Custom Practice Test

Biology-I-Section-A

1.

When xylem and phloem are situated at the same radius of vascular bundle, then they are called _________ type of vascular bundle and are found in _________.

1.	Radial, roots
2.	Radial, stem and leaves
3.	Conjoint, root
4.	Conjoint, stems and leaves

2.

The exchange of gases between the outer atmosphere and internal tissue of stem is through ___________.

1.	Lenticels	2.	Legume
3.	Epidermis	4.	Cambium ring

3.

The Ring arrangement of vascular bundle is characteristic of

1.	Dicot stem and dicot root
2.	Dicot root and monocot root
3.	dicot stem and monocot stem
4.	dicot stem only

4.

In monocot stem, vascular bundles which are situated towards the periphery are ______ in size and _______in number.
1.large, less
2. small, more
3. small, less
4. large, more

5.

Conjoint vascular bundles are most common in

1.	root, stem, and leaves
2.	root and stem
3.	stem and leaves
4.	root and leaves

6. The transverse section of a dicot root is unlikely to show the presence of a conspicuous:
1. cortex
2. pericycle
3. pith
4. endodermis

7.

Complex tissues are
1. heterogenous
2. absent in gametophytes
3. known as vascular tissues
4. All of these

8.

In stems the Protoxylem lies toward ______and Metaxylem lies toward the_________ respectively.

(1) Centre, periphery
(2) Periphery, centre
(3) Below, above
(4) Above, below

9.

Bulliform cells respond to which change?

1.	Turgor pressure
2.	Osmotic pressure
3.	Photosensitive
4.	None of above.

10.

Some tissue are listed below, find a correct set of tissues which are product of redifferentiation in a woody
dicotyledonous plant

(a)	Phellogen
(b)	Phelloderm
(c)	Cork
(d)	Primary xylem
(e)	Secondary phloem
(f)	Interfascicular cambium

1. (a), (b) & (c)
2. (a) & (f)
3. (b), (c), (e) & (f)
4. (b), (c) & (e)

11. Study the given diagram of phloem tissue in angiosperms and select the correct statements:

Statement I:	‘A’ at maturity lose its protoplasm and becomes dead.
Statement II:	‘B’ stores food material and other substances like resins, latex, and mucilage.

1. Statement I is incorrect; Statement II is correct
2. Statement I is correct; Statement II is incorrect
3. Statement I is correct; Statement II is correct
4. Statement I is incorrect; Statement II is incorrect

12.

Bark includes a variety of tissue types like

1.	Phellem, secondary xylem, and secondary phloem
2.	Periderm and all kinds of secondary tissues
3.	Phellogen, secondary phloem, phellem, and secondary cortex
4.	Phelloderm, secondary phloem, and primary xylem

13.

In monocot leaf, mesophyll tissue

1.	Is differentiated into palisade and spongy parenchyma
2.	Is not differentiated into palisade and spongy parenchyma
3.	Possesses some bulliform cells
4.	Is made up of parenchyma cells which lack chloroplasts

14.

The presence of cambium possess the ability to form secondary xylem and phloem tissue and hence are called

1.	Open vascular bundle
2.	Closed vascular bundle
3.	Intermediate vascular bundle
4.	End node vascular bundle

15. Consider the given two statements:

Statement I:	In roots, the protoxylem lies towards the centre (pith) and the metaxylem lies towards the periphery of the organ.
Statement II:	In stems, the protoxylem lies towards periphery and metaxylem lies towards the centre.

1. Statement I is incorrect; Statement II is incorrect
2. Statement I is correct; Statement II is correct
3. Statement I is incorrect; Statement II is correct
4. Statement I is correct; Statement II is incorrect

16.

What are the parts of the periderm?

1.	periblem, phellogen, phelloderm
2.	periblem, phellogen, plerome
3.	phellem, phellogen, phelloderm
4.	cortex, dermatogen, phelloderm

17. Conjoint vascular bundles are commonly seen in:

1.	Stems only	2.	Root and Stems
3.	Stems and Leaves	4.	Root, Stems and Leaves

18.

