07. Secondary Growth
Anatomy of Flowering Plants

271868 The following diagrams show the types of secondary thickenings in the xylem vessels. Identify the types labelled from A to F. Choose the correct option from those given.
Biology Question Image

1 \(\mathrm{A}=\) Spiral, \(\mathrm{B}=\) Annular, \(\mathrm{C}=\) Reticulate, \(\mathrm{D}=\) Scalariform, \(\mathrm{E}=\) Pitted with border, \(\mathrm{F}=\) Pitted, simple
2 \(\mathrm{A}=\) Annular, \(\mathrm{B}=\) Spiral, \(\mathrm{C}=\) Scalariform, \(\mathrm{D}\) \(=\) Reticulate, \(\mathrm{E}=\) Pitted with border, \(\mathrm{F}=\) Pitted, simple
3 \(\mathrm{A}=\) Annular, \(\mathrm{B}=\) Spiral, \(\mathrm{C}=\) Scalariform, \(\mathrm{D}\) \(=\) Reticulate, \(\mathrm{E}=\) Pitted, simple \(\mathrm{F}=\) Pitted with border
4 \(\mathrm{A}=\) Spiral, \(\mathrm{B}=\) Annular, \(\mathrm{C}=\) Scalariform, \(\mathrm{D}\) \(=\) Reticulate, \(\mathrm{E}=\) Pitted with border, \(\mathrm{F}=\) Pitted, simple
Anatomy of Flowering Plants

271857 Jute fibres are obtained from the

1 secondary phloem
2 pith
3 xylem
4 endodermis
Anatomy of Flowering Plants

271864 Secondary cortex is also known as :

1 Phellem
2 Phelloderm
3 Phellogen
4 Bark
Anatomy of Flowering Plants

271856 In Cycas stem, open vascular bundle is characterized by

1 phloem being sand witched between xylem
2 cambium present in between xylem and phloem
3 xylem being sand witched between phloem
4 xylem and phloem occurring on different radii
Anatomy of Flowering Plants

271868 The following diagrams show the types of secondary thickenings in the xylem vessels. Identify the types labelled from A to F. Choose the correct option from those given.
Biology Question Image

1 \(\mathrm{A}=\) Spiral, \(\mathrm{B}=\) Annular, \(\mathrm{C}=\) Reticulate, \(\mathrm{D}=\) Scalariform, \(\mathrm{E}=\) Pitted with border, \(\mathrm{F}=\) Pitted, simple
2 \(\mathrm{A}=\) Annular, \(\mathrm{B}=\) Spiral, \(\mathrm{C}=\) Scalariform, \(\mathrm{D}\) \(=\) Reticulate, \(\mathrm{E}=\) Pitted with border, \(\mathrm{F}=\) Pitted, simple
3 \(\mathrm{A}=\) Annular, \(\mathrm{B}=\) Spiral, \(\mathrm{C}=\) Scalariform, \(\mathrm{D}\) \(=\) Reticulate, \(\mathrm{E}=\) Pitted, simple \(\mathrm{F}=\) Pitted with border
4 \(\mathrm{A}=\) Spiral, \(\mathrm{B}=\) Annular, \(\mathrm{C}=\) Scalariform, \(\mathrm{D}\) \(=\) Reticulate, \(\mathrm{E}=\) Pitted with border, \(\mathrm{F}=\) Pitted, simple
Anatomy of Flowering Plants

271857 Jute fibres are obtained from the

1 secondary phloem
2 pith
3 xylem
4 endodermis
Anatomy of Flowering Plants

271864 Secondary cortex is also known as :

1 Phellem
2 Phelloderm
3 Phellogen
4 Bark
Anatomy of Flowering Plants

271856 In Cycas stem, open vascular bundle is characterized by

1 phloem being sand witched between xylem
2 cambium present in between xylem and phloem
3 xylem being sand witched between phloem
4 xylem and phloem occurring on different radii
Anatomy of Flowering Plants

