U2 B5 1HVTTO

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 1

B5 The nucleus

• Grab your Laptop and go to Lessonup
• Grab your Book, Jotter, Pen

Lessongoals

• You can name the features of chromosomes
• You can describe the structure of DNA

Wheel of homework

Go to Lessonup.app and use this code

Reward

Penalty

What part of the cell is a liquid that contains different substances

1. Nucleus
2. Cell membrane
3. Cytoplasm
4. Cell wall

What part makes a cell sturdy/rigid?

1. Nucleus
2. Cell membrane
3. Cytoplasm
4. Cell wall AND Vacuole

What part is only found in plant cells?

1. Nucleus
2. Cell membrane
3. Cytoplasm
4. Cell wall

What part of the cell controls the cell?

1. Nucleus
2. Cell membrane
3. Cytoplasm
4. Cell wall

"Plant cells are often more angular in shape than animal cells."

1. correct
2. incorrect

An animal cell has

1. a nucleus - a cell wall - chloroplasts
2. a nucleus - NO cell wall - NO chloroplasts
3. NO nucleus - a cell wall - NO chloroplasts
4. NO nucleus - a cell wall - chloroplasts

Is this an animal cell or a plant cell?

1. animal
2. plant

animal cell

Plant cell

vacuole

cell wall

chloroplasts

mitochondria

cell membrane

cytoplasm

nucleus

plant cell

animal cell

Plant cell (4)

Animal cell (3)

cell membrane

nucleus

chloroplast

Vacuole

cell wall

photosynthesis

cytoplasm

Damian and Gwen are making lists to remember the differences between animal and plant cells.
Name (at least) 3 things they can write on their list for recognizing plant cells.

What does DNA do?

End of Lessonup part

please close your laptops

The nucleus

• Contains chromosomes
• Chromosomes > DNA
• Contains hereditary characteristics

Chromosome

Cell

Basepair

Hereditary?

(of a disease or characteristic) given to a child by its parents before it is born

Chromosomes

• Chromosomes are visible during cell division
• Human: 46 chromosomes.
• Every body cell contains 46 chromosomes
• Body cells in: legs, brain, stomach, fingers, etc.
• Other organisms have different amounts 

You don't need to learn these amounts for the test!

!

Do you notice anything about these amounts?

DNA

Lots of base pairs together form genes

A base pair is made of 2 pieces, these are called bases.

T and A form a pair

C and G form a pair

Other pairs do not exist in DNA.

DNA is shaped like a ladder.

The ladder is built by using lots of  base pairs.

A gene is the genetic code for a certain trait/characteristic.

You got one half of a DNA-'ladder'. on this part you find the bases ATGGCCTTTA, What bases would be on the half that fits on this one?

How much influence does your DNA have on:
The color of your hair

05

How much influence does your DNA have on:
your height

05

How much influence does your DNA have on:
your weight

05

How much influence does your DNA have on:
Your sexuality (straight, gay, etc.)

05

(Home)work

Basic 5: The Nucleus 1, 2, 3, 4, 5, 7, 8

Basic 6: Read Basic 6

What you should do: U2 B5

• Pages  116-121
• Asgmt  1-9, 6c 
• Or challenge
• Asgmt 3, 5-11, 6c

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zs = Working in Silence

• No asking questions
• Silent, don't disturb anyone
  
• Stay at your  desk

What you should do: U2 B5

• Pages 116-121
  
• Asgmt 1-9, 6c 

Or challenge

• Asgmt 3, 5-11, 6c
   

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

Tidy Duty

Today these people are on tidy duty

• Desks: empty and straight
• Chairs:  underneath the desks
• Floor: no rubbish