The activity of the vascular cambium in temperate regions is influenced by:
Seasonal changes
Gravitational pull
Presence of lenticels
Root pressure
Related Questions
Lenticels primarily facilitate:
(A) Photosynthesis
(B) Transpiration
(C) Gaseous exchange
(D) Water transport
A
B
C
D
Which type of wood is formed during the period of high cambial activity in trees?
Heartwood
Sapwood
Springwood
Autumn wood
Which of the following is NOT a function of the Golgi apparatus?
Protein modification
Packaging of secretory vesicles
Lipid synthesis
Formation of lysosomes
In woody trees, the exchange of gases between the outer atmosphere and the internal tissue of the stem takes place through
Aerenchyma
Stomata
Pneumatophores
Lenticels
The loosely arranged non-chlorophyllous parenchyma cells present in lenticels, are called
Complementary cells
Passage cells
Water stomata
Albuminous cells
During secondary growth new meristematic tissues arrising in the cortical region of the stem are called
Phellem
Phelloderm
Secondary cortex
Phellogen
I. Youngest secondary phloem is just outside the cambium, while youngest secondary xylem is present inside the cambium
II. Oldest secondary phloem is just inside the primary phloem, while oldest secondary xylem is just above pith
III. Secondary medullary ray passes through both secondary xylem and secondary phloem
Select the incorrect statement from above
I
II
III
I and III
In dicot stem, secondary xylem lie towards the …A… and secondary phloem lie towards the …B… .
Choose the correct combination of options for A and B
A-pith; B-periphery
A-periphery; B-pith
A-periphery; B-laterally
A-pith; B-laterally
A plant with a damaged vascular cambium will likely have difficulty in:
Absorbing water from the soil
Carrying out photosynthesis
Transporting water, minerals, and sugars
Producing flowers
Cambium is a type of
Apical meristem
Intercalary meristem
Lateral meristem
Permanent of mature meristem
