NEET Test Series from KOTA - 10 Papers In MS WORD
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Morphology of Plants
62147
Pneumatophores are positively:
1 geotropic
2 phototropic
3 aerotropic
4 rheotropic
Explanation:
C Pneumatophores are positively 'aerotropic'. These roots are another name for 'Breathing roots'. They are positively aerotropic, negatively geotropic and negatively hydrotropic. Because they grow vertically upward and have breathing pore called pneumatophores. They are connected with internal parenchymatous tissues i.e; Aerotropic.
HP CET-2011
Morphology of Plants
62148
In which pneumatophores are found?
1 Tinospora
2 Pinus
3 Rhizophora
4 None of these
Explanation:
C Pneumatophores are found in 'Rhizophora'. These are specialized erect roots that are present above the ground. It is also called breathing roots. They are present in Rhizophora and mangrove trees. In Rhizophora, pneumatophores roots are found which is helpful to get oxygen for respiration from atmosphere.
Haryana PMT-2004
Morphology of Plants
62149
Which of the following statement is not correct?
1 Rhizome is a condensed form of stem
2 The apical bud in rhizome always remains above the ground
3 The rhizome is aerial with no distinct nodes and internodes
4 The rhizome is thick, prostrate and branched
Explanation:
C These are non-green with distinct nodes and internodes. There are axillary as well as apical buds. These are brownish in colour. The common types of rhizomes are fleshy due to the storage of food material. It also contains terminal buds. E.g.:- Ginger
NEET (Re-Exam)-04.09.2022
Morphology of Plants
62150
Roots with negative geotropism for the purpose of oxygen is found in the following:
1 Pillar roots
2 Stilt roots
3 Pneumatophores
4 Velamen roots
Explanation:
C Pneumatophores are specialized root structures that grow out from the water surface and facilitate the aeration necessary for root respiration in hydrophytic trees. Pneumatophores are the specialized erect roots (a modification of root) which facilitate the exchange of gases in plants growing in marshy areas.
C Pneumatophores are positively 'aerotropic'. These roots are another name for 'Breathing roots'. They are positively aerotropic, negatively geotropic and negatively hydrotropic. Because they grow vertically upward and have breathing pore called pneumatophores. They are connected with internal parenchymatous tissues i.e; Aerotropic.
HP CET-2011
Morphology of Plants
62148
In which pneumatophores are found?
1 Tinospora
2 Pinus
3 Rhizophora
4 None of these
Explanation:
C Pneumatophores are found in 'Rhizophora'. These are specialized erect roots that are present above the ground. It is also called breathing roots. They are present in Rhizophora and mangrove trees. In Rhizophora, pneumatophores roots are found which is helpful to get oxygen for respiration from atmosphere.
Haryana PMT-2004
Morphology of Plants
62149
Which of the following statement is not correct?
1 Rhizome is a condensed form of stem
2 The apical bud in rhizome always remains above the ground
3 The rhizome is aerial with no distinct nodes and internodes
4 The rhizome is thick, prostrate and branched
Explanation:
C These are non-green with distinct nodes and internodes. There are axillary as well as apical buds. These are brownish in colour. The common types of rhizomes are fleshy due to the storage of food material. It also contains terminal buds. E.g.:- Ginger
NEET (Re-Exam)-04.09.2022
Morphology of Plants
62150
Roots with negative geotropism for the purpose of oxygen is found in the following:
1 Pillar roots
2 Stilt roots
3 Pneumatophores
4 Velamen roots
Explanation:
C Pneumatophores are specialized root structures that grow out from the water surface and facilitate the aeration necessary for root respiration in hydrophytic trees. Pneumatophores are the specialized erect roots (a modification of root) which facilitate the exchange of gases in plants growing in marshy areas.
C Pneumatophores are positively 'aerotropic'. These roots are another name for 'Breathing roots'. They are positively aerotropic, negatively geotropic and negatively hydrotropic. Because they grow vertically upward and have breathing pore called pneumatophores. They are connected with internal parenchymatous tissues i.e; Aerotropic.
HP CET-2011
Morphology of Plants
62148
In which pneumatophores are found?
1 Tinospora
2 Pinus
3 Rhizophora
4 None of these
Explanation:
C Pneumatophores are found in 'Rhizophora'. These are specialized erect roots that are present above the ground. It is also called breathing roots. They are present in Rhizophora and mangrove trees. In Rhizophora, pneumatophores roots are found which is helpful to get oxygen for respiration from atmosphere.
Haryana PMT-2004
Morphology of Plants
62149
Which of the following statement is not correct?
1 Rhizome is a condensed form of stem
2 The apical bud in rhizome always remains above the ground
3 The rhizome is aerial with no distinct nodes and internodes
4 The rhizome is thick, prostrate and branched
Explanation:
C These are non-green with distinct nodes and internodes. There are axillary as well as apical buds. These are brownish in colour. The common types of rhizomes are fleshy due to the storage of food material. It also contains terminal buds. E.g.:- Ginger
NEET (Re-Exam)-04.09.2022
Morphology of Plants
62150
Roots with negative geotropism for the purpose of oxygen is found in the following:
1 Pillar roots
2 Stilt roots
3 Pneumatophores
4 Velamen roots
Explanation:
C Pneumatophores are specialized root structures that grow out from the water surface and facilitate the aeration necessary for root respiration in hydrophytic trees. Pneumatophores are the specialized erect roots (a modification of root) which facilitate the exchange of gases in plants growing in marshy areas.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
Morphology of Plants
62147
Pneumatophores are positively:
1 geotropic
2 phototropic
3 aerotropic
4 rheotropic
Explanation:
C Pneumatophores are positively 'aerotropic'. These roots are another name for 'Breathing roots'. They are positively aerotropic, negatively geotropic and negatively hydrotropic. Because they grow vertically upward and have breathing pore called pneumatophores. They are connected with internal parenchymatous tissues i.e; Aerotropic.
HP CET-2011
Morphology of Plants
62148
In which pneumatophores are found?
1 Tinospora
2 Pinus
3 Rhizophora
4 None of these
Explanation:
C Pneumatophores are found in 'Rhizophora'. These are specialized erect roots that are present above the ground. It is also called breathing roots. They are present in Rhizophora and mangrove trees. In Rhizophora, pneumatophores roots are found which is helpful to get oxygen for respiration from atmosphere.
Haryana PMT-2004
Morphology of Plants
62149
Which of the following statement is not correct?
1 Rhizome is a condensed form of stem
2 The apical bud in rhizome always remains above the ground
3 The rhizome is aerial with no distinct nodes and internodes
4 The rhizome is thick, prostrate and branched
Explanation:
C These are non-green with distinct nodes and internodes. There are axillary as well as apical buds. These are brownish in colour. The common types of rhizomes are fleshy due to the storage of food material. It also contains terminal buds. E.g.:- Ginger
NEET (Re-Exam)-04.09.2022
Morphology of Plants
62150
Roots with negative geotropism for the purpose of oxygen is found in the following:
1 Pillar roots
2 Stilt roots
3 Pneumatophores
4 Velamen roots
Explanation:
C Pneumatophores are specialized root structures that grow out from the water surface and facilitate the aeration necessary for root respiration in hydrophytic trees. Pneumatophores are the specialized erect roots (a modification of root) which facilitate the exchange of gases in plants growing in marshy areas.
