.
(b) A is false but R is true.
(c) Both A and R explanation of (A) are true and R is the correct
(d) Both A and R are true but R is not the correct explanation of (A)

16. Nissl’s granules are irregular masses of ribosomes and:

(a) SER
(b) RER
(c) Golgi bodies
(d) Cytoplasm

17. Given below are two statements:
Statement I: Plant growth regulators are organic compounds synthesized in minute quantities.
Statement II: PGRs are simple, small molecules having composition. diverse chemical
In the light of the above statements, choose the correct answer from the given options:

(a) Statement I is true but Statement Il is false.
(b) Statement I is false but Statement Il is true.
(c) Both Statement I and Statement Il are true.
(d) Both Statement I and Statement II are false.

18. Chromosomes are long, thin and slender and chromatin network exposes and threads appear clear in which stage?

(a) Leptotene
(c) Pachytene
(b) Zygotene
(d) Diplotene

19. Characteristics of Mitosis-l stages are given:
(I) Terminalisation of chiasmata occurs.
(II) Fully condensed chromosomes.
(III) Spindle is assemble(d)
(IV) Nucleolus and NM breaks down.
Above characterisitics belong to:

(a) Zygotene
(b) Diakinesis
(c) Diplotene
(d) Metaphase