Science 7 Flashcards
Are prokaryotic cells simple?
No
What do you call it when a large population of bacteria grow in a certain place?
Culturing bacteria
Do all bacteria grow on a single type of culture medium?
No
What is a common culture medium to grow bacteria on?
Agar
What’s one illness caused by bacteria?
Cholera
What is one illness not caused by bacteria?
Hemophilia
What two organisms make antibiotics?
Mold and bacteria
What are antibiotic resistant bacteria?
Bacteria which is immune to the antibiotic
How do bacteria become antibiotic resistant?
They are exposed to small amount of the antibiotic over time
Did bacteria just now start becoming resistant to antibiotics?
No. Evidence shows that they have been resistant since the Middle Ages
Does Mutation create new genes?
No
What chemical is Lactase?
A digestive enzyme
Why don’t we hear about vitamins like F, G, H, I, and J?
Because not all vitamins are needed for humans
Should you get as many vitamins as possible since they are good for you?
No
What do red blood cells do?
They carry oxygen and carbon dioxide
What do white blood cells do?
They fight pathogens
If a part of your body is inflamed, are there more white or red blood cells then normal?
White
Does your microbiome stay the same through your whole life?
No, your microbiome changes to meet your different needs as you get older.
What do Cyanobacteria do?
They make oxygen for other organisms to breathe, and they remove carbon dioxide from the air
What do nitrogen-fixing bacteria do?
They convert nitrogen in the air to a chemical that other organisms can use to get nitrogen atoms
What type of bacteria support organisms at a hydrothermal vent?
Extremophilic bacteria
What two organisms have a mutualistic relationship with a leaf cutter ant?
Fungus and a bacterium
When you cook food with protein in it what are you doing to the protein?
Denaturing it
What is the smallest organism?
Bacteria
