Anatomy of Flowering Plants

Annual rings in woody dicot stems are formed due to:

1. Alternating activity of vascular cambium during different seasons
2. Activity of apical meristem only
3. Formation of epidermis every year
4. Growth of cortex alone

Which of the following is a complex permanent tissue?

1. Parenchyma
2. Collenchyma
3. Sclerenchyma
4. Phloem

The vascular bundles in monocot stems are:

1. Open and arranged in a ring
2. Closed and scattered
3. Open and scattered
4. Closed and arranged in a ring

Which plant tissue is mainly responsible for photosynthesis when chloroplasts are present?

1. Chlorenchyma
2. Sclerenchyma
3. Phloem fibres
4. Cork

Which tissue gives rise to cork during secondary growth?

1. Vascular cambium
2. Cork cambium
3. Apical meristem
4. Pericycle

In dicot roots, xylem is generally:

1. Polyarch
2. Tetrarch or fewer
3. Scattered
4. Absent

Casparian strips are characteristic of:

1. Epidermis
2. Endodermis
3. Cortex
4. Pith

The outermost protective layer of young plant organs is the:

1. Endodermis
2. Pericycle
3. Epidermis
4. Cortex

Which of the following is absent in monocot stems?

1. Epidermis
2. Ground tissue
3. Secondary growth
4. Vascular bundles

Which tissue transports food in flowering plants?

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

Which component of xylem remains living at maturity?

1. Tracheids
2. Vessels
3. Xylem fibres
4. Xylem parenchyma

Xylem transports:

1. Food only
2. Water and minerals
3. Hormones only
4. Oxygen

The chief function of sclerenchyma is:

1. Storage of food
2. Photosynthesis
3. Mechanical support and strength
4. Water absorption

Which simple permanent tissue consists of living cells with unevenly thickened corners?

1. Parenchyma
2. Collenchyma
3. Sclerenchyma
4. Cork

Which of the following tissues is responsible for the increase in girth of dicot stems?

1. Apical meristem
2. Intercalary meristem
3. Lateral meristem
4. Permanent tissue