Calculate the number of stomata per mm2
Webnumber of stomata visible at ⋅100 magnification mean number of stomata number of stomata per mm2 sun leaves 21 24 36 24 15 18 27 33 18 24 24± 6 120 shade leaves 36 39 35 42 28 36 34 40 48 32 37± 6 Calculate the mean number of stomata per mm2for the shade leaves. Show your working below and write your answer in Table 1.1. [2] … WebMethod 1. Put a small drop of water on a microscope slide. Hold the leaf with the surface you want to examine uppermost. Tear the leaf at an angle so as to reveal part of the epidermis. Place the leaf on the microscope slide and examine.
Calculate the number of stomata per mm2
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Web1) Sunken stomata so: decrease in water potential gradient. 2)Thick cuticle so: slower (rate of) diffusion. Species C has a high number of stomata per mm2. Despite this it loses a small amount of water. Use the data to explain why. [1] Small leaves / surface area so (total) number of stomata is low. WebFeb 5, 2024 · Part 1: The number of stomata per mm^2 is 200 mm^2. Part 2: The disadvantage of this seemingly large surface area is that the leaf tends to loss more …
http://nickrath.weebly.com/uploads/6/5/4/1/6541061/counting_leaf_stomata_lab.pdf WebGiven the number of stomata in the field of view = 49 Here, we are asked to determine the number of stomata in a quarter of the area of the field of view. We do this by determining the area of the circle, which is the entire …
WebFirst, count and record the number of stomata in the field of view. If 50% or more of an individual stoma is in the field of view, count it; if less than 50% of an individual stoma is … Web(d) The plants grown at higher temperatures had a lower number of stomata per mm2. This would be an advantage to the plant because the transpiration rate increases as the temperature increases. Explain why the transpiration rate increases when the temperature increases. 1. Molecules have more kinetic energy; Accept KE 2.
Web8. Count all the stomata in one microscopic field. Record the number on your data table. 9. Repeat counts for at least three other distinct microscopic fields. Record all the counts. Determine an average number per microscopic field. 10. From the average number/400X microscopic field, calculate the stomata per mm2 by multiplying by 8. 11.
WebCalculate the number of stomata per 1 mm2. This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. See … free things to do in liverpool for childrenWebCalculate how many times greater the mean growth rate per day was using 37.5g pot nitrate than using 37.5g ammonium sulphate. Assume the mean biomass of the spinach plants at the start of the investigation was 0.5g per pot. ... calculate the number of cells in the culture after 24 hours. Give you answer in standard form. (2)!!! farshid tighehsazWebJun 20, 2024 · Centre Number Candidate Number Write your name here Surname Other names Total Marks Paper Reference ... 6 A student investigated the effect of light intensity on the development of stomata in coffee plant leaves. ... Calculate the number of stomata per mm2 on the leaf surface. The area of a circle is πr2, where π is 3.142. (2) farshid vahdany irandoustWebAlternatively, consider the evidence in another w a y . T h e radiation outside the water-filter (0.3 X > 1 y plus 1 X > 3 ¡JL) is 185 per cent of that under the water-filter (0.3 X > 1 ¡JL). This extra 85 per cent (1 X > 3 y.) gives, in plants grown at the highest nitrogen level, a 70 per cent increase in seedling weight. T h e superficial ... free things to do in little rock ar with kidsWeba scientist wanted to calculate the mean volume of a spore, describe how this can be done and you may assume the spores are spherical. 1. Measure diameter of large number of spores; 2. Dividemeasuredvaluesby700 (tofindtrue diameter); 3. Correct reference to 43 πr3 as volume of sphere farshineWebThe average number of stomata is about 300 per square mm of the leaf surface. Also, refer to Distribution of Stomata in the Lower and Upper Surfaces of the Leaves. The table given below explains the total number … farshine trading co. limitedWeb(b) (i) Calculate the number of stomata per mm2 of this leaf surface. per mm2 [2 marks] (b)(ii) A different plant species has 400 stomata per mm2 of leaf surface. Having a large … free things to do in liverpool at night