271868 The following diagrams show the types of secondary thickenings in the xylem vessels. Identify the types labelled from A to F. Choose the correct option from those given.
Biology Question Image

1 \(\mathrm{A}=\) Spiral, \(\mathrm{B}=\) Annular, \(\mathrm{C}=\) Reticulate, \(\mathrm{D}=\) Scalariform, \(\mathrm{E}=\) Pitted with border, \(\mathrm{F}=\) Pitted, simple
2 \(\mathrm{A}=\) Annular, \(\mathrm{B}=\) Spiral, \(\mathrm{C}=\) Scalariform, \(\mathrm{D}\) \(=\) Reticulate, \(\mathrm{E}=\) Pitted with border, \(\mathrm{F}=\) Pitted, simple
3 \(\mathrm{A}=\) Annular, \(\mathrm{B}=\) Spiral, \(\mathrm{C}=\) Scalariform, \(\mathrm{D}\) \(=\) Reticulate, \(\mathrm{E}=\) Pitted, simple \(\mathrm{F}=\) Pitted with border
4 \(\mathrm{A}=\) Spiral, \(\mathrm{B}=\) Annular, \(\mathrm{C}=\) Scalariform, \(\mathrm{D}\) \(=\) Reticulate, \(\mathrm{E}=\) Pitted with border, \(\mathrm{F}=\) Pitted, simple
Anatomy of Flowering Plants

271857 Jute fibres are obtained from the

1 secondary phloem
2 pith
3 xylem
4 endodermis
Anatomy of Flowering Plants

271864 Secondary cortex is also known as :

1 Phellem
2 Phelloderm
3 Phellogen
4 Bark
Anatomy of Flowering Plants

271856 In Cycas stem, open vascular bundle is characterized by

1 phloem being sand witched between xylem
2 cambium present in between xylem and phloem
3 xylem being sand witched between phloem
4 xylem and phloem occurring on different radii
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Anatomy of Flowering Plants

271868 The following diagrams show the types of secondary thickenings in the xylem vessels. Identify the types labelled from A to F. Choose the correct option from those given.
Biology Question Image

1 \(\mathrm{A}=\) Spiral, \(\mathrm{B}=\) Annular, \(\mathrm{C}=\) Reticulate, \(\mathrm{D}=\) Scalariform, \(\mathrm{E}=\) Pitted with border, \(\mathrm{F}=\) Pitted, simple
2 \(\mathrm{A}=\) Annular, \(\mathrm{B}=\) Spiral, \(\mathrm{C}=\) Scalariform, \(\mathrm{D}\) \(=\) Reticulate, \(\mathrm{E}=\) Pitted with border, \(\mathrm{F}=\) Pitted, simple
3 \(\mathrm{A}=\) Annular, \(\mathrm{B}=\) Spiral, \(\mathrm{C}=\) Scalariform, \(\mathrm{D}\) \(=\) Reticulate, \(\mathrm{E}=\) Pitted, simple \(\mathrm{F}=\) Pitted with border
4 \(\mathrm{A}=\) Spiral, \(\mathrm{B}=\) Annular, \(\mathrm{C}=\) Scalariform, \(\mathrm{D}\) \(=\) Reticulate, \(\mathrm{E}=\) Pitted with border, \(\mathrm{F}=\) Pitted, simple
Anatomy of Flowering Plants

271857 Jute fibres are obtained from the

1 secondary phloem
2 pith
3 xylem
4 endodermis
Anatomy of Flowering Plants

271864 Secondary cortex is also known as :

1 Phellem
2 Phelloderm
3 Phellogen
4 Bark
Anatomy of Flowering Plants

271856 In Cycas stem, open vascular bundle is characterized by

1 phloem being sand witched between xylem
2 cambium present in between xylem and phloem
3 xylem being sand witched between phloem
4 xylem and phloem occurring on different radii