Mega+List+of+Biology+Experiments

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Experimental work in biology: Biology experiments to download
|| Beneath the description of each experiment you will find links from which you can open or download the experiments in Word format, and a link from which you can download the group of documents in a zip file. If you do not have Microsoft Word installed you can download Word Viewer free [|here]. If you do not have WinZip installed you can download a free trial [|here]. To download whole sets of experiments in zip files see the links to the right.See also: [|Supplementary experiments] [|Introduction] || Bulk Downloads * [|Diffusion] 6.2MB ||
 * Index * [|Diffusion]
 * [|Enzymes]
 * [tests|Food tests]
 * [|Osmosis]
 * [|Photosynthesis]
 * [|Respiration]
 * [|Human senses]
 * [|Transport in plants]
 * [|Germination & tropisms]
 * [|Enzymes] 1.3MB
 * [|Food tests] 452KB
 * [|Osmosis] 9MB
 * [|Photosynthesis] 3.2MB
 * [|Respiration] 9.1MB
 * [|Human senses] 2.5MB
 * [|Transport in plants] 2.3MB
 * [|Germination & tropisms] 3 MB


 * ====Food tests====

Reagent for food tests and enzymes
[|Reagent for food tests and enzymes]

1 Test for starch
Using iodine solution [|1. Test for starch]

2 Test for glucose
Using Benedict’s reagent [|2. Test for glucose]

3 Test for protein
The biuret reaction [|3. Test for protein]

4 Test for lipid
The emulsion test [|4. Test for fats]

5 How sensitive is the starch test?
A serial dilution of starch solution is tested with iodine [|5.01 How sensitive is the iodine test?][|5.02 Discussion][|5.03 Discussion - answers][|5.04 How sensitive is the iodine test? - preparation]//[|All zipped]//

6 Testing food for starch
Samples of different foods are tested with iodine solution [|6.01 Testing food for starch][|6.02 Discussion][|6.03 Discussion - answers][|6.04 Testing food for starch - preparation]//[|All zipped]//

7 A comparison of vitamin C content
The volumes of fruit juices needed to decolourise DCPIP are measured [|7.01 Comparison of vitamin C content][|7.02 Discussion][|7.03 Discussion - answers][|7.04 Comparison of vitamin content - preparation]//[|All zipped]// [|Back to top]

====Enzymes====

Reagent for food tests and enzymes
[|Reagent for food tests and enzymes]

1 Effect of amylase on starch
Disappearance of blue colour from starch solution plus iodine [|1.01 Effect of amylase on starch][|1.02 Discussion][|1.03 Discussion - answers][|1.04 Effect of amylase on starch - preparation]//[|All zipped]//

2 Effect of temperature
Timing the disappearance of the blue colour at different temperatures [|2.01 Effect of temperature][|2.02 Discussion][|2.03 Discussion - answers][|2.04 Effect of temperature - preparation]//[|All zipped]//

3 Effect of pH
Timing the disappearance of blue colour at different pH values [|3.01 Effect of pH][|3.02 Discussion][|3.03 Discussion - answers][|3.04 Effect of pH - preparation]//[|All zipped]//

4 Catalase
Liver and yeast are used to decompose hydrogen peroxide [|4.01 Catalase][|4.02 Discussion][|4.03 Catalase - preparation]//[|All zipped]//

5 Effect of enzyme concentration
Increasing strengths of urease are used to produce ammonia from urea [|5.01 Effect of enzyme concentration][|5.02 Discussion][|5.03 Discussion - answers][|5.04 Effect of enzyme concentration - preparation]//[|All zipped]//

6 Enzymes in maize fruits
Maize fruits are sectioned and placed on starch-agar. Iodine solution reveals clear areas of starch-agar under the fruit [|6.01 Starch-digesting enzymes in maize][|6.02 Discussion][|6.03 Discussion - answers][|6.04 Enzymes in maize fruits - preparation]//[|All zipped]// [|Back to top]

====Respiration====

1 Oxygen uptake
The inability of air from germinating seeds to support combustion [|1.01 Oxygen uptake][|1.02 Discussion][|1.03 Discussion - answers][|1.04 Oxygen uptake - preparation]//[|All zipped]//

2 Carbon dioxide output
The gas from germinating seeds turns limewater milky [|2.01 Carbon dioxide output][|2.02 Discussion][|2.03 Discussion - answers][|2.04 Carbon dioxideoutput - preparation]//[|All zipped]//

