All the Scientists

Question 1

Edward Jenner

Answer 1

first vaccine

used puss from a cowpox patient and applied it to a boy, let the boy heal, and then tried the smallpox to the boy

Question 2

Alexander Fleming

Answer 2

discovered penicillin in 1928
bacteria had grown in his petri dish and the air mixed causing the bacteria to mold. the bacteria not affected was blocked off by the penicillin

Question 3

Francesco Redi

Answer 3

theory that flies produce maggots

spontaneous reproduction- the theory that life can come from non-living things (1668)

Question 4

Spallanzani

Answer 4

gravy experiment

micro organisms do not spontaneously generate

Question 5

Pasteur

Answer 5

controlled-straight tube with micro organisms

experimental-no micro organisms in a curved tube

Question 6

Robert Hooke

Answer 6

cell discovery in 1665
english scientist
discovered and named cells
cell shape-reminded him of monastery cells 
created the light microscope

Question 7

Aton Van Leeuwenhoek

Answer 7

1st person to see bacteria- viewed pond water

1st to see protozoan-looked at saliva

Question 8

Shcleiden

Answer 8

concluded that all plants are made of cells in 1838

ex: schleiden down a leaf

Question 9

Schwann

Answer 9

concluded that all animals are made of cells in 1839

ex: the animal swan

Question 10

Virchow

Answer 10

concluded that new cells can only come from the division of existing cells

ex: i chow(saw) the division the existing cells

Question 11

Jan Van Helmont

Answer 11

scientist
took a 5 pound tree and put it in 200 pound of dirt in a big pot. he waited 5 years and watered it. the plant then weighed 169 pounds and 3 ounces and the dirt weighed 199 pounds and 14 ounces.
his conclusion was that the tree mass came from the water

Question 12

Joseph Priestly

Answer 12

discovered that plants make oxygen

conclusion was that the plant in the jar produced something the kept the mouse alive (oxygen)

Question 13

Jan Ingenhousz

Answer 13

dutch scientist

used aquatic plants he discovered that plants only produce oxygen when exposed to sunlight

Question 14

Melvin Calvin

Answer 14

discovered the steps of photosynthesis in the 1940s

Question 15

Hans Kreb

Answer 15

krebs cycle