The clinging of xylem sap to the xylem walls to prevent the sap from moving downward is due to Select one: O a. transpiration. O b. adhesion. O c. concentration gradient. O d. cohesion.

Q: Thigmotropism is a plant response toa. light. b. cold.c. touch. d. gravity. e. drought.

A: Answer is c.) touch.

Q: Which of the following is an example of secondary growth? a. increase in length b. increase in…

A: Secondary growth is the growth of the plants mainly caused due to rapid cell division in the cambia…

Q: tomatal opening is induced by… Select one: a. high CO2 levels in the leaf. b. abscisic acid…

A: The stomatal opening is induced by the striking of blue light on the stomatal pore. The photons…

Q: The opening in the leaf that allows gas and water exchange iscalled thea. lenticel.b. hole.c.…

A: Transpiration is evaporation of excess water from plants through its aerial parts like stem, leaves,…

Q: Between the bark and the wood in a woody stem, there is a layer ofmeristem calleda. cork cambium.b.…

A: Plants have various kinds of specialized tissue that perform specific functions. All these tissues…

Q: Guard cellsa. are found primarily on the upper surface of leaves.b. open their stomata by…

A: A specialized pair of plant cells that are responsible for the control of gaseous exchange in the…

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 region of active cell division where primary growth occurs is the a. internode.b. apical…

A: Plant anatomy deals with the study of internal structure of various organs of plants. Anatomical…

Q: In a root tip, the elongation zone has the function of: O a. Pushing the root down into the soil. O…

A: Roots are nongreen, underground and cylindrical structure of a plant that form a descending axis for…

Q: You were comparing two plants Aand B: plant A has hyphal association in its roots and plant B lacks…

A: Need to find the best option among the following options. Plant A has hyphal association with it's…

Q: Root pressure moves water up the stem: a. Pumps are found along the length of the xylem vessels. O…

A: Plant growth is often hampered by a lack of water. As a result, plants have evolved an efficient…

Q: According to the pressure-flow model, sugar is actively transported into phloem anda. enters xylem,…

A: Answer is d.)  water follows by osmosis, providing pressure that moves the water and sugar through…

Q: Guttation in plants is due to condensation of water vapor and occurs through the hydathodes. D.…

A: Guttation is a process by which plants release excess water through their leaf pores (called…

Q: Radical vascular bundles are those in which: A. xylem is surrounded by phloem B. phloem is…

A: Vascular bundles are responsible for the transport of water and photosynthates in the vascular…

Q: The vascular cambium of roots produces secondary xylem toward the (inside, outside) and secondary…

A: Vascular cambium  It is defined as the main growth tissue in the stems and roots of dicot plants…

Q: The cork cambium: O a. Is a thick protective layer. Ob. Forms a layer around the xylem. Oc…

A: Vascular plants are plants with specialized vascular tissue. There are two kinds of vascular tissue…

Q: which of the following concernig roost is incorrect? a. monocot roots exhibit primary grwoth and…

A: Introduction The root system is the plant axis's descending (developing downwards) part. When a seed…

Q: Leaf tissue with sunken stomata will have ___ humidity near the stomata and ___ transpiration.…

A: Stomata  It refers to the pore located in the epidermis of leaves, stems, and other organs, that is…

Q: Which of the following statements is inaccurate?a. Water that evaporates from leaves is ultimately…

A: The vascular tissue of plants is made primarily from specialized cylindrical or elongated cells;…

Q: In roots, growth of lateral branches beginsa. on the root epidermis.b. on the root hairs.c. at the…

A: Root epidermis: provides protection and helps in absorption. Root hairs are extension of root…

Q: In response to high light intensity, which of the following is most likely expected in a shade plant…

A: Phototropism is a phenomena in which the direction of a light source affects the direction in which…

Q: These are pores in plant cell membranes that allow for a shared cytoplasm between cells Select one:…

A: Cell membrane or plasma membrane is present in both eukaryotic and prokaryotic cells. Plasma…

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

A: Plants have specialized tissue for the conduction of water, minerals, and food. The tissues involved…

Q: which of the following phytochemicals are considerd to provider vascular support? a. flavonoids and…

A: Phytochemicals are biologically active compounds, which are derived from plant products. These…

Q: When comparing vessel elements with sieve tube elements, only vessel elements.   Select one: a.…

A: Vascular bundle of plants :- It is a part of the transport system in vascular plants. The transport…

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: Stomata are usually opena. at night, when the plant requires a supply of oxygen.b. during the day,…

A: Option(a) is incorrect because plants depend on the availability of carbon dioxide and not oxygen.

Q: .tissues have cytoplasm lining. O a. Aerenchyma O b. Xylem O c. Phloem O d. Parenchyma

A: A very thin membrane, composed of lipids and protein, that surrounds the cytoplasm of a cell and…

Q: Plant bends towards the source of light on account of the movement of curvature known as: A.…

A: Plants are multicellular organism in the kingdom Plantae. Plants obtain most of their energy from…

Q: Which of the following statements is/are false? A. Water is actively transported from source cells…

A: Statements is /are false -- In plant tissues the transportation of water , nutrients and minerals…

Q: he movement of water out of phloem sap and back into xylem vessels is often associated with which of…

A: C. Active transport of sugar out of phloem sap into the sink.

Q: 1. The distribution of water through the symplast occurs in the cell walls and xylem elements.  C.…

A: When root hairs absorb the water from the soil it can  reach to the deeper  root layers by the two…

Q: The ______ is impermeable to passive water transport, and regulates what enters the xylem. Select…

A: The correct answer is option e. Casparian strip

Q: [PLANT PHYSIOLOGY] When comparing vessel elements with sieve tube elements, only vessel elements.…

A: Complex permanent tissue are composed of two or more type of simple tissue and heterogeneous in…

Q: Unlike the movement of water in the xylem, phloem sap movement is not defined by gravity. It can…

A: During photosynthesis, plants synthesize glucose. This gets transported across the cells in the…

Q: Sugars pass from cell to cell in the leaf starting in the _______ of the mesophyll; they move…

A: Plant physiology is a field of botany deals with the study of the physiology of plants. Plant…

Q: The electrochemical gradient is __________________. A. The total chemical potential gradient B. The…

A: Xylem is the specialised tissue of vascular plants that transports water and nutrients from the…

Q: This is the location of the carbon fixation reactions in C4 plants.      Select one: a.  the…

A: INTRODUCTION C4 plants These are the plants who avoid photorespiration by using phosphoenolpyruvate…

Q: What is wood? a. Primary xylem that has accumulated inside a cylinder of vascular cambium b.…

A: Option C is the correct answer i.e. Secondary xylem that has accumulated inside a cylinder of the…

Q: Phloem tends to flow downward because Select one: O a. the pressure in the leaves is usually lower…

A: a. the pressure in the leaves is usually lower then the pressure in the roots is correct answer.

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: When absorption of water by the roots fails to keep up with the rate of transpiration, gain in…

A: Transpiration and photosynthesis generally happen in day time. Water cycle and food cycle continue…

Q: Which of the following may stimulate the growth of the roots in plant cuttings? Select one: a. The…

A: Plant growth is the irreversible increase in volume and size and the main driver for this type of…

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: [PLANT PHYSIOLOGY] Stomatal opening is induced by. Select one: O a. high CO2 levels in the leaf. Ob.…

A: Stomata open in response to light such as blue and red light. Red light usually induces stomatal…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.