Match the plants in Column-I with the description of anatomy of vascular bundles in them in Column-II and select the correct option from the codes given:

	Column-I		Column-II
A.	Dicot stem	a.	Collateral, closed and scattered in ground tissue
B.	Monocot stem	b.	Conjoint, collateral endarch and open
C.	Dicot root	c.	Radial, exarch and polyarch [usually more than 6]
D.	Monocot root	d.	Radial, exarch and 2 to 6 in number

Codes:

	A	B	C	D
1.	a	b	c	d
2.	b	a	d	c
3.	a	b	d	c
4.	b	a	c	d

19. The number of correct statements regarding anatomy of dicot stems is:

Statement I:	Hypodermis consists of a few layers of collenchymatous cells.
Statement II:	The cells of the endodermis are rich in protein granules.
Statement III:	Pericycle is in the form of semi-lunar patches of sclerenchyma.
Statement IV:	The ‘ring’ arrangement of vascular bundles is a characteristic of dicot stem.

1. 1
2. 2
3. 3
4. 4

20.

Passage cells are found in

1.	Dicot stem	2.	Monocot root
3.	Monocot stem	4.	All of these

21.

Closed vascular bundles lack:
1. Ground tissue
2. Conjuctive tissue
3. Cambium
4. Pith

22.

Which of the following statements is not true?

1.	The apical meristem includes both promeristem and primary meristem.
2.	The intercalary meristem, when present, gives rise to the primary permanent tissues.
3.	The primary permanent tissues are responsible for the growth in the thickness of the plant body.
4.	The intercalary meristem is the detached portion of the apical meristem.

23. Consider the two statements:

Assertion (A):	Secondary growth takes place in dicot stems but not in monocot stems.
Reason (R):	Hypodermis is collenchymatous in dicot stems while it is sclerenchymatous in monocot stems.

1.	(A) is True but (R) is False
2.	Both (A) and (R) are True but (R) does not explain (A)
3.	(A) is False but (R) is True
4.	Both (A) and (R) are True and (R) correctly explains (A)

24.

In a dicotyledonous stem, the sequence of tissues from the outside to the inside is
(1) phellem – pericycle – endodermis – phloem
(2) phellem – phloem – endodermis – pericycle
(3) phellem – endodermis – pericycle – phloem
(4) pericycle – phellem – endodermis – phloem

25.

In TS of dicot root all tissue on the inner side of the endodermis such as Pericycle, vascular bundles and pith constitute the ________.

1.	Medulla	2.	Metaxylem
3.	Pith	4.	Stele

26. In the transverse section of a dicot stem, the correct chronological order of the appearance of the following structures [from epidermis towards pith] will be:

1.	Hypodermis – Pericycle – Endodermis – Vascular bundles
2.	Vascular bundles – Pericycle – Endodermis – Hypodermis
3.	Hypodermis – Endodermis – Pericycle – Vascular bundles
4.	Vascular bundles – Endodermis – Pericycle – Hypodermis

27. In Dorsiventral (Dicotyledonous) Leaf:

I:	The adaxial epidermis generally bears more stomata than the abaxial epidermis.
II:	Mesophyll has two types of cells – the palisade parenchyma and the spongy parenchyma.

1. I is correct; II is correct
2. I is incorrect; II is correct
3. I is incorrect; II is incorrect
4. I is correct; II is incorrect

28.

Tracheids are

1.	Elongated cells with tapering ends and unperforated end walls
2.	Elongated cells with tapering ends and perforated end wall
3.	Rounded cells with lignified walls
4.	Both 1 and 2

29.

Secondary growth in extra stelar region is due to

1.	Phellogen	2.	Cork cambium
3.	Extrastelar cambium	4.	All of these

30. Which layer is most likely to have passage cells?
1. Pericycle
2. Epidermis
3. Endodermis
4. Cortex

31.

Epidermis in plant is generally

1.	Single layered
2.	Double layered
3.	Triple layered
4.	Present in patches

32.

A tree can be killed by removing its bark, as this also removes the ________.

1.	Phelloderm only	2.	Phellem only
3.	Primary xylem	4.	Secondary phloem

33.

Which is the correct set of options with respect to the following?

