answersLogoWhite

0

🧪

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

What does chlorophyll do in chloroplast?

Chlorophyll in chloroplasts absorbs light energy during photosynthesis, converting it into chemical energy essential for plant growth and development. It plays a key role in the first stages of photosynthesis by capturing light and transferring that energy to other molecules involved in the process.

What is the difference between photosynthesis I and photosynthesis II?

Photosynthesis II or PS II (photosystem II) comes before PS I. PSII uses a pair of P680 chlorophyll a, while PSI uses a pair of P700 chlorophyll a. These systems populate the thylakoid membrane.

First, light hits PS II and excites its pigment molecules and the energy bounces off the pigment molecules until it gets to the P680 chlorophyll and excites its electrons which then causes it to give off an electron to the Primary electron acceptor.

Now the pair of P680 is deprived of an electron, this is where water comes nto play. An enzyme catalyzes the splitting of water to produce O2 and two electrons, these electrons supply the ones that the pair of P680 chlorophyll gave away, this enables the P680 to be able to get excited again and again without being deprived of electrons.

Back to the primary acceptor, the excited electron passes from PS II to PS I via the Electron Transport chain. This produces ATP.

The electron then is at the P700 pair of chlorophyll a's of PS I which excites it and it gives off that electron to another primary electron acceptor which transports its electrons via ETC as well, but the final electron acceptor is NADP+, which with the electron becomes: NADPH.

What is the word eqaution for photosynthesis?

carbon dioxide+ water + light energy → glucose + oxygen + water.

Describe the appearance of the root hairs?

Root hairs are small, elongated structures that protrude from the outer surface of a root. They are typically colorless and extremely fine, giving them a thread-like appearance. Root hairs play a crucial role in absorbing water and nutrients from the soil.

Study help Photosynthesis and Cellular Respiration Matrix?

Hi,

If you want to learn and study the matrix which is used by Axia, I urge you to study the info listed below.

Glycolysis: Break down of sugar molecules. Where it takes place: Cell cytoplasm Reactants: 6 carbon sugar (or glucose), phosphate, ATP Products: 3 carbon sugar (Pyruvic acid), ATP The role of ATP: Energy used to breakdown Pyruvic acid into Acetyl Co-enzyme A for the Krebs Cycle

Krebs Cycle: Central pathway for cell metabolism (breakdown for food) into energy Where it takes place: Mitochondria Reactants: Oxygen and acetyl Co enzyme A , Products: Carbon dioxide, Water, and 2 ATP (may also include NADH and FADH2) The role of ATP: Energy to drive the electron transport

Electron Transport: Major production of energy in the form of ATP. Where it takes place: Mitochondria Reactants: NADH, FADH2.. Products: 36 ATP. The role of ATP: High production of ATP produces energy for overall cell growth and repair

Light-dependent reaction: Provide energy for the light-independent reaction, Where it takes place: Chloroplasts. Reactants: Sunlight, chlorophyll, and water, Products: Oxygen and ATP. The role of ATP: Powers light-independent reactions

Light-independent reaction: Produces food for cellular respiration. Where it takes place: Chloroplasts. Reactants: ATP, carbon dioxide, and NADPH. Products: Carbohydrates (sugar and starch) The role of ATP Fuels the formation of carbohydrates

Name the person who found out photosynthesis?

Photosynthesis is the process by which plants use sunlight (light energy) to drive a chemical reaction that eventually results in a carbohydrate and some oxygen. Let's look at the term "photosynthesis." The first section, "photo," is the English form of a Greek word meaning light, "phos." "Synthesis" is the creation or generation of a product; in this case, a carbohydrate and oxygen. So, the word photosynthesis means "using light to make something."

Where does the Plant's use of CO2 come from?

Carbon dioxide used in the Calvin cycle comes from the atmosphere. It diffuses into the leaves of the plant through the stomata and enters the intercellular air spaces. From their it diffuses through the cell walls of the mesophyll cells, through the cell membrane and through the cytoplasm, where it enters the chloroplasts. The Calvin cycle takes place in the stroma (matrix) of the chloroplasts. http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/G/GasExchange.html See: http://www.emc.maricopa.edu/faculty/farabee/BIOBK/BioBookPS.html

When 3-PGA is phosphorylated it is reduced by?

When 3-PGA is phosphorylated, it is reduced by NADPH to form glyceraldehyde-3-phosphate (G3P) during the Calvin cycle, a key process in photosynthesis. This reduction step is important for the production of sugars that can be used as energy sources for the plant.

Explain how each activity enhances photosynthesis?

  1. Sunlight exposure: Provides the energy needed to convert carbon dioxide and water into glucose through the process of photosynthesis.
  2. Watering: Ensures the plant has an adequate supply of water for photosynthesis, a key reactant in the process.
  3. Fertilizing: Supplies essential nutrients like nitrogen, phosphorus, and potassium that support the overall health and growth of the plant, aiding in efficient photosynthesis.
  4. Pruning: Removes dead or damaged parts of the plant, allowing for better sunlight exposure and maximizing the plant's ability to conduct photosynthesis.

Where does xylem exist?

Xylem exists in the vascular system of plants, primarily in the roots, stems, and leaves. It is responsible for transporting water and nutrients from the roots to the rest of the plant.

Which organelle in the following list carries out photosynthesis converting light to chemical energy?

