Cells and Nucleic Acids Life Sciences Life Sciences

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Cells and Nucleic Acids Life Sciences

Cells and Nucleic Acids Life Sciences

Life Sciences Key Points: Cells and Nucleic Acids • • • Cells Nucleus and

Life Sciences Key Points: Cells and Nucleic Acids • • • Cells Nucleus and nucleolus Chromosomes DNA Genes RNA

Life Sciences The structures below carry genetic information which control the cell’s metabolic processes.

Life Sciences The structures below carry genetic information which control the cell’s metabolic processes. We will now label the structures.

Life Sciences The Cell with its Nucleus

Life Sciences The Cell with its Nucleus

DNA is Found on Chromosomes Each PERSON’S DNA profile is unique!

DNA is Found on Chromosomes Each PERSON’S DNA profile is unique!

Life Sciences Do you know how many chromosomes are there in a normal human

Life Sciences Do you know how many chromosomes are there in a normal human body cell? Answer 46 (23 pairs)

Life Sciences Do you know why DNA is so important? (The Significance of DNA)

Life Sciences Do you know why DNA is so important? (The Significance of DNA) • • Answer DNA controls the production of proteins. DNA is responsible for the transmission of hereditary characteristics from cell to cell and from parent to offspring.

DNA Gene Protein Trait

DNA Gene Protein Trait

Nucleotides are Building Blocks of DNA A Adenine C Cytosine T Thymine G Guanine

Nucleotides are Building Blocks of DNA A Adenine C Cytosine T Thymine G Guanine

A T C G T A C G A T G T C A

A T C G T A C G A T G T C A

Differences Between DNA and RNA DNA RNA Double strand Single strand Deoxyribose sugar Ribose

Differences Between DNA and RNA DNA RNA Double strand Single strand Deoxyribose sugar Ribose sugar Thymine replaced by Uracil

DNA Replication • What? • When? • Why? • How?

DNA Replication • What? • When? • Why? • How?

DNA Replication Unzip into two single strands

DNA Replication Unzip into two single strands

The End Result of DNA Replication - Two identical strands are formed. Each strand

The End Result of DNA Replication - Two identical strands are formed. Each strand now becomes a double helix. Strand 1 Strand 2

DNA Replication • With cell division - New cells require exact copies of the

DNA Replication • With cell division - New cells require exact copies of the DNA as it is in the mother cell. Step 1: DNA unwinds, becomes ladder-shaped. Step 2: Weak H-bonds break, DNA molecule unzips. Step 3: Each strand forms a complementary strand for itself - Nucleotides attach G - C and A - T Step 4: Each strand becomes a double helix. The end result is TWO identical DNA molecules. • Sometimes mistakes happen – mutation

Life Sciences Key Points: Cells and Nucleic Acids • • • Cells Nucleus and

Life Sciences Key Points: Cells and Nucleic Acids • • • Cells Nucleus and nucleolus Chromosomes DNA Genes RNA

Nucleic Acids DNA RNA Nucleic Acids Nucleic acidsNucleic Acids DNA RNA Nucleic Acids Nucleic acids
Nucleic Acids Nucleic Acids Nucleic acids are polimersNucleic Acids Nucleic Acids Nucleic acids are polimers
Nucleic Acids Nucleic Acids Nucleic acids polymer areNucleic Acids Nucleic Acids Nucleic acids polymer are
DNA Nucleic Acids Nucleic Acids DNA Deoxyribo NucleicDNA Nucleic Acids Nucleic Acids DNA Deoxyribo Nucleic
Chemistry of Nucleic Acids Nucleic acids DNA andChemistry of Nucleic Acids Nucleic acids DNA and
Nucleic Acids and Protein Synthesis Nucleic Acids lNucleic Acids and Protein Synthesis Nucleic Acids l
10 Nucleic Acids and Protein Synthesis Nucleic acids10 Nucleic Acids and Protein Synthesis Nucleic acids
Nucleic Acids 1 Nucleic acids Store and transmitNucleic Acids 1 Nucleic acids Store and transmit
EXERGONIC ENDERGONIC Nucleic Acids and ATP Nucleic AcidsEXERGONIC ENDERGONIC Nucleic Acids and ATP Nucleic Acids
NUCLEIC ACIDS RNA and DNA Nucleic Acids vNUCLEIC ACIDS RNA and DNA Nucleic Acids v
Nucleic Acids and Protein Synthesis Nucleic Acids DNANucleic Acids and Protein Synthesis Nucleic Acids DNA
Nucleic Acids NUCLEIC ACIDS AND DNA Standard BiologyNucleic Acids NUCLEIC ACIDS AND DNA Standard Biology
Nucleic Acids Protiens and Enzymes Nucleic Acids ContainNucleic Acids Protiens and Enzymes Nucleic Acids Contain
More Macromolecules Proteins and Nucleic Acids Nucleic AcidsMore Macromolecules Proteins and Nucleic Acids Nucleic Acids
Nucleic Acids Structer and Function Nucleic acids structerNucleic Acids Structer and Function Nucleic acids structer