1.	Dicot stem – Differentiated ground tissue.
	Monocot stem – Endarch xylem.
	Dicot leaf – Isobilateral leaf.
	Monocot leaf – Dorsiventral leaf.
2.	Dicot stem – Scattered vascular bundle.
	Monocot stem – Arranged vascular bundle.
	Dicot leaf – Amphistomatic.
	Monocot leaf – Hypostomatic.
3.	Dicot stem – Endodermis is called a starch sheath.
	Monocot stem – Vascular bundle surrounded by a sclerenchymatous sheath.
	Dicot leaf – Palisade and spongy parenchyma.
	Monocot leaf – Stomata present on both surfaces.
4.	Dicot stem – Arranged vascular bundle.
	Monocot stem – Endodermis is called a starch sheath.
	Dicot leaf – Amphistomatatic.
	Monocot leaf – Palisade and spongy parenchyma.

34.

Dicot root is different from monocot root in having

1.	Fewer xylem bundles
2.	Polyarch condition
3.	Large and well-developed pith
4.	Pericycle

35.

In plant stem the epidermal hairs are called

1.	Cilia	2.	Trichomes
3.	Trichoderms	4.	Trichromes

Biology-I-Section-B

36.

Mark the incorrect option with respect to the internal structure of monocot stem

1.	Absence of pith
2.	Parenchymatous hypodermis
3.	Endodermis is absent
4.	Scattered vascular bundles

37.

In monocotyledons the vascular bundle have no ________ present in them.

1. Xylem
2. Cambium
3. Cork
4. Phloem

38.

Which of the following is true for complimentary cells?

1.	thin walled and colorless
2.	parenchymatous and rounded
3.	non- suberised
4.	All of the above

39.

In Dicots, Secondary growth is possible because of

1.	cambium
2.	xylem and Phloem
3.	Vascular bundle
4.	Both 2. and 3.

40.

The vascular system in plant consist of

1.	Xylem and phloem
2.	Xylem parenchyma and cortex
3.	Epidermis and cortex
4.	None of the above

41.

Protoxylem and stomata in a dorsiventral leaf are present
1. on the abaxial and adaxial sides, respectively
2. on the adaxial and abaxial sides, respectively
3. on the adaxial side
4. on the abaxial side

42.

In conjoint type vascular bundle xylem and phloem are present on _________ radii and & phloem is located on the __________side of the xylem.
1. same and outer
2. same and inner
3. different and inner
4. different and outer

43.

Consider the given two statements:

I:	The term lenticel is usually associated with the breakage of periderm tissue; however, lenticels also refer to the lightly colored spots found on apples.
II:	Both structures have similar functions in gas exchange.

1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. I is incorrect but II is correct

44.

Consider the following features:

I.	Presence of trichomes and absence of stomata.
II.	Presence of a hypodermis made up of sclerenchyma and presence of undifferentiated ground tissue.
III.	Presence of numerous vascular bundles irregularly scattered with centrifugal arrangement.
IV.	Vascular bundles are conjoint, collateral & closed with endarch xylem.
V.	Presence of a lysigenous cavity.
VI.	Presence of phloem parenchyma.
VII.	Presence of a bundle sheath made up of sclerenchyma.

The features of a typical monocot stem include:

1.	I, II, III, IV, V, VI, VIII
2.	II, III, IV, V, VIII
3.	I, II, III, IV, V, VI
4.	II, III, IV, VI, VIII

45.

The isobilateral leaf is characterized by all the given characteristics, except

1.	Vascular bundles are always closed
2.	Xylem is towards the adaxial surface of leaf
3.	Mesophyll cells are not differentiated
4.	Parenchymatous extensions of the bundle sheath

46.

Assertion(A):	Secondary growth is absent in monocots
Reason(R):	Monocots lack vascular cambium.

1.	Both (A) & (R) are true and (R) is the correct explanation of (A)
2.	Both (A) & (R) are true but (R) is not the correct explanation of (A).
3.	(A) is a true statement but (R) is false.
4.	Both (A) and (R) are false statements.

47.

The function of lenticels are

1.	exchange of gases
2.	helps in transpiration
3.	helps in vegetative reproduction
4.	All of these

48.

Bulliform cells are associated with

1.	The epidermis of dorsiventral leaves
2.	The adaxial epidermis of isobilateral leaves
3.	The abaxial epidermis of monocot leaves
4.	Mesophylls of dicot leaves

49.

Vascular tissue system consists of

1.	xylem and Phloem
2.	Phloem and cambium
3.	Xylem, Phloem and cambium
4.	All of the above

50.

Complimentary cells are formed by the activity of

1.	phellogen	2.	phellem
3.	phelloderm	4.	All of these

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