Cette leçon contient 44 diapositives, avec quiz interactifs, diapositives de texte et 3 vidéos.
La durée de la leçon est: 50 min
Éléments de cette leçon
Slide 1 - Diapositive
Slide 2 - Diapositive
Slide 3 - Vidéo
03:34
What type of pathogen is TMV?
A
Parasite
B
Bacteria
C
Fungus
D
Virus
Slide 4 - Quiz
Slide 5 - Diapositive
Slide 6 - Diapositive
Slide 7 - Diapositive
Slide 8 - Diapositive
Slide 9 - Diapositive
Slide 10 - Diapositive
03:34
What does TMV stand for?
A
Tobacco mosaic virus
B
Tropical mosaic virus
C
Tangerine mosaic virus
D
Tomato mosaic virus
Slide 11 - Quiz
Slide 12 - Diapositive
Slide 13 - Vidéo
Slide 14 - Vidéo
Match the labels to their parts
Flagella
Cell wall
Cell membrane
Cytoplasm
Capsule
Free DNA
Plasmid
Slide 15 - Question de remorquage
Match the parts of a cell to their function
plasmid
ribosomes
cell membrane
Flagella
Loop of DNA
cytoplasm
cell wall
Capsule
Slide 16 - Question de remorquage
05:57
What is a major difference in DNA organization between bacteria and animal cells?
A
Bacteria have larger chromosomes
B
No membrane-bound nucleus in bacteria
C
Animal cells have circular DNA
D
Bacteria have more DNA strands
Slide 17 - Quiz
01:32
What does unicellular mean?
Slide 18 - Question ouverte
Slide 19 - Diapositive
Slide 20 - Diapositive
Slide 21 - Diapositive
In the early 20th century, more than 30% of all deaths were due to infectious disease. Explain why people are less likely to die from bacterial disease in the 21st century.
Slide 22 - Question ouverte
Slide 23 - Diapositive
Slide 24 - Diapositive
Slide 25 - Diapositive
Slide 26 - Diapositive
Slide 27 - Diapositive
Slide 28 - Diapositive
What is an important step to take after handling raw meat to prevent Salmonella?
A
Use hand sanitizer only
B
Wash hands and surfaces thoroughly with soap and water
C
Leave surfaces as they are
D
Wipe hands on a towel
Slide 29 - Quiz
Who is at higher risk of severe Salmonella illness?
A
Young children, elderly, and people with weakened immune systems
B
Athletes, vegetarians, pregnant women, teenagers
Slide 30 - Quiz
What is a key measure to prevent Salmonella infection?
A
Eating raw seafood
B
Thoroughly cooking food, especially poultry and eggs