Climate change due to the increasingly rapid levels of greenhouse gases (particularly CO2) in our atmosphere is a serious current global concern. How might Stomatal density serve as a bio-indicator for monitoring the response of plants to changes in greenhouse gas concentrations in the future? (Hint: How does Stomatal density vary with CO2 concentration?)

Q: The water which is lost through the stomata is replaced by what?

A: Stomatal cells are the tiny opening on the dorsal surface of leaves and stem. Stomata consist of a…

Q: Two plants are in a set-up wherein they are exposed to wind (fan). Plant 1 had a transpiration rate…

A: Transpiration is the loss of water from the stomata of plants.

Q: Stomata are openings on plants that allow for gas exchange.   True   False

A: Stomata are the minute openings present on the surface of the leaves. They are surrounded by two…

Q: Which of the following is a mechanism of water movement in xylem that combines the evaporative pull…

A: Which of the following is a mechanism of water movement in xylem that combines the evaporative pull…

Q: A Vhet do we call the structures found on the root epidermis that increase the plant's capacity…

A: Roots are underground structures of plants. They absorb water and nutrients from the soil.

Q: (b) Describe the role of each component of water potential in regulating the activity of: (i) An…

A: Water potential is a unit used to describe the potential energy of moving water between two systems.…

Q: Which of the following is a mechanism of water movement in xylem that is responsible for guttation?…

A: Xylem can be defined as the complex tissue of plants that is responsible for the mechanism of…

Q: clomate change due to th erapidly increasing levels of greenhouse gases (particularly CO2) in our…

A: Carbon dioxide is a greenhouse gas. Increase in greenhouse gases in the atmosphere is one of the…

Q: Which statement is correct? None of the statements are correct. On a very still (little wind) day,…

A: A microclimate is the climatic condition of a very small and restricted area which basically differs…

Q: Welwitschia is a genus of plant that lives in the Namib andMossamedes Deserts in Africa. Annual…

A: Deserts are the biomes characterized by water scarcity.

Q: (3) a. The characteristics of water molecules to maintain a continuous column of water is : a. Root…

A: Xylem and phloem facilitate the transportation of water, minerals and food throughout the plant.

Q: Explain how the movement of water molecules from inside the roots to the air space around the…

A: The emergent properties or the collective properties are critical attributes of biological systems,…

Q: Based on the cohesion-tension theory, what could be the potential shortfall and how would plant…

A: Cohesion tension theory: Theory was proposed by Dixon and Jolly in 1894. Water molecules have a…

Q: With reference to the geochemical cycles of this ecosystem, what particular is particularly limited…

A: The geochemical cycle is the process that builds a relationship between the geological parts with…

Q: Dr. Asami is investigating the mechanism by which an invasive plant, Uzduk, outcompetes native…

A: Research is an integral part of scientific education. Research comprises of hypothesis, experiment,…

Q: Question 1: What is meant by modification of root? What type of modification of root is found in the…

A: Plants have two types of root systems, the tap root system and the fibrous root system, which are…

Q: Imagine you have a plant with a water potential of -0.1 MPa in the root tissue. What would happen if…

A: Given that the water potential in root is -0.1MPa and it was kept in sucrose solution of 0.1M…

Q: Given that (a) xylem is located toward the upper epidermis in leaf veins and phloem is located…

A: Vascular plants consist of two specialized tissues called xylem and phloem that act as a conducting…

Q: Which is true regarding regulation of stomata?     Light provides a signal leading to the pumping…

A: Stomata are present on the lower surface of dorsiventral leaves of dicot plants. However stomata are…

Q: What is the advantage of closed stomata when water is in short supply?

A: Stomata are the minuscule openings present on the epidermis of leaves. We can see stomata under the…

Q: What role do cohesion and adhesion play in xylem transport?a. Like transpiration, they create a…

A: Introduction  Plants need continuous supply of water and nutrients for their survival and growth.…

Q: Describe how water and minerals move in xylem. Why is water and mineral movement in xylem…

A: Plants are the characteristic autotrophs in the ecosystem having cellulosic cell walls and…

Q: Define the Cohesion-tension model of xylem transport ?

A: Plants have tissues to transport water, supplements and minerals. Xylem transports water and mineral…

Q: Trees literally grow out of thin 1)________ , incorporating 2)__________ from CO2 into glucose. As…

A: Answer:- 1)Air 2)Carbon  3)Photosynthesis  4)Higher

Q: Which of the following parts of a tree are involved in transpiration? Group of answer choices…

A: Stomata, Xylem, Phloem is the correct option. Transpiration Transpiration is also known as…

Q: If abscisic acid (ABA) causes stomatal closure, what is the function of ethylene?

A:

Q: Water ascent up a plant is vital for maintaining proper physiological function of the leaves, (a) is…

A: The ascent of sap in the xylem tissue of plants is the upward movement of water and minerals from…

Q: Primary xylem... RIGHT WRONG 1°) is a tissue only made up of live cells 2°) has a centrifugal…

A: In the plants, the conducting tissue includes vascular tissue. The vascular tissue includes the…

Q: How does nutrient mobility in the soil affect competition between plants for nutrients i.e., is…

A: Nutrients must be available to roots in order to be absorbed. Nutrients occur in many chemical…

Q: Describe the cohesion-tension model of water movement through xylem. Would the weight of water be…

A: The cohesion-tension hypothesis is a theory that is a widely-accepted theory for the movement of…

Q: How do you think the plant Artemisia vulgaris adapts to the sandy soil? Cite the key structural…

A: Evolution is the process by which an organism inherits or adapts favourable characteristics that…

Q: Consider a soil with the following properties: The water content at the permanent wilting point is…

A: So (a) water content at saturation = 38%Hence field capacity of soil = 387.Because field-capacity is…

Q: In a set-up where Plant 1 and Plant 2 are exposed to light, Plant 1 had a transpiration rate of 1.24…

A: Plants exhibit adaptations to their environmental conditions.

Q: Stomata and lenticels are both involved in exchange ofCO2 and O2. Why do stomata need to be able to…

A: The stomata are openings in the epidermis of the leaf that allow exchange of gases. These are also…

Q: Why is the ability of water molecules to form hydrogen bondsimportant for the movement of xylem sap?

A: Introduction  Plants need continuous supply of water and nutrients for their survival and growth.…

Q: High transpiration rates imply bulk flow of water through the xylem which would also be necessary to…

A: Introduction  Plants need continuous supply of water and nutrients for their survival and growth.…

Q: How would you classify each of these interactions for the plant (positive or negative)?  What do…

A: The interaction between and among various organisms is called an ecological relationship. Such…

Q: Describe not just list 4 adaptations that allow plants to cope with these challenges, 2 for coping…

A: The transition of plants from water to land Liverworts are believed to be the first plants that…

Q: 4.

A: Label 1 : This process is Transpiration in which water vapour moves out through pores called stoma…

Q: Chrysanthemums are short-day plants that flower in fall. What cue(s) is important in this process?…

A: Photoperiodism refers to the physiological response of the organisms towards light and dark periods.…

Plant sensory system

The plant sensory system is a sophisticated system that responds to environmental stimuli such as light,temperature, gravity, and touch. Research predicts that plant hormones and signaling mechanisms areresponsible for this regulation system in plants.