Structural Organisation in Animals & Plants Test

Result

Structural Organisation in Animals & Plants Test - 5

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

Lateral meristems are cylindrical meristems and they occur in the mature regions of root and shoot of many plants. Which of the following are examples of lateral meristems?

a. Cork-cambium
b. Intercalary meristem
c. Fascicular vascular cambium
d. Apical meristem

A
Only a and b

B
Only b and c

C
Only a and c

D
Only b and d

Solution

This is the correct option. Cork-cambium and fascicular vascular cambium are examples of lateral meristems. Secondary tissues are produced by them.
Question 2
1 / -0

Which of the following tissues is/are produced by the apical meristem during the formation of the primary plant body?

a. Dermal tissue
b. Ground tissue
c. Connective tissue
d. Vascular tissue

A
Only a and c

B
Only c

C
Only b and c

D
Only a, b and d

Solution

This is the correct option. Dermal tissue, ground tissue and vascular tissue are produced by the specific regions of the apical meristem.
Question 3
1 / -0

Which of the following provide(s) mechanical strength to young dicot stems, petioles and leaves?

a. Parenchyma
b. Collenchyma
c. Sclerenchyma

A
Only a

B
Only a and b

C
Only b

D
Only b and c

Solution

This is the correct option. Collenchyma provides mechanical strength to young dicot stems, petioles and leaves.
Question 4
1 / -0

Sclereids are of many types. Which of the following sclereids are unbranched, short and isodiametric with ramiform pits?

A
Osteosclereids

B
Astrosclereids

C
Brachysclereids

D
Macrosclereids

Solution

This is the correct option. Brachysclereids are unbranched, short and isodiametric with ramiform pits. Example is the grit of guava.
Question 5
1 / -0

Which of the following is not a characteristic of permanent tissues?

A
The cells are large and of different shapes.

B
Vacuoles are either small or absent.

C
Crystals and other cell inclusions are often present.

D
Plastids are present in the living permanent cells.

Solution

This is the correct option as this is not a characteristic of permanent tissues. Living cells of permanent tissues usually possess central vacuole.
Question 6
1 / -0

Xylem is a complex tissue and consists of four types of cells. Which of the following are not a type of xylem cell?

A
Tracheids

B
Vessels

C
Parenchyma

D
Bast fibres

Solution

Bast fibres are not a type of xylem cell. They are a type of phloem cell. Sclerenchyma fibres found in the phloem are called bast fibres.
Question 7
1 / -0

Depending upon the position of protoxylem in relation to metaxylem, xylem can be of four types. In which of the following types of xylem does protoxylem lie towards the outside of metaxylem?

A
Centrifugal

B
Exarch

C
Mesarch

D
Centrarch

Solution

Primary xylem is of two types – protoxylem and metaxylem. The first formed primary xylem elements are called protoxylem and the later formed primary xylem is called metaxylem. In roots, the protoxylem lies towards periphery and metaxylem lies towards the centre. Such arrangement of primary xylem is called exarch.
Question 8
1 / -0

Trichomes are of two types, hairs and scales. Which of the following hairs are unicellular or multicellular appendages which are covered by a layer of cuticle?

A
Stinging hairs

B
Root hairs

C
Aerial hairs

D
Glandular hairs

Solution

This is the correct option. Aerial hairs are unicellular or multicellular appendages which are covered by a layer of cuticle.
Question 9
1 / -0

In root and dicot stems, the ground tissue system is differentiated into hypodermis, cortex, endodermis, pith and medullary rays. Which of the following acts as a check post between vascular strand and cortex?

A
Endodermis

B
Hypodermis

C
Cortex

D
Pith

Solution

This is the correct option. Endodermis acts as a check post between vascular strand and cortex.
Question 10
1 / -0

Read the following statements and answer accordingly:

a. Epidermis is the outermost layer of the stem which is made up of compactly arranged transparent, elongated and rectangular barrel-shaped living parenchyma cells.
b. The outer walls of epidermal cells possess deposition of silica and cutin.

A
Both the statements are true.

B
Both the statements are false.

