11/1 & 11/2 - 7th Grade Agenda

Learning Objective: Learn about chemical in cellsCollect: Chap 3 Section 1 & 2 Reading GuideCollect: Signed Grade PrintoutChap 2 Test for absent studentsReaction LabVideo: VisionClass Reading p.97-101HW: Reading & Note Taking p. 61 - 64Reminder HW: Cell Model due 11/7 & 11/8 Last day to turn in Late work for 1st Quarter 11/7 & 11/8

Reflection

• Describe 2 differences between plants and animal cells

A tiny cell structure that carries out specific function

within the cell is called _____________Organelle

The _________ is a rigid layer of nonliving material that

surrounds the cells of plants and some other organisms

Cell Wall

The ____________ controls what substance come into

and out of a cell

Cell Membrane

Cell’s Doorway

The ____________ is the cell’s control center, directing all of

the cell’s activities

Nucleus

Brains of the Cells

The _____________ are called the powerhouses of the cell because they

produce most of the energy the cell needs to carry out its functions

Mitochondria

Powerhouse

The _________________ are passageways that carry proteins

and other materials from one part of the cell to another.

Endoplasmic Reticulum

Freeway of the Cells

The ________ are small grain like bodies which are attached to the outer surface of the endoplasmic reticulum. that act like factories to

produce proteins

Ribosomes

Protein Factory

The ___________ can be thought of as the cell’s mailroom. It receive proteins from

endoplasmic reticulum and distribute them to other parts of the cell.

Golgi Bodies

Mailroom

The __________ are only found in plants. It capture energy from

sunlight and use it to produce food for the cell.

Chloroplasts

Solar Cells

The ________ are water filled sac floating in the cytoplasm. It act as the storage

area of the cell.

Vacuoles

Storage Area

The ________ are small round structures that contain chemicals

that break down large food particles into smaller ones

Lysosomes

Cell’s Cleaner

What are cells and organelles made out of?

• Chemicals

What are chemicals made out of?

• Comp_________• Can you give me

examples of compounds?

• Water, Sugar, Alcohol, Carbon Dioxide

ounds

Compound

• When two or more elements comb_____ chemically, they form a compound

ine

Elements• Element is any

substance that cannot be br_______ down into simpler substance.

• Can you give me an example of an element?

• Gold, Hydrogen, Oxygen, Carbon, Nitrogen, Iron

oken

Compound

• Carbohydrates, lipids, proteins and nucleic acids are important groups of organic com_____________ in living things

pounds

Organic Compounds vs Inorganic Compounds

• What is the difference between organic and inorganic compounds?

• Organic compounds have the element carbon (and Hydrogen).

Carbohydrates

• A carbohydrate is an en______ rich organic compound made up of car______, sugar and oxygen.

• Carbohydrates are used to fuel our body

• Sug____ and starches are examples of carbohydrates.

ergy

ars

bon

Lipids = Fat

• Lipids are ene______ rich organic compounds made of car______, hydrogen and oxygen

• Lipids are used by our ner____ cells

• Fats, oils and waxes are all lipids

rgy

bon

ve

Proteins• Proteins are large organic

molecules made of car_____, hydrogen, oxygen, nitrogen.

• Proteins are used to build mus_____, skin and bone cells

• Food that are high in protein include me___, eggs, fi_____, nuts and beans

atsh

bon

cle

Enzymes

• An enzyme is a type of protein that speeds up a che______ reaction in a living thing.

• For example, enzymes in your saliva speed up the dige______ of food.

mical

stion

Nucleic Acids

• Nucleic acids contain the inst________ that cells need to carry out all the functions of life.

• DNA and RNA are Nucleic Acids

ructions

What are the organic compounds found in cells?

• Carboh______

• Lip_____

• Pro_____

• Nuc______ Acid

ydrates

ids

tein

leic

Pant and Animal Cells

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