1.3 Cells the smallest units of life 1HVTTO

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

1.3 Cells, the smallest units of life

• Jacket in your locker
• Put your things on your desk

       Laptop/Book

       Notebook, pencil case

• Bag on the floor
  
• Read pages 16-18

Lessongoals

• Remember: I can identify the main components of a basic cell, including the cell membrane, cytoplasm, and nucleus.
• Understand: I can explain the function of different cell organelles, such as the chloroplast, mitochondrion, and vacuole.
• Analyze: I can compare and contrast the characteristics of bacterial, fungus, animal, and plant cells.

Homework C1.3

Asgmt 18-24

Wheel of homework

Go to Lessonup.app and use this code

Reward

Penalty

Rewards

• +1 cm2 cheatsheet = you get to make a cheatsheet for a test. This starts being 1 by 1 cm. Everytime you earn this it gets 1 cm bigger to a max of 4 by 4 cm.
• 1/3 +0.5 = If you earn this 3 times you get to add 0,5 to one of your biology marks.
• Snitch = You can pick a classmate who also is checked for homework, you earn two V's (having 3 earns you a 1/3 +0,5)
• Too bad = You only get one V
  

penalties

• 45 min extra worktime = you need to come after school and do homework, this will last for 45 min or until the task is done
• Coloringpage = You get to pick a coloringpage, You need to color it and perform tasks that might be on it. You need to hand it in during the next lesson, If you don't you get 2 marks.
• 2/1 marks = a mark is an X, if you get 3 of these you will automaticly earn the 45 min extra worktime.
• Snitch = You can pick a classmate who also is checked for homework
• Lucky! = You don't get a penalty

Scan the chapter

Use your book and laptop/notebook

• Go to chapter 1.3 on pages 16-18
• Quickly scan the text for difficult/unknown words
• Make a list of all the words you don't know/understand, add these to your PIF
• Add descriptions and/or synonyms of these words during the lesson

During puberty, the body starts producing many hormones.
What organ system is responsible for this task?

1. Endocrine
2. Reproductive
3. Integumentary
4. Lymphatic

Between your muscles and bones is ..?.. tissue that attaches these tissues. (1 word)

The stomach contains lots of cells that create stomach acid to digest your food.
Together, these cells are ..?.. tissue.

1. Muscle
2. Epithelial
3. Functional
4. Nerve

Koen and Revinho look at a microscopic picture of bacteria.
Koen says: The bacteria form a tissue
Revinho says: 1 bacteria is a cell.
Which statement is/are correct?

1. Koen is correct
2. Revinho is correct
3. Both are correct
4. Both are incorrect

Cell

Smallest living part of an organism

Many forms

• Nerve cell
• Fat cell
• Blood cell
• Etc.

Organelles

Organisms are made up of many cells.

Cells contain organelles

Organelles = the 'organs' of cells

cell membrane

cell wall

nucleus

cytoplasm

chloroplast

vacuole

What you should do: 1.3

• Tb: pages  16-18
• Wb: Asgmt  19,20,22
• Lt: Asgmt 2, 3, 5

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: 1.3

• Tb: pages 16-18
  
• Wb: Asgmt 19,20,22
  
• Lt: Asgmt 2, 3, 5

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

What are the 4 main groups
all organisms belong to?

Different cells for different groups

Animals are the only group without cell walls

!

Bacteria are the only group without mitochondria

!

Bacteria are the only group without a nucleus.

!

Keeps outside of the cell sturdy (strong and rigid)

Thin layer around the cell.

Gel-like liquid inside the cell that contains all other organelles.

Control center of the cell, contains the DNA

Performs photosynthesis (process of making food), only found in plants

Turns food into energy, so organisms can do things

Stores water, food and other substances

Bacteria do have DNA but it is not contained inside a nucleus

Many animals have specialized cell types that help them be sturdy (for example bone cells)

Animals are the only group with chloroplasts

!

To which group do these cells belong?

Why?

Cell walls are visible as thick lines between cells.

This cannot be an animal cell as they lack cell walls

Many chloroplasts are inside the cells.

These organelles are only found in plant cells.

So these must be the cells of a plant

You're looking at a microscopic picture of cells. What part of the cell can tell you if they are animal cells?

1. Cell wall
2. Chloroplast
3. Nucleus
4. Mitochondria

What you should do: 1.3

• Tb: Pages  16-18
• Wb: Asgmt  18-24
• Lt: Asgmt 1-7

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: 1.3

• Tb: Pages 16-18
• Wb: Asgmt 18-24
• Lt: Asgmt 1-7

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

Imagine you are looking at three different cells under a microscope: an animal cell, a plant cell, and a bacterial cell. Explain how you can tell the three cells apart by looking for a nucleus, chloroplasts, and a cell wall.

Tidy Duty

Today these people are on tidy duty

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