3 Exhaled air (1)
The last fraction of exhaled air will not support combustion [|3.01 Exhaled air (1)][|3.02 Discussion][|3.03 Discussion - answers][|3.04 Exhaled air (1) - preparation]//[|All zipped]//

4 Exhaled air (2)
Atmospheric air and exhaled air are bubbled simultaneously through limewater [|4.01 Exhaled air (2)][|4.02 Discussion][|4.03 Discussion - answers][|4.04 Exhaled air (2) - preparation]//[|All zipped]//

5 Respiration in living organisms
A manometer reveals uptake of oxygen by germinating seeds [|Introduction to experiments on respiration] [|5.01 Respiration in living organisms][|5.02 Discussion][|5.03 Discussion - answers][|5.04 Respiration in living organisms - preparation]//[|All zipped]//

6 Anaerobic respiration
The gas produced by a yeast suspension from which air is excluded turns limewater milky [|6.01 Anaerobic respiration][|6.02 Discussion][|6.03 Discussion - answers][|6.04 Anaerobic respiration - preparation]//[|All zipped]//

7 Energy release during respiration
Germinating wheat is packed into vacuum flasks to see if there is any rise in temperature over a few days [|7.01 Energy release in respiration][|7.02 Discussion][|7.03 Discussion - answers][|7.04 Energy release in respiration - preparation]//[|All zipped]//

8 Changes in mass during germination
Wheat is germinated for about two weeks. Samples are taken at 2-day intervals, dried and weighed [|8.01 Changes in mass during germination][|8.02 Changes in mass during germination - preparation][|8.03 Discussion - answers]//[|All zipped]//

9 Measuring the uptake of oxygen
The respirometer is used to measure the uptake of oxygen in living organisms [|9.01 Measuring the uptake of oxygen][|9.02 Discussion][|9.03 Discussion - answers][|9.04 Measuring the uptake of oxygen - preparation]//[|All zipped]//

10 Temperature effect on respiration
The oxygen uptake of living organisms at different temperatures is measured with the respirometer [|10.01 Temperature effect on respiration][|10.02 Discussion][|10.03 Discussion - answers][|10.04 Temperature effect on respiration - preparation]//[|All zipped]//

11 Oxygen uptake in blowfly larvae
The oxygen uptake of blowfly larvae is measured over a 20 minute period. The air in the respirometer is then renewed and the rate of oxygen uptake compared [|11.01 Oxygen uptake in blowfly larvae][|11.02 Discussion][|11.03 Discussion - answers][|11.04 Oxygen uptake in blowfly larvae - preparation]//[|All zipped]//

12 The effect of temperature on fermentation rate
The respirometer is used to measure the rate of carbon dioxide production from a suspension of yeast in glucose solution at different temperatures [|12.01 Temperature and fermentation rate][|12.02 Discussion][|12.03 Discussion - answers][|12.04 Temperature and fermentation rate - preparation]//[|All zipped]// [|Back to top]

====Photosynthesis====

1 Production of gas by pondweed
Bubbles escape from the cut stems of Canadian pondweed when illuminated [|Introduction][|1.01 Production of gas by pondweed][|1.02 Discussion][|1.03 Discussion - answers][|1.04 Production of gas by pondweed - preparation]//[|All zipped]//

2 Testing a leaf for starch
The technique of killing and decolourising a leaf and testing it with iodine solution [|2.01 Testing a leaf for starch][|2.02 Discussion][|2.03 Discussion - answers][|2.04 Testing a leaf for starch - preparation]//[|All zipped]//

3 The need for light
Light is excluded from part of a leaf which is tested for starch after a period of illumination [|3.01 The need for light /Discussion][|3.02 Discussion - answers][|3.03 The need for light - preparation]//[|All zipped]//

4 The need for chlorophyll
A variegated leaf is tested for starch after a period of illumination [|4.01 The need for chlorophyll/ Discussion][|4.02 Discussion - answers][|4.03 The need for chlorophyll - preparation]//[|All zipped]//

5 The need for carbon dioxide
A potted plant is enclosed in a plastic bag from which carbon dioxide has been absorbed.one of its leaves is tested for starch after a period of illumination [|5.01 The need for carbon dioxide][|5.02 Discussion][|5.03 Discussion - answers][|5.04 the need for carbon dioxide - preparation]//[|All zipped]//

