NEET Biology Practice Test Anatomy of Flowering Plants

Practice test on ‘Morphology of Flowering Plants’.  Choose the best answer from the four options given. When you've finished answering as many of the questions as you can, scroll down to the bottom of the page and check your answers by clicking ' Score'. Percentage score will be displayed along with right answers.

1.Stomata in grass leaf are...
dumb-bell shaped
kidney shaped
rectangular
barrel shaped

2.Regeneration of damaged growing grass following grazing is largely due to----
lateral meristem
apical meristem
intercalary meristem
secondary meristem

3.Phloem in gymnosperms lacks
both sieve tubes and companion cells
sieve tubes only
companion cells only
albuminous cells and sieve cells

4.The anatomy of springwood shows some peculiar features. Identify the correct set of statements about springwood:

(a) it is also called as the early wood

(b) in spring season cambium produces xylem elements with narrow vessels

(c)it is lighter in colour

(d)The springwood along with autumn wood shows alternate concentric rings forming annual rings

(e)it has lower density. Choose the correct answer from the options given below:

(a), (b), (d) and (e) only
(a), (c), (d) and (e) only
(a), (b)and (d) only
(c), (d)and (e) only

5.In odd trees the greater part of secondary xylem is dark brown and resistant to insect attack due to:

(a) secretion of secondary metabolites and their deposition in the lumen of vessels

(b) deposition of organic compounds like tannins and resins in the central layers of stem

(c)deposition of suberin and aromatic substances in the outer layer of stem

(d)deposition of tannins, gum, resin and aromatic substances in the peripherel layers of stem

(e)Presence of parenchyma cells, functionally active xylem elements and essential oils.

Choose the correct answer from the options given below:
(a)and (b) only
(c)and (d) only
(d)and (e) only
(b)and (b) only

6. Read the following statements about the vascular bundles

(a) in roots, xylem and phloem in a vascular bundle are arranged in an alternate manner along the different radii

(b) Conjoint closed vascular bundles do not possess cambium

(c)In open vascular bundles, cambium is present in between xylem and phloem

(d)The vascular bundles of dicotyledons stem possess endarch protoxylem

(e)In monocotyledonous root, usually there are more than six xylem bundles present. Choose the correct answer from the options given below:

(a), (b) and (d) only
(a), (b), (d) and (e) only
(a), (b), (c) and (d) only
(a), (c), (d) and (e) only

7.Match the following:

a
b
c
d

8. Select the correct Pair
large colourless empty cells in the epidermis of grass leaves- Subsidiary cells
In dicot leaves, vascular bundles are surrounded by large thick walled cells- Conjunctive tissue
Cells of medullary rays that form part of cambial ring- interfascicular cambium
Loose parenchyma cells rupturing the epidermis and forming a lens shaped opeing in bark-spongy parenchyma

9. Give below are two statements: one is labelled as Assertion (A): Late wood has fewer xylary elements with narrow vessels. Reason (R): Cambium is less active in winters.

In the light of the above statements, choose the correct answer from the options given below:

Both A and R are true but R is NOT the correct explanation of A
A is true but R is false
A is false but R is true
Both A and R are true and R is the correct explanation of A

10.Cellulose does not form blue colour with Iodine because---
it is a helical molecule
it is a disaccharide
it breaks down when iodine react with it
it does not contain complex helices and hence cannot hold iodine molecules
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