UNIT 1

  1. ORGANISMS AND LIFE PROCESSES

  2. LIFE PROCESSES 

  3. THE VARIETY OF LIVING ORGANISMS

FIRST LESSON

1 ORGANISM AND LIFE PROCESSES 

WAHT IS LIFE

So, we’re sitting around the Spencer family dinner table discussing AI (we’ve decided not to sculpt or read Proust this evening). There’s been something in the news about how algorithms can now think or how computers are becoming people or how machines are taking over the world. The children are genuinely interested in this and I mention that I recently wrote a blog on just this topic entitled Are you smarter than a computer?

It would be an exaggeration to say this electrifies the conversation but I persist. I say that, unlike many people, I didn’t have a problem with computers thinking, indeed out–thinking humans, and indeed didn’t have any in principle objections to the idea of machines becoming living and thinking humans.

 

The problem, I opined, was that it was difficult to say what being a human really was or even what, indeed, was life?

At his point, there is an abrupt pause in our conversation. Everyone stops eating their quinoa and mung bean salad, both kids look at me incredulous, and say, in unison: “MRS GREN!?

THANK YOU FOR  https://www.theosthinktank.co.uk/comment/2018/10/11/ai-and-mrs-gren-what-does-it-mean-to-be-human

1.1

WHO DO YOU WANTED TO BE

 

MY VISION

SEND 10 STUDENTS TO 

TO ONE GET A NOBEL PRIZE

The Nobel Prize is considered the most prestigious award in the world.

NOTE LESSON1

ABOUT ME

IN SEARCH OF LIFE 

CELL

GREAT SCIENTISTS

UNICELLULAR

MULTICELLULAR

CELL STRUCTURE

PROKARYOTE

EUKARYOTE

NUCLEUS

DNA

CHROMOSOME

GENE

RIBOSOME

ENZYME

CELL MEMBRANE

PARTIALLY PERMEABLE

SELECTIVE PERMEABLE

MITOCHONDRIA

RESPIRATION

PLANT

CELL WALL

CHLOROPLAST

CHLOROPHYLL 

VACUOLE

CYTOPLASM

  1. It contains cell organelles, like mitochondria. 

  2. It is the site of chemical reactions, like those of respiration and protein synthesis. 

  3. It stores substances, as glycogen. 

  4. It plays a skeletal role in supporting the cell. 

  5. It handles materials going in and out of cells.

It is complex in composition, but is largely made of water

CELL STRUCTURE

CYTOPLASM

PROKARYOTE

EUKARYOTE

NUCLEUS

DNA

CHROMOSOME

GENE

RIBOSOME

ENZYME

CELL MEMBRANE

PARTIALLY PERMEABLE

SELECTIVE PERMEABLE

MITOCHONDRIA

RESPIRATION

PLANT

CELL WALL

CHLOROPLAST

CHLOROPHYLL 

VACUOLE

  1. The nucleus controls the activities (chemical reactions) carried out by the cell by making enzymes in the DNA of the nucleus. Enzymes diffuse to the cytoplasm of the cell.

  2. It contains genetic material in DNA making up the chromosomes and the genes that code for the production of specific proteins.

  3. It produces mRNA to produce structural proteins, like collagen and functional proteins, like, enzymes.

  4. It initiates cell division

CELL STRUCTURE

PROKARYOTE

EUKARYOTE

NUCLEUS

DNA

CHROMOSOME

GENE

RIBOSOME

ENZYME

CELL MEMBRANE

PARTIALLY PERMEABLE

SELECTIVE PERMEABLE

MITOCHONDRIA

RESPIRATION

PLANT

CELL WALL

CHLOROPLAST

CHLOROPHYLL 

VACUOLE

RIBOSOMES

  1. They interpret the code in / decode the mRNA. This is called translation.

  2. Ribosomes attract tRNA, bringing amino acids with them and collecting the amino acids. 

  3. They arrange amino acids according to the order of the DNA code.

  4. They join amino acids with peptide bonds to form proteins.

CELL STRUCTURE

PROKARYOTE

EUKARYOTE

NUCLEUS

DNA

CHROMOSOME

GENE

RIBOSOME

ENZYME

CELL MEMBRANE

PARTIALLY PERMEABLE

SELECTIVE PERMEABLE

MITOCHONDRIA

RESPIRATION

PLANT

CELL WALL

CHLOROPLAST

CHLOROPHYLL 

VACUOLE

CELL MEMBRANE

  1. It surrounds the cell. 

  2. It is partially permeable.

  3. It is selectively permeable.

  4. It exerts control over movement of substances in and out of the cytoplasm of the cell by diffusion, osmosis and active transport. – We will discuss this later

  5. It keeps wanted materials in the cell.

CELL STRUCTURE

PROKARYOTE

EUKARYOTE

NUCLEUS

DNA

CHROMOSOME

GENE

RIBOSOME

ENZYME

CELL MEMBRANE

PARTIALLY PERMEABLE

SELECTIVE PERMEABLE

MITOCHONDRIA

RESPIRATION

PLANT

CELL WALL

CHLOROPLAST

CHLOROPHYLL 

VACUOLE

MITOCHONDRIA

  1. Mitochondria contains enzymes in their folded inner membrane, called cristae.

  2. Cristae increase surface area for enzyme activity.

  3. Enzymes bring about aerobic respiration. 

  4. Glucose and oxygen react when enzymes act upon them.

  5. Energy is released and ATP is formed. 

  6. Energy is used to drive metabolic processes / muscle contraction / active transport. 

  7. Examples of process that require energy are mitosis and protein synthesis. 

CELL STRUCTURE

PROKARYOTE

EUKARYOTE

NUCLEUS

DNA

CHROMOSOME

GENE

RIBOSOME

ENZYME

CELL MEMBRANE

PARTIALLY PERMEABLE

SELECTIVE PERMEABLE

MITOCHONDRIA

PLANT

CELL WALL

CHLOROPLAST

CHLOROPHYLL 

VACUOLE

LEARNING IS NOT ONLY EXAMS

IT IS MORE THAN 

CELL STRUCTURE

PROKARYOTE

EUKARYOTE

NUCLEUS

DNA

CHROMOSOME

GENE

RIBOSOME

ENZYME

CELL MEMBRANE

PARTIALLY PERMEABLE

SELECTIVE PERMEABLE

MITOCHONDRIA

RESPIRATION

PLANT

CELL WALL

CHLOROPLAST

CHLOROPHYLL 

VACUOLE

fwhat is the size of acell 

 

LETS GO THE LAB 

Click EXPLORE

Draw a cell - Whitefish interface x 40

STUDENTS ACTIVITY

I AM

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