Transport in plants is a vital biological process that enables the movement of water, nutrients, and organic compounds throughout the plant structure. This category explores the intricate systems involved, including xylem and phloem, which facilitate the transportation of water and food respectively. Understanding these mechanisms is essential for grasping how plants thrive in diverse environments, adapt to changing conditions, and perform crucial functions such as photosynthesis and growth. Dive into this topic to uncover the fascinating ways plants sustain themselves and interact with their surroundings through effective transport systems.
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[q] What is the primary mechanism by which water is transported from roots to leaves in plants?
A) Transpiration
B) Capillary Action
C) Osmosis
D) Active Transport
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[a] Transpiration [q] What is the name of the tissue responsible for transporting nutrients and sugars in plants?
A) Xylem
B) Phloem
C) Cortex
D) Parenchyma [a] Phloem [q] Which process involves the movement of water molecules through a semipermeable membrane?
A) Diffusion
B) Filtration
C) Osmosis
D) Translocation [a] Osmosis [q] What driving force primarily causes the upward movement of water in plants?
A) Root Pressure
B) Transpirational Pull
C) Gravity
D) Soil Moisture [a] Transpirational Pull [q] In which part of the plant does transpiration mainly occur?
A) Roots
B) Stems
C) Leaves
D) Flowers [a] {answer_51]} [q] Which of the following is NOT a function of the xylem?
A) Transporting water
B) Supporting plant structure
C) Transporting sugars
D) Conducting water from roots to leaves [a] Transporting sugars [q] What role does guard cells play in plant transport?
A) They transport minerals to roots
B) They regulate gas exchange
C) They store food
D) They absorb water from soil [a] They regulate gas exchange [q] Which substance is primarily responsible for the cohesion of water molecules in plants?
A) Hydrogen bonds
B) Ionic bonds
C) Covalent bonds
D) Van der Waals forces [a] Hydrogen bonds [q] What is the term used for the movement of nutrients from source to sink in plants?
A) Diffusion
B) Translocation
C) Osmosis
D) Evaporation [a] Translocation [q] What is the main function of root hairs in plants?
A) Absorption of light
B) Anchoring the plant
C) Absorption of water and nutrients
D) Gas exchange [a] Absorption of water and nutrients [x]Click here to explore more flashcards: Biology Flashcards [restart] [/qdeck]
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