![Page 1: Ms. Nielsen's Courses Site - Science 10 – …msnielsencoursessite.weebly.com/uploads/1/3/5/8/135… · Web viewMulticellular VS Unicellular… depends on 3 things: REMEMBER OCTOS](https://reader036.vdocument.in/reader036/viewer/2022063019/5fe04a401edb29029c75f577/html5/thumbnails/1.jpg)
Science 10 – Organizing Cells, Creating Tissues and Systems
Review Question: Why do larger organisms have to be multi-celled?
Multicellular VS Unicellular… depends on 3 things:1.
2.
3.
REMEMBER OCTOS WHEN THINKING ABOUT ORDER OF MATTER
O
C
T
O
S
Plants are multicellular: made of many parts, each with its own function – organized in increasing complex levels of organization
Tissues= group of cells performing same function together
Organs= tissues contributing to same function
System= group of interconnected organs (two in plants)
Types of Systems:
![Page 2: Ms. Nielsen's Courses Site - Science 10 – …msnielsencoursessite.weebly.com/uploads/1/3/5/8/135… · Web viewMulticellular VS Unicellular… depends on 3 things: REMEMBER OCTOS](https://reader036.vdocument.in/reader036/viewer/2022063019/5fe04a401edb29029c75f577/html5/thumbnails/2.jpg)
From the 2 types of systems, there are 3 types of tissues◦ Dermal Tissue (epidermis)
◦ Ground Tissue
◦ Vascular Tissue
![Page 3: Ms. Nielsen's Courses Site - Science 10 – …msnielsencoursessite.weebly.com/uploads/1/3/5/8/135… · Web viewMulticellular VS Unicellular… depends on 3 things: REMEMBER OCTOS](https://reader036.vdocument.in/reader036/viewer/2022063019/5fe04a401edb29029c75f577/html5/thumbnails/3.jpg)
Parts of the Plant Leaf System:
Cuticle Xylem-
Dermal tissue/epidermis
Phloem
Palisade Cells Stoma
Why so many on the bottom side of the leaf?
Vascular Bundle- Guard Cells
Spongy Mesophyll
What to DoLabel the specialized leaf cells in the diagram below. Then write a brief description of the function of each leaf cell.
A.
![Page 4: Ms. Nielsen's Courses Site - Science 10 – …msnielsencoursessite.weebly.com/uploads/1/3/5/8/135… · Web viewMulticellular VS Unicellular… depends on 3 things: REMEMBER OCTOS](https://reader036.vdocument.in/reader036/viewer/2022063019/5fe04a401edb29029c75f577/html5/thumbnails/4.jpg)
B.
C.
D.
E.
F.
G.
H.
Plant Growth
Cells divide to grow and repair damage. This cell division is called ___________________________.
In plants, increase in size results from the cell division in growth areas called ________________
What Happens in the MeristemRapidly dividing cells at the tip of the root
Cell walls thin nuclei are large vacuoles are small or absent
Why is this?
Roots – Hair like projections called root hairs – Why is this beneficial?
![Page 5: Ms. Nielsen's Courses Site - Science 10 – …msnielsencoursessite.weebly.com/uploads/1/3/5/8/135… · Web viewMulticellular VS Unicellular… depends on 3 things: REMEMBER OCTOS](https://reader036.vdocument.in/reader036/viewer/2022063019/5fe04a401edb29029c75f577/html5/thumbnails/5.jpg)
Root Cross Section
Think about it – If plants and animals didn’t have specialized cells, tissues and systems, how would they function (if at all)