Transport in plants Flashcards
What is osmosis?
The movement of water molecules from an area of high water concentration to an area of low water concentration through a semi-permeable membrane.
True or False: Diffusion requires energy.
False
Fill in the blank: The process by which nutrients and water are absorbed by plant roots is known as __________.
absorption
What is diffusion?
The movement of particles from an area of high concentration to an area of low concentration.
Which part of the plant is primarily responsible for water absorption?
Roots
Multiple Choice: Which of the following is NOT a factor affecting the rate of diffusion? A) Temperature B) Concentration Gradient C) Size of the particles D) Color of the particles
D) Color of the particles
What is the role of xylem in plants?
To transport water and dissolved minerals from the roots to the rest of the plant.
True or False: Phloem transports sugars and nutrients throughout the plant.
True
What adaptation do root hairs provide to plants?
Increased surface area for more efficient water and nutrient absorption.
Fill in the blank: The movement of water vapour from the stomata of leaves is called __________.
transpiration
What is the function of the stomata?
To regulate gas exchange and water loss in plants.
Multiple Choice: Which process helps in cooling the plant? A) Osmosis B) Transpiration C) Photosynthesis D) Respiration
B) Transpiration
How do plants adapt to dry environments?
They may have thicker cuticles, deeper roots, or reduced leaf surface area to minimize water loss.
True or False: Active transport is the movement of substances against a concentration gradient.
True
What is the primary function of guard cells?
To control the opening and closing of stomata.
Fill in the blank: The process by which plants lose water vapor is called __________.
transpiration
What is turgor pressure?
The pressure of water inside the central vacuole of a plant cell that helps maintain its shape.
Multiple Choice: Which of the following is a characteristic of diffusion? A) Requires energy B) Moves against the concentration gradient C) Moves down the concentration gradient D) Only occurs in liquids
C) Moves down the concentration gradient
What is one way that leaves are adapted for photosynthesis?
Leaves are broad and flat to increase surface area for light absorption.
True or False: Water is a product of photosynthesis.
False
What roles do minerals play in plant transport?
Minerals are essential for growth and are transported via xylem along with water.
Fill in the blank: The process by which water moves from the soil into the plant roots is called __________.
osmosis
What effect does high humidity have on transpiration rates?
High humidity decreases the rate of transpiration.
Multiple Choice: Which structure is involved in the transport of sugars in plants? A) Xylem B) Phloem C) Stomata D) Cuticle
B) Phloem