6 Collecting the gas from pondweed
The cut end of a Canadian pondweed shoot is placed in a water-filled test tube. The gas is collected and tested for oxygen [|6.01 Collecting the gas from pondweed][|6.02 Discussion][|6.03 Discussion - answers][|6.04 Collecting the gas from pondweed - preparation]//[|All zipped]//

7 Gaseous exchange in leaves
Leaves are enclosed in test-tubes containing hydrogencarbonate indicator. The tubes are illuminated or darkened [|7.01 Gaseous exchange in leaves][|7.02 Discussion][|7.03 Discussion - answers][|7.04 Gaseous exchange in leaves - preparation]//[|All zipped]//

8 Gaseous exchange in pond-weed
Leaves are enclosed in test-tubes containing hydrogencarbonate indicator. The tubes are illuminated or darkened [|8.01 Gaseous exchange in pond-weed][|8.02 Discussion][|8.03 Discussion - answers][|8.04 Gaseous exchange in pond-weed - preparation]//[|All zipped]//

9 The need for mineral elements
Wheat seedlings are grown for two weeks in water cultures lacking essential elements [|9.01 The need for mineral elements][|9.02 Discussion][|9.03 Discussion - answers][|9.04 The need for mineral elements - preparation][|9.05 Water cultures]//[|All zipped]// [|Back to top] ====Diffusion====

1 Diffusion in gases
Diffusion of ammonia is observed in a glass tube using litmus paper [|1.01 Diffusion in gases][|1.02 Discussion][|1.03 Discussion - answers][|1.04 Diffusion in gases - preparation]//[|All zipped]//

2 Diffusion in liquid
Diffusion of methylene blue through gelatine is observed [|2.01 Diffusion in liquid][|2.02 Discussion][|2.03 Discussion - answers][|2.04 Diffusion in liquid - preparation]//[|All zipped]//

3 Diffusion and size
Different size blocks of gelatine mixed with cresol red are immersed in acid to see the progress of the acid through the gelatine [|3.01 Diffusion and size][|3.02 Discussion][|3.03 Discussion - answers][|3.04 Diffusion and size - preparation]//[|All zipped]//

4 Diffusion through a membrane
A dialysis tube filled with starch solution is immersed in iodine solution [|4.01 Diffusion through a membrane][|4.02 Discussion][|4.03 Discussion - answers][|4.04 Diffusion through a membrane - preparation]//[|All zipped]//

5 Control of diffusion
Beetroot discs are heated at increasing temperatures to illustrate the control on diffusion by the cell membrane [|5.01 Control of diffusion][|5.02 Discussion][|5.03 Discussion - answers][|5.04 Control of diffusion - preparation]//[|All zipped]//

6 Two-way diffusion
Ammonia diffuses into gelatine coloured with cresol red which diffuses in the opposite direction [|6.01 Two-way diffusion in a liquid][|6.02 Discussion][|6.03 Discussion - answers][|6.04 Two-way diffusion - preparation]//[|All zipped]// [|Back to top]

====Osmosis====

1 Osmosis
An osmometer made from dialysis tubing and a capillary tube shows osmosis happening [|1.01 Osmosis][|1.02 Discussion][|1.03 Discussion - answers][|1.04 Osmosis - preparation]//[|All zipped]//

2 Selective permeability
Dialysis tubing containing starch and glucose solutions is immersed in water [|2.01 Selective permeability][|2.02 Discussion][|2.03 Discussion - answers][|2.04 Selective permeability - preparatio]n//[|All zipped]//

3 Turgor
A length of dialysis tube is partly filled with a syrup solution and immersed in water [|3.01 Turgor][|3.02 Discussion][|3.03 Discussion - answers][|3.04 Turgor - preparation]//[|All zipped]//

4 Turgor in plant tissue
Strips of dandelion stalk are immersed in salt solutions of differing strength and changes in curvature observed [|4.01 Turgor in a dandelion stalk][|4.02 Discussion][|4.03 Discussion - answers][|4.04 Turgor in a dandelion stalk - preparation]//[|All zipped]//

5 Turgor in potato tissue
Cylinders of potato tissue are immersed in solutions of differing strength and changes in length are measured [|5.01 Turgor in potato tissue][|5.02 Discussion][|5.03 Discussion - answers][|5.04 Turgor in potato tissue - preparation]//[|All zipped]//