Chloroplasts are the organelles that carry out photosynthesis in plant cells, converting light energy into chemical energy in the form of glucose.

What is the Xylem of a root?

the xylem is in the roots and the phloem is in the stem

actually, their is xylem and phloem in the roots. there is a large central core of xylem often in the shape of an x. and the phloem is found in between the arms of the x shaped xylem.

Organisms that makes food by photosynthesis?

Organisms that make food by photosynthesis are plants, algae, and some bacteria. They use sunlight to convert carbon dioxide and water into glucose and oxygen, a process crucial for the Earth's ecosystems. This process is the foundation of the food chain as these organisms provide energy for other living organisms through their food production.

What purpose does chlorophyll serve in the photosynthetic process?

Chlorophyll is a pigment that captures light energy during photosynthesis and converts it into chemical energy, which is used to produce glucose from carbon dioxide and water. It gives plants their green color and is essential for absorbing the sunlight needed for photosynthesis to occur.

The two types of organisms are photosynthetic organisms and chemosynthetic organisms?

Photosynthetic organisms use sunlight to produce energy through photosynthesis, while chemosynthetic organisms use inorganic compounds to produce energy. Photosynthetic organisms include plants, algae, and some bacteria, while chemosynthetic organisms can be found in environments such as deep-sea hydrothermal vents.

Which plant does highest photosynthesis?

Algae has the highest rate of photosynthesis among plants because of their ability to efficiently use sunlight and nutrients in water. They are known for their rapid growth and ability to convert light energy into chemical energy at a fast pace.

How can you test a leaf for carbon dioxide?

To test a leaf for carbon dioxide, you can use a process called leaf disk assay. This involves placing leaf disks in a solution that is low in carbon dioxide, such as sodium bicarbonate solution, and then measuring the rate at which the leaf disks sink to determine the amount of CO2 produced during photosynthesis. Alternatively, you can use a gas sensor to directly measure the amount of carbon dioxide being absorbed or released by the leaf.

Name five substances that plants make from glucose produced in photosynthesis?

  1. Starch - a storage carbohydrate used to store excess glucose.
  2. Cellulose - a structural carbohydrate that forms cell walls.
  3. Lipids - used for energy storage and structural purposes.
  4. Proteins - synthesized using amino acids derived from glucose.
  5. Plant pigments such as chlorophyll, carotenoids, and anthocyanins for various functions.

What is an organelle pigment found in plant and algae cell where photosynthesis occurs?

Chloroplasts are the organelles that contain pigments like chlorophyll, responsible for capturing sunlight and carrying out photosynthesis in plant and algae cells. Chloroplasts have specialized structures that enable them to convert light energy into chemical energy used by the cell.

Who proved first that one fifth part of air is oxygen?

The discovery that one fifth of air is oxygen is credited to the scientist Joseph Priestley, who conducted experiments in the 1770s. He is known for isolating and characterizing several gases, including oxygen, and his work laid the foundation for our understanding of the composition of air.

How do liverworts use photosynthesis to produce glucose?

Photosynthesis is the process of converting carbon dioxide and water into the matter that is the physical growth of plants and algae and liverworts. The organic plants and algae and liverworts release oxygen through the process of photosynthesis and thus we maintain the chemical necessary to other living beings on earth, oxygen.
Liverworts are organisms that differ from other plants in appearance and structure although they too convert carbon dioxide and water into simple sugars. Liverworts resemble the human liver in shape or they can be slender and hold tightly compacted leaves with what appear to be tentacles. Liverworts like moss don't have normal root systems like other plants although unlike moss, they have leaf structure and stems like other plants. Liverworts are found in ponds and growing along the banks of lakes and streams.
Since liverworts are like many other plants they do process food for their growth using photosynthesis. However, not all liverworts process in the exact same way. Some liverworts are capable of keeping the carbon dioxide from being spilled into its water or land environment and other liverworts lack the mouth structures of plants to keep the carbon dioxide entirely within its structure. http://www.jstor.org/pss/4216761
The photosynthesis of an Antarctic liverwort was studied to investigate how freezing could affect photosynthesis in liverworts. Using an infra red glass analysis system, they were able to study the rate of carbon dioxide being released by these liverworts. Even at zero temperatures, the liverwort Marchantia could used carbon dioxide and water to produce organic matter and release oxygen. http://www.springerlink.com/content/3bl0q4fb73gv31u1/

How do you illustrate the process of photosynthesis?

Photosynthesis means ''putting together with light.'' This takes place in chloroplasts, which have chlorophyll in them. Chlorophyll absorbs the sunlight. From sunlight, green plants combine carbon dioxide and water to make sugar and oxygen. Green plants use sugar to make starch, fats, and proteins.

Give us examples of science InVEstiGAtory project?

Sure! Some examples of science investigatory projects could include studying the effects of different fertilizers on plant growth, testing the effectiveness of natural remedies on reducing bacteria growth, or investigating the impact of different light sources on seed germination.

The key to the study of biology is learning about the?

relationships between living organisms and their environment, as well as the fundamental principles that govern life processes. Understanding how living organisms function and interact with each other and their surroundings is crucial in the study of biology.

What is the following groups of organisms do not contain any species that can undergo photosynthesis?

The following groups of organisms do not contain any species that can undergo photosynthesis: animals, fungi, and protists. These organisms lack the chlorophyll pigments required for photosynthesis and must obtain their energy from other organic sources.