Multicellular and Unicellular Organisms

Seven life processes:

MRS GREN

movement, respiration, sensitivity, growth, reproduction, excretion, nutrition

How many cells in adult human?

37 mil

Unicellular definition

Single celled; one celled organism

What is Diffusion

When particles move from a higher concentrated area to a lower concentrated area

Which kingdom do bacteria belong in?

Prokaryote

Which organism doesnt have a nucleus

Prokaryote

Which organism doesnt have mitochondria

prokaryotes

Which organism doesnt have a cell wall

animals and some protoctists

Which organism doesnt have chloroplasts

only plants and some protoctists have chloroplasts

why are viruses not considered living things

because they cant carry out life processes for themselves

How do viruses replicate?

They have a protein coat that contains a strand of genes. The genes have instructions for making new viruses. when a virus gets into a cell, these genes cause the cell to make new copies which burst outta the cell and infect other cells.

wat r parasites

something that lives on or in an organism and cause harm to it

what are obligate parasites

parasites that cannot reproduce without being in their hosts

equation for bacteria respiring anaerobically

glucose → lactice acid(+some energy)

three conditions for yeast to grow

sugar, moisture, warmth

What are enzymes

A substance that can speed up processes in living things

How do bacteria reproduce and how does it work

Binary fission: Its a method of asexual reproduction in which one cells grows and then splits evenly into two identical parts.

What does lactic acid make and how does it make it

The lactic acid bacteria produces makes the milk sour and thickens it. These bacteria are used to make yoghurt and cheese

What is flagella for?

Movement

how do yeast reproduce?

Budding: A type of asexual reproduction in which a daughter cell grows out of the parent cell. the nucleus copies itself(including all the dna) and the new nucleus moves into the bud. The bud has identical inherited features to the parent cell and splits from it.

equation for yeast aerobic respiration

glucose + oxygen → carbon dioxide + water(+energy)

equation for yeast anaerobic respiration

glucose → carbon dioxide + ethanol(+some energy)

what is anaerobic respiration of microorganisms called?

fermentation

when is aerobic respiration used

when the roots of plants are waterlogged and when there isnt oxygen

what is flagella used for

swimming?moving

how do paramecium and amoeba move

paramecium: moving tiny hairs known as cilia

amoeba: moving their pseudopods

equation for algae photosynethesizing

carbon dixoide + water light energy/ chlorophyll→ glucose+ oxygen

what are decomposers

microorganisms that break down dead organisms and animal wastes in a process called decaying

examples of decomposers

fungi protoctists and bacteria