C
Statement 'a' is true but statement 'b' is false.

D
Statement 'b' is true but statement 'a' is false.

Solution

This is the correct option as both the statements are true.
Epidermis is the outermost layer of the stem which is made up of compactly arranged transparent, elongated and rectangular barrel-shaped living parenchyma cells. The outer walls of epidermal cells possess deposition of silica and cutin.
Question 11
1 / -0

Which of the following is a characteristic of monocot stem?

A
Stroma have kidney-shaped guard cells.

B
The hypodermis is made up of collenchyma which may be green.

C
The vascular bundles are arranged in ring around the pith.

D
Phloem parenchyma is absent.

Solution

This is the correct option as this is a characteristic of monocot stem. Phloem parenchyma is absent in a monocot stem.
Question 12
1 / -0

Read the following statements and answer accordingly:

a. Ray initials produce axial system while fusiform initials form radial system of secondary vascular tissues.
b. Fusiform initials divide to form secondary phloem on the outer side and secondary xylem on the inner side.

A
Both the statements are true.

B
Both the statements are false.

C
Statement 'a' is false but statement 'b' is true.

D
Statement 'b' is false but statement 'a' is true.

Solution

Ray initials produce radial system while fusiform initials form axial system of secondary vascular tissues.
Fusiform initials divide to form secondary phloem on the outer side and secondary xylem on the inner side.
Question 13
1 / -0

Which of the following are rows of radially arranged cells which are formed in the secondary vascular tissues and conduct water and organic food?

A
Vascular rays

B
Secondary phloem

C
Secondary xylem

D
None of the above

Solution

This is the correct option. Vascular rays are rows of radially arranged cells which are formed in the secondary vascular tissues and conduct water and organic food.
Question 14
1 / -0

Several of the softwoods like those of Cedrus, Pinus species are very easy to work with. Which of the following statements is correct about softwood?

A
It is the technical name of dicot wood.

B
It contains vessels and is thus called porous wood.

C
Wood or xylem fibres are abundant.

D
Its tracheid content can be 90-95%.

Solution

This is the correct option. Softwood's tracheid content can be 90-95%.
Question 15
1 / -0

Anatomically, there can be three types of leaves. In which of the following types of leaves, a distinction into upper and lower surfaces is absent?

a. Dorsiventral
b. Isobilateral
c. Unifacial

A
Only a

B
Only a and b

C
Only a and c

D
Only b and c

Solution

This is the correct option. In isobilateral and unifacial types of leaves, a distinction into upper and lower surfaces is absent.

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Structural Organisation in Animals & Plants Test - 5

Result

Structural Organisation in Animals & Plants Test - 5

Score

-

Rank

-

SHARING IS CARING

Question 1

Only a and b

Only b and c

Only a and c

Only b and d

Solution

Question 2

Only a and c

Only c

Only b and c

Only a, b and d

Solution

Question 3

Only a

Only a and b

Only b

Only b and c

Solution

Question 4

Osteosclereids

Astrosclereids

Brachysclereids

Macrosclereids

Solution

Question 5

The cells are large and of different shapes.

Vacuoles are either small or absent.

Crystals and other cell inclusions are often present.

Plastids are present in the living permanent cells.

Solution

Question 6

Tracheids

Vessels

Parenchyma

Bast fibres

Solution

Question 7

Centrifugal

Exarch

Mesarch

Centrarch

Solution

Question 8

Stinging hairs

Root hairs

Aerial hairs

Glandular hairs

Solution

Question 9

Endodermis

Hypodermis

Cortex

Pith

Solution

Question 10

Both the statements are true.

Both the statements are false.

Statement 'a' is true but statement 'b' is false.

Statement 'b' is true but statement 'a' is false.

Solution

Question 11

Stroma have kidney-shaped guard cells.

The hypodermis is made up of collenchyma which may be green.

The vascular bundles are arranged in ring around the pith.

Phloem parenchyma is absent.

Solution

Question 12

Both the statements are true.

Both the statements are false.

Statement 'a' is false but statement 'b' is true.

Statement 'b' is false but statement 'a' is true.

Solution