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Photosynthesis

This category is for questions about the chemical process in which autotrophic organisms use sunlight, carbon dioxide and water to make glucose, water and oxygen. This process is vital to life and is of great importance in biology.

6,415 Questions

Why do tall plants need to photosynthesize more?

Tall plants need to photosynthesize more because they have a larger surface area for absorbing sunlight and producing energy. With increased height, these plants require more energy to support their growth, metabolism, and reproduction. Photosynthesis is essential for converting sunlight into usable energy in the form of glucose to fuel various plant functions.

Why must the leaf be dipped in boiling water before immersing it in ethanol?

the green pigment, chlorophyll should be removed in order to observe color change during test for starch. in order to do that, the leaf is dipped in boiling water to break cell walls which would facilitate the release of the pigment out of the cell. immersion in ethanol would dissolve the pigment which would be released out of the cells thereby making the leaf appear pale in color.

Which Life function is photosynthesis related?

Photosynthesis is related to the life function of nutrition. It is the process by which plants, algae, and some bacteria convert sunlight into energy by producing glucose from carbon dioxide and water. This provides them with the necessary energy to carry out other life functions.

What is converted to pyruvate in cellular respiration?

Via the enzyme 'pyruvate kinase' , phosphoenolpyruvate is combined with Adp and Pi to {100%} YIELD pyruvate [pyruvic acid] and Atp.

Starting from Glucose, there are at least six separate [because each step "has" its own Enzyme to THOROUGHLY control the yield of the reaction] steps that precede the above.

What is an example of botany?

An example of botany is studying the structure, function, classification, and ecology of plants. This field of science involves researching plant diversity, growth patterns, reproduction, and interactions with their environment. Botanists may also study plant genetics, physiology, and biochemistry to better understand plant biology.

What organisms use cellular respiration to make energy?

Most organisms, including animals, plants, fungi, and bacteria, use cellular respiration to generate energy from their food by converting glucose into ATP (adenosine triphosphate) molecules. This process occurs in the mitochondria of eukaryotic cells and in the cytoplasm of prokaryotic cells.

What exits the leaf during photosynthesis?

Oxygen is given off during photosynthesis.

It is during the aerobic cellular respiration of the leaf cells that carbon dioxide is given off.

What important substance do plats produce during photosynthesis?

Plants produce glucose during photosynthesis, which serves as a source of energy for the plant to carry out its metabolic activities. This glucose can be used immediately for energy or stored as starch for later use.

The flow of what particle across the thylakoid membrane powers the production of ATP?

Protons (H+) flow across the thylakoid membrane during photosynthesis, creating a proton gradient. This gradient is used by ATP synthase to generate ATP from ADP and inorganic phosphate.

What is the first molecule to provide electrons for photosynthesis?

The first molecule to provide electrons for photosynthesis is water. Water is split into oxygen, protons, and electrons during the light-dependent reactions of photosynthesis. These electrons are then used to drive the production of ATP and NADPH, which are needed for the Calvin cycle to convert carbon dioxide into glucose.

What are the functions of the different pigments in the leaf?

Chlorophyll is responsible for photosynthesis, converting light energy into chemical energy. Carotenoids protect chlorophyll from light damage and broaden the spectrum of light that can be captured. Anthocyanins act as antioxidants, protecting the leaf from stress and regulating the plant's response to environmental signals.

What do mammals produce that plants use?

Mammals produce carbon dioxide through respiration, which is used by plants during photosynthesis to produce oxygen and glucose. Additionally, mammals produce waste products such as urine and feces that can serve as organic nutrients for plants.

Does the plant type affect photosynthesis rate?

Yes, different plant types have different photosynthesis rates based on factors like leaf structure, chlorophyll content, and environmental adaptations. Crops and plants like corn and sugarcane tend to have higher photosynthesis rates compared to woody plants like trees.

What gas does grass give off during photosynthesis?

During photosynthesis, grass gives off oxygen gas (O2) as a byproduct. This oxygen is released into the atmosphere as a result of the plant using sunlight to convert carbon dioxide (CO2) and water (H2O) into glucose and oxygen.

Do all producers conduct photosynthesis?

Yes they do. Producers refer to plants, and all plants use photosynthesis.

-Actually the answer is no, some autotrophs (producers) obtain energy by chemosynthesis. These are found deep in water were no light reaches.

How are the two types of mesophyll found in a leaf specialized for photosynthesis?

The two types of photosynthetic mesophyll are --

(i) Palisade cells which are vertically elongated cylindrical cells and

(ii) Spongy mesophyll cells that are spherical green cells.

How is primary productivity limited by water?

Primary productivity can be limited by water availability in terrestrial ecosystems, as water is needed for photosynthesis to occur. In aquatic ecosystems, primary productivity can also be limited by water availability, as light penetration can be reduced in murky waters, limiting the amount of photosynthesis that can take place. Additionally, drought conditions can directly reduce primary productivity in both terrestrial and aquatic ecosystems.

Which substances must a green plant obtain from it's environment to carry on photosynthesis?

A green plant must obtain water, carbon dioxide, and light energy from its environment in order to carry on photosynthesis. Water is absorbed from the soil through the roots, while carbon dioxide is taken in from the surrounding air through small openings in the leaves called stomata. The light energy needed for photosynthesis is absorbed by chlorophyll in the plant's leaves from sunlight.

Why are cellular respiration and photosynthesis called mirror processes?

Because the reactants required for cellular respiration (glucose and oxygen) are the products ofphotosyntheses And the and the products of cellular respiration (carbon dioxide and water) are the reactants of photosynthesis.

Is glucose made during light-dependent or light-independent reactions?

Glucose is made during the light-independent reactions (Calvin cycle) of photosynthesis, where carbon dioxide is converted into glucose using ATP and NADPH produced during the light-dependent reactions.

What other sorts of stress cause p lunula cells to emit light?

Aside from mechanical stress, other types of stress that can cause piezoluminescence in p lunula cells include electrical stress, thermal stress, and chemical stress. These stressors can trigger the release of energy, resulting in light emission from the crystals in the p lunula cells.

What happens when a chloroplast doesn't do its job?

When a chloroplast doesn't do its job, the plant may not be able to photosynthesize properly, leading to a decrease in growth and overall health. This can result in the plant not producing enough food to sustain itself, ultimately impacting its ability to survive.

Name of Organisms that use photosynthesis to produce glucose?

An organism that uses Photosynthesis to produce glucose is called an Autotroph. Autotrophs are also called "self feeders" because they can produce food(glucose) for their own cells, such as plants. (A Heterotroph is an organism that consumes other organisms to get food for their cells, such as humans.)

What is released during photosynthesis when cells take in CO2?

Oxygen is released as a byproduct during photosynthesis when cells take in carbon dioxide. This oxygen is crucial for supporting respiration in living organisms.

What will be the result of photosystem you being exposed to less sunlight?

If photosystem II is exposed to less sunlight, there will be reduced production of ATP and NADPH through photosynthesis. This can lead to a decreased energy supply for the plant to carry out essential metabolic processes and growth.