The figure represents two guard cells, with surrounding epidermal cells, in the leaf of a plant. The plant is in bright light. The arrows on the diagram indicate the direction of the net movement of water from the epidermal cells into the guard cells.In this situationAthe stomatal pore will decrease in diameter.Bphotosynthesis will decrease in the guard cells.Cthe rate of water movement in the vascular tissue of the plant will decrease.Dthe concentration of solutes within the guard cells is greater than in the surrounding epidermal cells.

All of the following are the features of guard cells except These are the only epidermal cells that contain chloroplastsGuard cells can undergo rapid turgor changesThe opening and closing of the stomatal pore is a function of guard cellsTheir outer and lateral walls are comparatively thicker than inner wall

Which of the following is a function of the upper epidermal tissue in plants?To carry out photosynthesisTo absorb oxygenTo absorb waterTo reduce water loss2In which plant cells would you expect to find the highest concentration of chloroplasts?Epidermal cellsRoot hair cellsPalisade mesophyllSpongy mesophyll3Why are spongy mesophyll cells surrounded by air pockets?To help the leaf remain uprightTo aid the diffusion of gasesTo protect the leafTo store water4Translocation is the movement of:Water around the plant through the phloem tissueDissolved sugars around the plant through the xylem tissueDissolved sugars around the plant through the phloem tissueWater around the plant through the xylem tissue5What does xylem transport around the plant?Water and minerals OxygenGlucoseCarbon dioxide

Tiny pores are found on the surface of the leaves of plants. These pores are calledstomata. These stomata surrounded by the kidney shaped guard cells provide manyvital functions to the plants.Which of the following functions is not served by the stomata for the plants?(A) Exchange of gases, particularly CO2 and O2, with atmosphere(B) Loss of water in the form of vapours during transpiration(C) Helps to create pressure for the water to rise upward, by its process oftranspiration.

Part A. These stomata are located in the lower epidermis of two leaves. What can be concluded by comparing image X to image Y?Select one:a.X is in a leaf releasing water or oxygen. Y is in a leaf during the night.b.X is in a leaf with a waxy cuticle to prevent overheating. Y is in a leaf that needs to protect its cells from freezing temperatures.c.X is in a leaf of a plant during a drought. Y is in a leaf facilitating photosynthesis.d.X is in a leaf that needs to release excess sugars. Y is in a leaf that needs to take in carbon dioxide.QUESTION 6Question textPart B. What evidence supports your answer to Part A? [B.2H]Select one:a.Stomata open when they have made too much sugar. They close when they have enough carbon dioxide inside the leaves.b.When stomata are open, water vapor and other gases are released into the atmosphere. They close at night when photosynthesis doesn't occur.c.Stomata open to take in more water when the environment is dry. They close to enable photosynthesis to occur.d.When plants get hot, stomata open to release heat. They close to hold present cold air from entering.

Which of the following functions reduces the water loss through the epidermis of aerial parts of the plant?Closing of stomataOpening of stomataClosing of lenticelsOpening of lenticels