Predict: of the molecules shown on the chemicals pane, which do you think are reactants (ingredients) in photosynthesis? which do you think are products?

reactants: products:

explore: drag each molecule from the chemicals pane to the chloroplast on the photosynthesis pane. if a molecule is a reactant, it will stay in the chloroplast.

which molecules are reactants in photosynthesis?

observe: click add light and look at the output. what are the products of photosynthesis?



summarize: a chemical equation shows reactants on the left side of an arrow, and products on the right, like this: reactant + reactant ( product + product.

based on your observations, what is the chemical equation for photosynthesis?

chemical equations are equation in which the reactants react to formed a product

Which molecules are reactants in photosynthesis?

Reactants: light energy, carbon dioxide and water

What are the products of photosynthesis?

Products:  

Oxygen that is released into the atmosphere.

Glucose that is used by the plant as energy and to make other molecules such as starches and sucrose

If a molecule is a reactant, it will stay in the chloroplast, the reactants are light energy, carbon dioxide and water.

The products of photosynthesis also are ATP and NADPH

Based on your observations, what is the chemical equation for photosynthesis?

solar energy + 6 CO2 + 6 H20 ] C6H12O6 + 6O2

CO2: carbon dioxide

H20: Water

C6H12O6: Glucose

O2: Oxígen

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step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.