Why is photosynthesis essential to the lives of animals on earth?
Photosynthesis is essential because it produces oxygen, which animals need for cellular respiration to generate energy. It also produces glucose, which serves as a primary source of food for many animals in the form of plants. Without photosynthesis, oxygen levels would decrease, and food sources for animals would be severely limited.
The series of molecules through which excited electrons are passed down a thylakoid membrane during photosynthesis is called the electron transport chain. This chain consists of various protein complexes and molecules, such as plastoquinone, cytochrome b6f complex, and plastocyanin, that work together to transfer electrons and generate a proton gradient used to produce ATP.
What is a simple way to explain photosynthesis?
Photosynthesis is the process by which a plant uses a combination of its chemicals and sunlight to split water into H and O. The H is used by the plant to build more complex chemicals, and the O is a waste gas. Chlorophyll is the important chemical the green plants use to photosynthesize. Red and Brown seaweeds use different chemicals with different colours.
What is function of carotene in photosynthesis?
Carotene is closely allied to chlorophyll in plants and organisms that undergo photosynthesis. It serves two roles. First it absorbs some of the sunlight that is missed by the chlorophyll molecules. Secondly, because of its high number of reactive double bonds, it makes a good 'sponge' to react with, and therefore 'mop up', energetic oxygen molecules that might otherwise oxidise and degrade more important parts of the plant structure. In a typical leaf, there is a ratio of chlorophyll to carotenoid of about 1:3, and the darker the leaf the more carotenoids it contains. Normally, however, the green colour of chlorophyll is so intense it masks the more subtle oranges and reds of the carotenoids. In Autumn however, when the chlorophyll decays, the green fades and leaves turn red and yellow.
Is respiration the exact reversal of the biochemical pathways of photosynthesis?
No, respiration is not the exact reversal of photosynthesis. While photosynthesis uses light energy to convert carbon dioxide and water into glucose and oxygen, respiration breaks down glucose using oxygen to release energy, carbon dioxide, and water. Although there are some shared processes between the two, they are not exact reversals of each other.
How does a unitary rate differ from any other ratio?
A unitary rate is a ratio where the denominator is 1. It represents the quantity of one unit in terms of another unit. Other ratios can have any value in the denominator and may not necessarily represent a quantity of one unit.
What is the basic process and significance of photosynthesis?
The basic process of photosynthesis is the sun is absorbed by the plants chloroplasts and is combined with carbon dioxide and water. The plant is then able to create a chemical reaction with the water, carbon dioxide and sunlight and creates oxygen and glucose. The significance of photosynthesis is to make oxygen for other organisms to live and for plants to be able to make their own energy.
What color are accessory pigments?
Accessory pigments in plants can be various colors such as red, yellow, or orange. These pigments, like carotenoids and anthocyanins, help plants absorb different wavelengths of light for photosynthesis and also provide protection against excess light and stress.
How does rose carry out photosynthesis?
Roses, like all plants, carry out photosynthesis by using chlorophyll in their leaves to capture sunlight energy. This energy is then used to convert carbon dioxide and water into glucose and oxygen. The glucose is used as energy for the plant, while the oxygen is released into the atmosphere.
What is the energy storing molecule created during photosynthesis?
during synthesis, ATP, excess get's stored as glucose. glucose store as starch
What is required in light dependent reactions of photosynthesis?
The light-dependent reactions of photosynthesis require sunlight, water, and chlorophyll to occur. These reactions take place in the thylakoid membranes of the chloroplast and result in the production of ATP, NADPH, and oxygen.
What traps light during photosynthesis?
Pigments such as chlorophyll are responsible for trapping light during photosynthesis. These pigments absorb light energy and transfer it to the reaction center of the photosystem where it is converted into chemical energy. This process allows plants to capture sunlight and use it to produce glucose for energy.
What do you mean by photosynthesis?
Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy, usually from the sun, into chemical energy stored in glucose or other organic compounds. This process involves the absorption of carbon dioxide and the release of oxygen.
