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The word photosynthesis comes from the Greek language:
‘photo’ means ‘light’
‘synthesis’ means ‘putting together’

Simple definition: Using light energy to create food (glucose) for the plant.
Side point: That's why plants need light to survive :)

Light energy is absorbed by the chlorophyll from the Sun. Chlorophyll is the green pigment found in chloroplasts. these CHLOROPLASTS are found in the plant cells. Water is absorbed by the root hair cells by osmosis and oxygen is absorbed through tiny holes in the leaf called stomata by diffusion.

Scientific explanation: Photosynthesis is a chemical reaction that takes place in the chloroplasts of green plant cells, where light energy is used to convert carbon dioxide (CO2) and water (H2O) into glucose (C6H12O6) and oxygen (O2).

Word equation to represent this process: carbon dioxide + water —> glucose + oxygen

The left hand side of the arrow are the reactants and the right hand side of the arrow are the products of photosynthesis.

Biology

What is photosynthesis?

BRITANNICA

HOMESCIENCEBIOLOGYCELLS, ORGANS & TISSUES

Eukaryote

BIOLOGY

WRITTEN BY: 

The Editors of Encyclopaedia Britannica

See Article History

Alternative Titles: eucaryote, eukaryotic cell

Eukaryote, any cell or organism that possesses a clearly defined nucleus. The eukaryotic cell has a nuclear membrane that surrounds the nucleus, in which the well-defined chromosomes (bodies containing the hereditary material) are located. Eukaryotic cells also contain organelles, including mitochondria (cellular energy exchangers), a Golgi apparatus (secretory device), an endoplasmic reticulum (a canal-like system of membranes within the cell), and lysosomes (digestive apparatus within many cell types). 



What is a eukaryote ?

Mitosis and meiosis are nuclear division processes that occur during cell division.
Mitosis involves the division of body cells, while meiosis involves the division of sex cells.
The division of a cell occurs once in mitosis but twice in meiosis.
Two daughter cells are produced after mitosis and cytoplasmic division, while four daughter cells are produced after meiosis.
Daughter cells resulting from mitosis are diploid, while those resulting from meiosis are haploid.
Daughter cells that are the product of mitosis are genetically identical. Daughter cells produced after meiosis are genetically diverse. While the processes of mitosis and meiosis contain a number of differences, they are also similar in many ways. Both processes have a growth period called interphase, in which a cell replicates its genetic material and organelles in preparation for division.


Science

What are the differences and similarities between meiosis and Interphase

How to construct Punnett squares.

Determine the parental genotypes. You can use any letter you like but select one that has a clearly different lower case, for example: Aa, Bb, Dd.
Split the alleles for each parent and add them into your Punnett square around the edges.
Work out the new possible genetic combinations inside the Punnett square.
You may be asked to comment on the proportion of different allele combinations in the offspring, calculate a probability, ratio or just determine the phenotypes of the offspring.



How do you work out the percentage of someone with blue eyes from a genetic diagram? (BB, BB, BB in a table

The Qur’ān is the sacred Book that Muslims believe was revealed to Muhammad (peace and blessings be upon him), the last of the Prophets. The Qur’ān was revealed to him gradually, bit-by-bit over a 23 year period – from the time of his call to be a Prophet in 610CE until shortly before his death in 632CE. Muslims believe that Allāh does not speak directly to humankind, rather He created them, then sent to them Messengers to inform them that Allāh created them and commands them to worship Him. This is in order to distinguish which of humankind will have faith in a Lord they will not see or speak to until after death. Revelation is conveyed to mankind through the Angel Jibreel (Gabriel). Allāh said:

“And it is not for any human being that Allah should speak to him except by revelation or from behind a partition or that He sends a messenger to reveal, by His permission, what He wills. Indeed, He is Most High and Wise. And thus We have sent to you (O Muhammad) an Inspiration, and a Mercy of Our Command. You knew not what is the Book, nor what is Faith? But We have made it (this Quran) a light wherewith We guide whosoever of Our slaves We will. And verily, you are indeed guiding mankind to the Straight Path.” (42: 51-53)

Quraan

What is the purpose of the Qur’an, and why is the most important thing/book to Muslims?

The negative electrode is connected to the negative terminal of cell/battery in a DC circuit.  This electrode is called the cathode. Think of the cathode as being covered with electrons that are coming from the cell. So the cathode is negatively charged.

The positive electrode is called the anode. This is connected to the positive terminal of the cell/battery. Think of the anode as having a lack of electrons. So the anode is positively charged.

Let's pick an electrolyte to split apart! Soluble sodium chloride is our electrolyte. It's dissolved in an aqueous solution, so positively charged sodium ions (cations) and negatively charged chloride ions (anions) are not held in fixed positions, rather they are feely moving about in the solution.

How do we split apart these cations and anions away from each other? Remember this simple but important rule - opposites attract. The positively charged sodium ions are attracted to the cathode as it is "covered" with negatively charged electrons. Alternatively, CATions are attracted to the CAThode.

Likewise, ANions are attracted to the ANode. Or, negatively charged chloride ions become attracted and move to the anode, because the anode lacks negative electrons (electron deficient). Since the anode lacks electrons, the anode is a positive electrode.

Remember: opposites attract.

There you have it, you have split the electrolyte sodium chloride. 

Engineering

Can someone help explain the process of electrolysis

ELECTROLYSIS 

Electro = an electric current made up of freely moving electrons
Lysis = to split/break apart

Simple Definition: 
Electrolysis is the process of splitting up molten/dissolved substances, using an electric current. 

Scientific Explanation:
Electrolysis uses electrical energy, transferred from a direct current supply, to split apart (decompose) electrolytes.

Decompose: The prefix "De" means opposite. "Compose" means to join together. Therefore, decompose means to split apart.

Electrolyte: "Electro" refers to a current. "Lyte" is the substance being split apart. The electrolyte is the substance that is being split apart by an electric current.

Direct Current supply (DC) = Is a circuit in which current flows in one direction.  Electrons are negatively charged, and so are attracted to the positive end of a battery and repelled by the negative end. So when the battery is hooked up to something that lets the electrons flow through it, they flow from negative to positive. 

Remember this important rule in science - opposites attract.






DNA is the molecule that holds the instructions for growth and development in every living thing. Its structure is described as a double-stranded helix held together by complementary base pairs. The basic units of DNA are nucleotides. These nucleotides consist of a deoxyribose sugar, phosphate group and a nitrogenous base.



DNA is made up of phosphate groups, nitrogen bases, and what?

Ribosomes are membrane bound organelles found in eukaryotic cells and are the sites of protein synthesis. Proteins are made by a process called translation. The mRNA attaches to a ribosome. The ribosomes 'reads' the nucleotides on the mRNA in groups of 3 called base triplets/codons. Each triplet codes for a specific amino acid. The ribosome continues to 'read' the triplet code, adding more and more amino acids. The amino acids join together in chain. This is a protein.

What is the name of the organelle that makes proteins?

If you place an animal or a plant cell in a hypertonic solution, the cell shrinks, because it loses water ( water moves from a higher concentration inside the cell to a lower concentration outside ). ... A single animal cell ( like a red blood cell) placed in a hypotonic solution will fill up with water and then burst.

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