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U3 B5+6 HV
What are we going to do?
Recap
Fungi and bacteria
End
1 / 23
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Slide 1:
Slide
Biologie
Middelbare school
havo, vwo
Leerjaar 1
This lesson contains
23 slides
, with
interactive quizzes
,
text slides
and
3 videos
.
Lesson duration is:
45 min
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Items in this lesson
What are we going to do?
Recap
Fungi and bacteria
End
Slide 1 - Slide
You see a microscopic picture of a cell. What part can you best look for if you want to check if the organism is a bacterium?
A
Cell wall
B
Plastid
C
Nucleus
D
Vacuole
Slide 2 - Quiz
You see 2 flies with slightly different colors. You want to test if they belong to the same species. How could you test this?
Slide 3 - Open question
What part of a cell is found in the least number of domains and kingdoms
A
Cell wall
B
Plastid
C
Nucleus
D
Vacuole
Slide 4 - Quiz
List the domain, kingdom and phylum a frog belongs to.
Slide 5 - Open question
In which of these groups will you find the most different organisms?
A
Kingdom
B
Phylum
C
Order
D
Species
Slide 6 - Quiz
All vertebrates have an ... skeleton and are ... symmetrical
A
External and bilateral
B
Internal and bilateral
C
External and radial
D
Internal and radial
Slide 7 - Quiz
Fungi cells
Nucleus
Cell wall
Slide 8 - Slide
Slide 9 - Video
Unicellular fungi
Reproduction by
budding
cells divide by forming buds
Example: yeast
Slide 10 - Slide
Multicellular fungi
Reproduction by
spores
- Toadstools
- at the end of
hyphae
Examples
Slide 11 - Slide
Useful & harmful
Feed on dead bodies of other organisms
Make penicillin
Biotechnology : bread, beer, cheese, etc.
Cause fungal infections
Spoil food
Slide 12 - Slide
Bacteria are everywhere
Slide 13 - Slide
Cell characteristics of prokaryotes
All prokaryotes
(bacteria and
archaea)
have:
NO
nucleus
Cell wall
Cell membrane
Cell wall
Slide 14 - Slide
Features of bacteria
Always unicellular
Very small (too small for most microscopes)
Reproduction: Cell division
Slide 15 - Slide
Reproduction
Speed depends on:
Temperature
Food
Species
s
s
Slide 16 - Slide
Useful bacteria
Most bacteria are useful:
Help digest food in our intestines
Kill harmful bacteria on our skin
Feed on dead organisms
Can be used in making food: Yoghurt, Sauerkraut
Slide 17 - Slide
Harmful bacteria
Cause diseases
Spoil food
Antibiotics (like penicillin) kill bacteria
Slide 18 - Slide
What you should do:
Read Bs 5 (fungi)
Do asgmt 8 and 9
Read Bs 6 (bacteria)
Do asgmt 4
Done with the above?
Work on the next chapter(s)
Learn for the test (in two weeks)
Make other homework
Read a book
Zs
= Working in Silence
No
asking questions
Silent,
don't disturb anyone
Stay at your
desk
timer
6:00
Slide 19 - Slide
What you should do:
Read Bs 5 (fungi)
Do asgmt 8 and 9
Read Bs 6 (bacteria)
Do asgmt 4
Done with the above?
Work on the next chapter(s)
Learn for the test
Make other homework
Read a book
Zw
= Working with whispering
Teacher is available for questions
Only
whisper with the student next to you
Stay at your
desk
Slide 20 - Slide
Slide 21 - Video
Slide 22 - Video
Tidy Duty
Today these people are on tidy duty
Desks: empty and straight
Chairs: underneath the desks
Floor: no rubbish
Slide 23 - Slide
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