Which of the following statement is true
Which of the following statement is true
- Vessels are multicellular and with wide lumen
- Tracheids are multicellular and with narrow lumen
- Vessels are unicellular and with narrow lumen
- Tracheids are unicellular and with wide lumen
The Correct Option is B
Solution and Explanation
The correct option is (B) : Tracheids are multicellular and with narrow lumen
The set of natural numbers is 1, 2, 3,. The set of whole numbers is 0,1,2,3,..... Every natural number is undoubtedly a whole number.
Top Questions on Transport in Plants
- Photosynthesis takes place in the leaves and the food prepared by it reaches other parts of the plants. Name the process involved and explain it.
- CBSE Class X - 2024
- Science
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- Match List-I with List-II :Choose the correct answer from the options given below
List-I List-II A. China rose I. Free central B. Mustard II. Basal C. Primrose III. Axile D. Marigold IV. Parietal - NEET (UG) - 2024
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Match List I with List II.
List I
List II
A Heroin I Effect on cardiovascular system B Marijuana II Slow down body function C Cocaine III Painkiller D Morphine IV Interfere with transport of dopamine Choose the correct answer from the options given below:
- NEET (UG) - 2023
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Given below are two statements:
Statement I: The forces generated transpiration can lift a xylem-sized column of water over 130 meters height.
Statement II: Transpiration cools leaf surfaces sometimes 10 to 15 degree evaporative cooling.In the light of the above statements, choose the most appropriate answer from the options given below:
- NEET (UG) - 2023
- Biology
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Match List I with List II:
List-I List-II (a) Cohesion (i) More attraction in liquid phase (b) Adhesion (ii) Mutual attraction among water molecules (c) Surface tension (iii) Water loss in liquid phase (d) Guttation (iv) Attraction towards polar surfaces Choose the correct answer from the options given below:
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Questions Asked in NEET exam
- Match List I with List II :Choose the correct answer from the options given below :
List - I List – II A. Residual Volume i. Maximum volume of air that can be breathed in after forced expiration B. Vital Capacity ii. Volume of air inspired or expired during normal respiration C. Expiratory Capacity iii. Volume of air remaining in lungs after forcible expiration D. Tidal Volume iv. Total volume of air expired after normal inspiration - NEET (UG) - 2024
- The respiratory system
- In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is 100x (kcal m-2)yr-1, what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?
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- These are regarded as major causes of biodiversity loss:
A. Over exploitation
B. Co-extinction
C. Mutation
D. Habitat loss and fragmentation
E. Migration
Choose the correct opisdn:- NEET (UG) - 2024
- loss of biodiversity
- Match List I with List II:Choose the correct answer from the options given below:
List I List II A Robert May I Species-Area relationship B Alexander von Humboldt II Long term ecosystem experiment using out door plots C Paul Ehrlich III Global species diversity at about 7 million D David Tilman IV Rivet popper hypothesis - NEET (UG) - 2024
- Species diversity
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The potential (V) at any axial point, at 2 m distance(r) from the centre of the dipole of dipole moment vector \(\vec{P}\) of magnitude, 4 × 10-6 C m, is ± 9 × 103 V.
(Take \(\frac{1}{4\pi\epsilon_0}=9\times10^9\) SI units)
Reason R : \(V=±\frac{2P}{4\pi \epsilon_0r^2}\), where r is the distance of any axial point, situated at 2 m from the centre of the dipole.
In the light of the above statements, choose the correct answer from the options given below :- NEET (UG) - 2024
- Magnetic Field
Concepts Used:
Transport in Plants
The two types of conducting tissues that are used to transport the water and minerals in plants such as:
Xylem:
Xylem is a long, non-living tube running from the roots to the leaves via the stem. The water is absorbed by the root hair and goes through cell-to-cell movement by osmosis until it reaches the xylem. This water is then transported throughout the xylem vessels to the leaves and is evaporated by the process of transpiration.
The xylem is also composed of lengthened cells like the phloem. However, the xylem is mainly accountable for transporting water to all plant parts from the roots. Since they serve such a vital function, a single tree would have a lot of xylem tissues.
Phloem:
The phloem is accountable for the translocation of nutrients and sugar like carbohydrates, produced by the leaves to areas of the plant that are metabolically in force. It is powered by living cells. The cell walls of these cells structurize small holes at the ends of the cells known as sieve plates.
Means of Transportation in Plants:
Transportation in plants is by 3 means, they are as follows:
- Diffusion
- Facilitated diffusion
- Active Transport