Where do the reactions of photosynthesis happen?
They occur first within the cytochrome biochemical photosynthetic Enzymes that reside within the Thylacoid membrane systems that reside within the Grana and Stroma of the Chloroplasts that reside within photosynthetic Organisms.
What is the different between cellular respiration and getting energy from a log by burning it?
Cellular respiration is a metabolic process that occurs in cells to produce energy by breaking down nutrients like glucose using oxygen. Burning a log is a combustion reaction that involves the rapid oxidation of the log's organic molecules, releasing energy in the form of heat and light. Cellular respiration is a controlled process that happens within living organisms, while burning a log is an uncontrolled chemical reaction that occurs outside of living organisms.
It is to safe to perform cunnilingus?
Cunnilingus is generally considered safe if both partners are free of sexually transmitted infections. Using barriers like dental dams or condoms can reduce the risk further. Communication with your partner about sexual health and testing is important before engaging in any sexual activity.
What helps supply energy from the cell?
The electrolyte.
Breaking ions into electronic and protons and depositing on electrodes in the cell and flow of electronic inside and the outside of the circuit when the circuit is closed is called flow of electricity
What year was Monera discovered?
The kingdom Monera was proposed in 1866 by German scientist Ernst Haeckel, who classified all single-celled organisms without a distinct nucleus into this group. It has since been replaced by the domain Bacteria and Archaea in modern classification systems.
Where does photosynthesis occur in a plant cell?
Photosynthesis occurs in the chloroplasts of plant cells. These organelles contain chlorophyll, a pigment that captures light energy from the sun and converts it into chemical energy through the process of photosynthesis.
What are the Elements produced by polythene burning?
When polythene burns, it produces carbon dioxide, water vapor, and trace amounts of carbon monoxide and volatile organic compounds. Burning polythene releases harmful chemicals into the environment and should be avoided.
What is the order of chlorophyll pigment bands from fastest to slowest?
Pigment colour
Pigment
Rf value
orange yellow
carotene
0.96
grey
a breakdown product
0.70
blue green
chlorophyll a
0.58
green
chlorophyll b
0.48
deep yellow
xanthophyll
0.44
What two molecules do plants use to make glucose?
Plants use carbon dioxide (CO2) and water (H2O) to make glucose through the process of photosynthesis. Carbon dioxide is absorbed from the atmosphere through the leaves, while water is absorbed from the soil through the roots.
What two cellular respiration reactions follow glycolysis?
. Glucose is converted to two molecules of the three-carbon compound glyceraldehyde-3-phosphate (G3P), with the expenditure of ATP. 2. ATP is generated from the conversion of G3P to pyruvate. The 10 reactions of glycolysis proceed in four stages. Stage A: Three reactions change glucose into a compound that can readily be cleaved into three-carbon phosphorylatied units. Two of these reactions require the cleavage of an ATP molecule, so that this stage, glucose priming, requires the investment by the cell of two ATP molecules. Stage B: The second stage is cleavage and rearrangement, in which the six-carbon product of the first stage is split into two three-carbon molecules. One is G3P, and the other is converted to G3P by another reaction. Stage C: The third stage is oxidation, in which a pair of electrons is removed from G3P and donated to NAD+. NAD+ is a coenzyme that acts as an electron carrier in the cell, in this case accepting the two electrons from G3P to form NADH. Note that NAD+ is an ion, and that both electrons in the new covalent bond come from G3P. Stage D: The final stage, ATP generation, is composed of a series of four reactions that convert G3P into another three-carbon molecule, pyruvate, and in the process generate two ATP molecules. The glycolytic reaction sequence generates a small amount of ATP by reshuffling the bonds of glucose molecules. Glycolysis is a very inefficient process, capturing only about 2 % of the available chemical energy of glucose. Most of the remaining energy is unrecovered in the molecules that glycolysis procures, particularly pyruvate.