334009
Identify the wrong statement in context of Heartwood
1 It is highly durable
2 It conducts water and minerals efficiently
3 It comprises dead elements with highly lignified walls
4 Organic compounds are deposited in it
Explanation:
Heartwood will not conduct water and minerals because heartwood is physiologically inactive due to deposition of organic compounds and tyloses formation.
NEET - 2018
BIOXI06: ANATOMY OF FLOWERING PLANTS
334010
Which of the statements given below is not true about formation of Annual Rings in trees?
1 Annual ring is a combination of spring wood and autumn wood produced in a year
2 Differential activity of cambium causes light and dark bands of tissue early and late wood respectively.
3 Activity of cambium depends upon variation in climate.
4 Annual rings are not prominent in trees of temperate region.
Explanation:
Growth rings are formed by the seasonal activity of cambium. In plants of temperate regions, cambium is more active in spring and less active in autumn seasons. In temperate regions climatic conditions are not uniform throughout the year. However in tropics climatic conditions are uniform throughout the year.
NEET - 2018
BIOXI06: ANATOMY OF FLOWERING PLANTS
334011
Annual rings are distinct in plants growing in
1 Tropical regions
2 Temperature regions
3 Antartics
4 Arctics
Explanation:
More distinct annual rings are formed in that region where climactic variations are sharp. More distinct annual rings are formed in plants in temperate region.
BIOXI06: ANATOMY OF FLOWERING PLANTS
334012
Age of a tree can be estimated by
1 Its height and girth
2 Biomass
3 Number of annual rings
4 Diameter of its heartwood
Explanation:
Age of tree can be estimated by number of annual rings. This study is known as dendrochronology. The two kinds of woods that appear as alternate concentric rings constitute an annual ring heartwood comprises dead elements with highly lignified walls that give mechanical support to the stem. The height and girth of a tree increases due to the activity of vascular cambium.
334009
Identify the wrong statement in context of Heartwood
1 It is highly durable
2 It conducts water and minerals efficiently
3 It comprises dead elements with highly lignified walls
4 Organic compounds are deposited in it
Explanation:
Heartwood will not conduct water and minerals because heartwood is physiologically inactive due to deposition of organic compounds and tyloses formation.
NEET - 2018
BIOXI06: ANATOMY OF FLOWERING PLANTS
334010
Which of the statements given below is not true about formation of Annual Rings in trees?
1 Annual ring is a combination of spring wood and autumn wood produced in a year
2 Differential activity of cambium causes light and dark bands of tissue early and late wood respectively.
3 Activity of cambium depends upon variation in climate.
4 Annual rings are not prominent in trees of temperate region.
Explanation:
Growth rings are formed by the seasonal activity of cambium. In plants of temperate regions, cambium is more active in spring and less active in autumn seasons. In temperate regions climatic conditions are not uniform throughout the year. However in tropics climatic conditions are uniform throughout the year.
NEET - 2018
BIOXI06: ANATOMY OF FLOWERING PLANTS
334011
Annual rings are distinct in plants growing in
1 Tropical regions
2 Temperature regions
3 Antartics
4 Arctics
Explanation:
More distinct annual rings are formed in that region where climactic variations are sharp. More distinct annual rings are formed in plants in temperate region.
BIOXI06: ANATOMY OF FLOWERING PLANTS
334012
Age of a tree can be estimated by
1 Its height and girth
2 Biomass
3 Number of annual rings
4 Diameter of its heartwood
Explanation:
Age of tree can be estimated by number of annual rings. This study is known as dendrochronology. The two kinds of woods that appear as alternate concentric rings constitute an annual ring heartwood comprises dead elements with highly lignified walls that give mechanical support to the stem. The height and girth of a tree increases due to the activity of vascular cambium.
334009
Identify the wrong statement in context of Heartwood
1 It is highly durable
2 It conducts water and minerals efficiently
3 It comprises dead elements with highly lignified walls
4 Organic compounds are deposited in it
Explanation:
Heartwood will not conduct water and minerals because heartwood is physiologically inactive due to deposition of organic compounds and tyloses formation.
NEET - 2018
BIOXI06: ANATOMY OF FLOWERING PLANTS
334010
Which of the statements given below is not true about formation of Annual Rings in trees?
1 Annual ring is a combination of spring wood and autumn wood produced in a year
2 Differential activity of cambium causes light and dark bands of tissue early and late wood respectively.
3 Activity of cambium depends upon variation in climate.
4 Annual rings are not prominent in trees of temperate region.
Explanation:
Growth rings are formed by the seasonal activity of cambium. In plants of temperate regions, cambium is more active in spring and less active in autumn seasons. In temperate regions climatic conditions are not uniform throughout the year. However in tropics climatic conditions are uniform throughout the year.
NEET - 2018
BIOXI06: ANATOMY OF FLOWERING PLANTS
334011
Annual rings are distinct in plants growing in
1 Tropical regions
2 Temperature regions
3 Antartics
4 Arctics
Explanation:
More distinct annual rings are formed in that region where climactic variations are sharp. More distinct annual rings are formed in plants in temperate region.
BIOXI06: ANATOMY OF FLOWERING PLANTS
334012
Age of a tree can be estimated by
1 Its height and girth
2 Biomass
3 Number of annual rings
4 Diameter of its heartwood
Explanation:
Age of tree can be estimated by number of annual rings. This study is known as dendrochronology. The two kinds of woods that appear as alternate concentric rings constitute an annual ring heartwood comprises dead elements with highly lignified walls that give mechanical support to the stem. The height and girth of a tree increases due to the activity of vascular cambium.
334009
Identify the wrong statement in context of Heartwood
1 It is highly durable
2 It conducts water and minerals efficiently
3 It comprises dead elements with highly lignified walls
4 Organic compounds are deposited in it
Explanation:
Heartwood will not conduct water and minerals because heartwood is physiologically inactive due to deposition of organic compounds and tyloses formation.
NEET - 2018
BIOXI06: ANATOMY OF FLOWERING PLANTS
334010
Which of the statements given below is not true about formation of Annual Rings in trees?
1 Annual ring is a combination of spring wood and autumn wood produced in a year
2 Differential activity of cambium causes light and dark bands of tissue early and late wood respectively.
3 Activity of cambium depends upon variation in climate.
4 Annual rings are not prominent in trees of temperate region.
Explanation:
Growth rings are formed by the seasonal activity of cambium. In plants of temperate regions, cambium is more active in spring and less active in autumn seasons. In temperate regions climatic conditions are not uniform throughout the year. However in tropics climatic conditions are uniform throughout the year.
NEET - 2018
BIOXI06: ANATOMY OF FLOWERING PLANTS
334011
Annual rings are distinct in plants growing in
1 Tropical regions
2 Temperature regions
3 Antartics
4 Arctics
Explanation:
More distinct annual rings are formed in that region where climactic variations are sharp. More distinct annual rings are formed in plants in temperate region.
BIOXI06: ANATOMY OF FLOWERING PLANTS
334012
Age of a tree can be estimated by
1 Its height and girth
2 Biomass
3 Number of annual rings
4 Diameter of its heartwood
Explanation:
Age of tree can be estimated by number of annual rings. This study is known as dendrochronology. The two kinds of woods that appear as alternate concentric rings constitute an annual ring heartwood comprises dead elements with highly lignified walls that give mechanical support to the stem. The height and girth of a tree increases due to the activity of vascular cambium.
