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Drill #5. Quote: " Success is not an 'accident' but a 'planned process'.“ ~ unknown Agenda: Retest option (Raptor Time – this week) Prefix-Suffix pt 1 Cell Parts Cell Project Warm-up: 1. Glycogen is stored in the ______ and ______.

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Drill 5

Drill #5

Quote: " Success is not an 'accident' but a 'planned process'.“ ~unknown

Agenda: Retest option (Raptor Time – this week)

Prefix-Suffix pt 1

Cell Parts

Cell Project

Warm-up:

1. Glycogen is stored in the ______ and ______.

2. All chemical reactions that take place in the body are called ______________.


Prefix suffix i
Prefix-Suffix I

  • Aer- or aero-  air, oxygen

  • Bi-  two

  • Chlor-  green

  • Diplo-  double

  • End- or endo-  within


7 2 notes parts of the cell

7-2 NOTES:Parts of the Cell


Cytology the study of the cell
Cytology: the study of the cell.

I. Three Main Parts of the Cell:


1. Plasma Membrane

barrier that separates and protects the cell from its environment. It is selectively permeable (it allows only certain materials in and out of the cell).


2. Cytoplasm

jelly-like fluid that fills the cell.

It contains water, food, building materials, and organelles.

(cyto- cell, -plasm – fluid)


3. Nucleus

controls all activities of the cell.

There are two main categories of cells, which are divided by the presence or absence of a nucleus.


Prokaryotes pro before karyote kernal
Prokaryotes“pro- before, -karyote – kernal”

  • Do not have a nucleus

  • They have DNA, but do not have a nuclear membrane to protect it.



Eukaryote eu true karyote nucleus
Eukaryote“eu- true, -karyote – nucleus”

  • have a nucleus which encloses the DNA and protects it.


Examples most unicellular organisms protists multicellular organisms animal plant fungus cells
Examples: most unicellular organisms (protists)& multicellular organisms(animal, plant & fungus cells)


Three parts of the nucleus
Three Parts of the Nucleus

Nucleolus: where ribosomes are made

Nuclear Envelope:

Chromatin: individual, stringy strands of DNA

porous membrane that surrounds and protects the DNA


Inside the Nucleus

Nuclear Envelope

Nucleolus

Chromatin


Ii organelles
II. Organelles

  • “little organs” of the cell

  • An organelle carries out a particular job in a cell. By developing organelles, eukaryotic cells became more efficient by splitting up the cells work (division of labor).

  • Because of this they became more complex! EX: multicellular organisms


Ribosomesare small, round organelles that make proteins and deposit them inside the Rough ER. “Protein Factories”

Rough ER- are the tunnels

Ribosomes are the dots


Rough Endoplasmic Reticulum (ER)is a system of membrane tunnels with ribosomes attached to its outer walls.



Smooth ERdo not have ribosomes attached to them. They make and store lipids and are responsible for the detoxification of drugs.


Golgi Bodies or Golgi Apparatussorts, packages and transports proteins“Protein Mail Room”


Lysosomes

“Cleanup Crew”

“lyso- to break, -some – body”

Lysosomes- sacs of digestive enzymes that break down and get rid of worn-out organelles within the cell.


Mitochondria

Where chemical energy in food is transformed into a more usable form for the cell to use.



II. Cytoskeleton

“cyto- cell, -skeleton – support structure”

Supports the cell’s structure. Some help the cell move in its environment.

Examples: cilia – short, hair-like structures

flagella – long, tail-like structure


Cell parts found mainly in plant cells
Cell Parts Found Mainly in Plant Cells

  • Cell Wall

  • Vacuole

  • Chloroplasts


Cell Wall

supports and protects the plant cell and is found outside of the plasma membrane.

It is made of cellulose, which is the main component in wood and paper.


Vacuolesstore materials.

Plants have one large vacuole that helps the cell keep its shape by pumping it up with water.

(Vacuoles are also found in animal cells, but are much smaller.)


Chloroplasts (green)

Are responsible for the process of photosynthesis which converts light energy into chemical energy stored in glucose.



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