6 Root pressure
Glass tubes are fitted to the cut branches of a potted plant. The levels of liquid in each tube are observed [|6.01 Root pressure][|6.02 Root pressure - preparation]//[|All zipped]//

7 Stomatal movements
Leaf epidermis is irrigated with salt solution to see its effect on guard cells [|7.01 Stomatal movements][|7.02 Discussion][|7.03 Discussion - answers][|7.04 Stomatal movements - preparation]//[|All zipped]//

8 Plasmolysis
Red epidermis from rhubarb petiole is irrigated with sucrose solution and observed under the microscope [|8.01 Plasmolysis][|8.02 Discussion][|8.03 Discussion - answers][|8.04 Plasmolysis - preparation]//[|All zipped]//

9 Surface area and osmosis
Potato cubes with equal volume but different surface area are immersed in water and weighed [|8.01 Surface area and osmosis][|8.02 Discussion][|8.03 Discussion - answers][|8.04 Surface area and osmosis - preparation]//[|All zipped]// [|Back to top] || ====Human senses====

1 Reaction time
The distance a vertical ruler falls before being gripped is converted to a time interval [|1.01 Reaction time][|1.02 Discussion][|1.03 Discussion - answers][|1.04 Reaction time - preparation]//[|All zipped]//

2a The blind spot (1)
A dot seems to disappear when its image falls on the blind spot

2b The blind spot (2)
A gap in a line is 'filled in' when its image falls on the blind spot [|2.01 The blind spot (a) & (b)][|2.02 Discussion - answers]//[|All zipped]//

3 Inversion of the image
When a pin is viewed via a pinhole in front of the pin, its image appears to be inverted [|3.01 Inversion of the image][|3.02 Discussion & preparation]//[|All zipped]//

4a The iris diaphragm (1)
The iris is observed to reduce the size of the pupil when the eye is exposed to light

4b The iris diaphragm (2)
(Broca's pupillometer) A pattern of pinholes appears to change when one eye is exposed to light [|4.01 Iris diaphragm (1) & (2)][|4.02 Discussion - answers & preparation][|4.03 Ray diagram for pupillometer]//[|All zipped]//

5 Retinal capillaries
By moving a pinhole about in front of the eye, an image of retinal capillaries appears [|5.01 Retinal capillaries][|5.02 Discussion - answers & preparation]//[|All zipped]//

6a Binocular vision: eye dominance
A pencil lined up with a window frame appears to 'jump' when the dominant eye is closed

6b Binocular vision: double vision
Slight pressure on one eyeball causes a single object to appear as a double image [|6.01 Binocular vision (a) and (b)][|6.02 Discussion - answers]//[|All zipped]//

7 Judgement of distance
The space sequence of coloured pinheads is judged using either one or both eyes [|7.01 Judgement of distance][|7.02 Discussion & preparation]//[|All zipped]//

8 Eye and hand co-ordination
A star pattern is traced while looking in a mirror [|8.01 Eye and hand co-ordination][|8.02 Discussion][|8.03 Discussion - answers][|8.04 Eye and hand co-ordination - preparation]//[|All zipped]//

9 Perception
Two shapes are observed, and demonstrate that the brain makes an interpretation of the image [|9.01 Perception]

10 Sensitivity of the skin to touch
Different areas of skin are tested with light touch to see if there are differences in reponse [|10.01 Sensitivity of the skin to touch][|10.02 Discussion][|10.03 Discussion - answers][|10.04 Sensitivity to touch - preparation]//[|All zipped]//

11 Recognition of separate stimuli
(Spatial discrimination) Different areas of skin are tested with a 'hairpin' to see if they can discriminate a double touch from a single touch [|11.01 Recognition of separate stimuli][|11.02 Discussion][|11.03 Discussion - answers][|11.04 Recognition of stimuli - preparation]//[|All zipped]//

12 Sensitivity to temperature
One finger is placed in hot water and another in cold water. Both are then placed in warm water and the sensations compared [|12.01 Sensitivity to temperature][|12.02 Discussion and preparation]//[|All zipped]//

13 Location of stimuli
A marble is rolled between crossed fingers to give the sensation of two marbles [|13.01 Location of stimuli][|13.02 Discussion - answers & preparation]//[|All zipped]// [|Back to top] ====Transport in plants====

