Press "Enter" to skip to content

What are the conditions related to the research of Van Helmont?

Conditions relate to the research of van Helmont are: Plant mass related to H2O and conclusions partly correct.

What evidence did Van Helmont use to say that plants do not get their mass from the soil?

He grew a willow tree in a weighed amount of soil. After five years, he discovered that the willow tree weighed about 74 kg more than it did at the start. As the weight of the soil had hardly changed, van Helmont concluded that plant growth cannot only be due to minerals from the soil.

What was the substance that makes plants gain mass according to Jean Baptiste van Helmont?


What did Van Helmont conclude about plants?

Van Helmont concluded that plants only need water to grow. We now know that plants also need carbon dioxide from the air, but in 1600 no-one had any idea of what air consisted of, let alone any way to measure the weight of gases.

What happened to the light energy after it reached the willow plant?

What happened to the light energy after it reached the willow plant? Write down the specific equation for photosynthesis and relate the equation to this question. The light energy transforms Walter m carbon dioxide into carbohydrates a nutients the plant needs, in releases oxygen.

What was the initial working hypothesis for how plants gained mass?

What was the initial hypothesis for how plants gained mass? That plants grew by “eating” soil through their roots. What were the results of Van Helmont’s experiment in regards to soil and the tree itself? Soil did not decrease in mass as the tree grew.

What is done with the oxygen left as a product of photosynthesis?

Photosynthesis uses energy from light to convert water and carbon dioxide molecules into glucose (sugar molecule) and oxygen (Figure 2). The oxygen is released, or “exhaled”, from leaves while the energy contained within glucose molecules is used throughout the plant for growth, flower formation, and fruit development.

What happens to the rate of photosynthesis as temperature decreases?

Temperature. As with any other enzyme-controlled reaction, the rate of photosynthesis is affected by temperature. At low temperatures, the rate of photosynthesis is limited by the number of molecular collisions between enzymes and substrates. At high temperatures, enzymes are denatured .

Does it need to be warm for photosynthesis to take place quickly?

Photosynthesis can take place slowly or quickly. It depends on the temperature of the air. Photosynthesis takes place more quickly when it is warm.

What 2 things does photosynthesis create?

During the process of photosynthesis plants break apart the reactants of carbon dioxide and water and recombine them to produce oxygen (O2) and a form of sugar called glucose (C6H12O6).

Is it true that photosynthesis makes chlorophyll?

Chlorophyll, the primary pigment used in photosynthesis, reflects green light and absorbs red and blue light most strongly. In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. These other pigments may help channel light energy to chlorophyll A or protect the cell from photo-damage.

How does temperature affect oxygen production in plants?

The greater the light intensity is, the oxygen production is also greater. The oxygen production begins to decrease at a light intensity of 37%. Temperatures between 17 and 31 degrees do not have an affect on oxygen production. When the temperature exceeds 31 degrees the production of oxygen decreases.

How does temperature affect cellular respiration in peas?

The effect of temperature on the rate of cell respiration in the peas is that the higher the temperature, the higher the rate of cell respiration because the cool water causes the enzymes to slow down, causing the reactions of cellular respiration to slow down, and therefore the rate of respiration to be slower.

What organ of the body produces the most heat?


Is heat a byproduct of cellular respiration?

In most eukaryotic organisms, cellular respiration takes place in the mitochondria of cells. During cellular respiration, some energy is stored in ATP and some is released as heat.

What body system helps humans obtain the food they need for cellular respiration?

circulatory system

What do we need for cellular respiration to occur?

Cellular respiration can occur both aerobically (using oxygen), or anaerobically (without oxygen). During aerobic cellular respiration, glucose reacts with oxygen, forming ATP that can be used by the cell. Carbon dioxide and water are created as byproducts. In cellular respiration, glucose and oxygen react to form ATP.