1 Uptake and evaporation in leaves
The uptake of water by single leaves is measured after coating either, neither or both surfaces with Vaseline [|1.01 Uptake and evaporation in leaves][|1.02 Discussion][|1.03 Discussion - answers][|1.04 Uptake and evaporation in leaves - preparation]//[|All zipped]//

2 Uptake of water by shoots
The uptake of water by a shoot is measured, using a potometer [|2.01 Uptake of water by shoots][|2.02 Discussion][|2.03 Discussion - answers][|2.04 Uptake of water by shoots - preparation]//[|All zipped]//

3 Rates of transpiration
The potometer is used in different conditions to compare rates of uptake by the shoot [|3.01 Rates of transpiration][|3.02 Discussion][|3.03 Discussion - answers][|3.04 Rates of transpiration - preparation]//[|All zipped]//

4 Rate of transpiration and water uptake
By weighing the shoot and potometer, the uptake and loss of water are compared [|4.01 Rate of transpiration and water uptake][|4.02 Discussion][|4.03 Discussion - answers][|4.04 Rate of transpiration and water uptake - preparation]//[|All zipped]//

5 Uptake of water by an uprooted plant
The potometer is modified to accept a whole plant rather than a cut shoot [|5.01 Uptake of water by an uprooted plant][|5.02 Discussion][|5.03 Discussion - answers][|5.04 Uptake of water by an uprooted plant - preparation]//[|All zipped]//

6 Conditions affecting evaporation
A simple atmometer is used to investigate the effects of different atmospheric conditions on the rate of evaporation [|6.01 Conditions affecting evaporation][|6.02 Discussion][|6.03 Discussion - answers][|6.04 Conditions affecting evaporation - preparation]//[|All zipped]//

7 Water tension in the stem
The lower end of the potometer is placed in mercury, which is pulled up the capillary by the transpiration force [|7.01 Water tension in the stem][|7.02 Water tension in the stem - preparation]//[|All zipped]//

8 Pathways for gases in a leaf
A leaf is immersed in hot water to expand and force out any air inside it [|8.01 Pathways for gases in a leaf][|8.02 Pathways for gases in a leaf - preparation]//[|All zipped]//

9 Evaporation from the leaf surface
Evaporation from the upper and lower leaf surface is compared and correlated with the distribution of stomata [|9.01 Evaporation from the leaf surface][|9.02 Discussion][|9.03 Discussion - answers][|9.04 Evaporation from the leaf surface - preparation]//[|All zipped]//

10 To collect and identify the product of transpiration
The shoot of a plant is enclosed in a plastic bag. The liquid which condenses is identified [|10.01 To collect and identify the product of transpiration][|10.02 To collect and identify the product of transpiration - preparation]//[|All zipped]//

11 To trace the path of water through a shoot
Shoots are placed in a dye in order to investigate the route it takes through the stem and leaves [|11.01 To trace the pathway of water through a shoot][|11.02 To trace the pathway of water through a shoot - preparation]//[|All zipped]//

12 Conducting pathways through the shoot
A syringe is used to force air through a shoot held under water, Air bubbles show the continuity of the vessels [|12.01 Conducting pathways in the shoot][|12.02 Discussion][|12.03 Discussion - answers][|12.04 Conducting pathways in the shoot - preparation]//[|All zipped]//

13 Measuring the transpiration rate of a potted plant
Two potted plants, one in sunlight and one in shadow are weighed at intervals [|13.01 Measuring the transpiration rate of a potted plant][|13.02 Measuring the transpiration rate of a potted plant - preparation]//[|All zipped]//

14 Measuring the transpiration rate of an uprooted plant
Two flasks of water are weighed at intervals. One of them contains a plant [|14.01 Measuring the transpiration rate of an uprooted plant][|14.02 Measuring the transpiration rate of an uprooted plant - preparation]//[|All zipped]// [|Back to top]

Introduction
[|Introduction][|Resources list][|Germination times - peas and wheat][|Germination times - sunflower and maize][|Germination times - French bean]//[|All zipped]//

1 The need for oxygen
Cress seeds are sown on moist cotton wool in 2 flasks one of which contains pyrogallic acid and sodium hydroxide [|1.01 Need for oxygen][|1.02 Discussion][|1.03 Discussion - answers][|1.04 Need for oxygen - preparation]//[|All zipped]//

2 Effect of temperature
Maize fruits are germinated in moist blotting paper at different temperatures [|2.01 Effect of temperature][|2.02 Discussion][|2.03 Discussion - answers][|2.04 Effect of temperature - preparation]//[|All zipped]//

3 The need for water
Seeds are left in moist, dry and waterlogged conditions for a week [|3.01 Need for water][|3.02 Discussion answers and preparation]//[|All zipped]//

4 The role of cotyledons
Runner bean embryos attached to varying amounts of cotyledon are germinated on moist blotting paper in jars [|4.01 Role of cotyledons][|4.02 Discussion][|4.03 Discussion - answers][|4.04 Role of cotyledons - preparation]//[|All zipped]//

5 Use of food reserves in germination
Coleoptiles and endosperm of cereal seedlings and grains are tested for starch and sugar [|5.01 Use of food reserves][|5.02 Discussion][|5.03 Discussion - answers][|5.04 Use of food reserves - preparation]//[|All zipped]//

6 Geotropism in radicles
Pea seedlings are pinned to a clinostat, or a stationary base, with their radicles horizontal [|6.01 Geotropism in radicles][|6.02 Discussion][|6.03 Discussion - answers][|6.04 Geotropism in radicles - preparation]//[|All zipped]//

7 The region of growth and response in radicles
Radicles are marked with equidistant lines and left horizontally or vertically for two days [|7.01 Region of growth and response in radicles][|7.02 Discussion][|7.03 Discussion - answers][|7.04 Region of growth and response in radicles - preparation]//[|All zipped]//

8 Region of detection and response to one-sided gravity in radicles
Different lengths of root tip are excised to see if the radicles still grow and respond to gravity [|8.01 Detection of unilateral gravity][|8.02 Discussion][|8.03 Discussion - answers][|8.04 Detection of unilateral gravity - preparation]//[|All zipped]//

9 The effect of one-sided lighting on shoots
Hypocotyls of sunflower seedlings are marked and illuminated from one side [|9.01 One-sided lighting on shoots][|9.02 Discussion][|9.03 Discussion - answers][|9.04 One-sided lighting on shoots - preparation]//[|All zipped]//

10 The effect of one-sided lighting on cress seedlings
Cress seedlings, some of which are decapitated, are illuminated from the side or from above [|10.01 One-sided lighting on cress][|10.02 Discussion][|10.03 Discussion - answers][|10.04 One-sided lighting on cress - preparation]//[|All zipped]//

11 The region of detection and response to one-sided lighting in coleoptiles
Coleoptiles of wheat seedlings, some covered by foil caps, some decapitated, are illuminated from the side [|11.01 Region of detection and response][|11.02 Discussion][|11.03 Discussion - answers][|11.04 Region of detection and response - preparation]//[|All zipped]//

12 Effect of indoleacetic acid on coleoptiles
Indoleacetic acid in lanolin is applied to intact coleoptiles. A control is conducted with plain lanolin [|12.01 Effect of IAA on coleoptiles][|12.02 Discussion][|12.03 Discussion - answers][|12.04 Effect of IAA on coleoptiles - preparation]//[|All zipped]//

13 The effect of indoleacetic acid on wheat coleoptiles
The tips of the coleoptiles of wheat seedlings are removed and IAA in lanolin applied. Controls are conducted with plain lanolin, untreated cut coleoptiles and intact coleoptiles [|13.01 IAA on wheat coleoptiles][|13.02 Discussion][|13.03 Discussion - answers][|13.04 IAA on wheat coleoptiles - preparation]//[|All zipped]//

14 Effect of indoleacetic acid on maize coleoptiles
Indoleacetic acid in lanolin is applied to one side of a maize coleoptile. A control with plain lanolin is included [|14.01 IAA on maize coleoptiles][|14.02 Discussion answers and preparation]//[|All zipped]//

15 The effect of light on shoots
Pea seedlings are grown for a week in light or darkness and their shoots compared [|15.01 Effect of light on shoots][|15.02 Discussion answers and preparation][|15.03 Illustrations]//[|All zipped]//

16 Respiratory activity in maize seedlings
Maize grains and seedlings are immersed in tetrazolium chloride solution for 30 minutes [|16.01 Respiratory activity in maize][|16.02 Discussion answers and preparation]//[|All zipped]// [|Back to top] ||