1. A(n) _____ is the

• smallest unit that

• can perform all life

• processes.

• (core Biology 1.3)

• a. cell

• b. tissue

• c. organ

• d. organ system

Standards 8.5.2 & 8.5.3

Bert wants to paint his garage with two coats of a special preservative paint. The dimensions of his garage is given below. Each quart of paint will cover 7 square meters of area and costs 8.50 per quart.

2. (1pt) What is the area of Bert’s garage that will be painted?

3. (1pt) What is the minimum number of quarts of paint Bert will need?

4. (1pt) How much will it cost to paint Bert’s garage?

Area triangle = ½ b h A = w x l

BACTERIA A DIVIDES EVERY 20 MINUTES. BACTERIA

B DIVIDES AT A FASTER RATE.AT THE END OF ONE HOUR THERE ARE 50% MORE

BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)

7.3.1 Explain that all living organisms are composed of one cell or multiple cells and that the many functions needed to sustain life are carried out within cells.

7.3.3 Explain that, although the way cells function is similar in all living organisms, multicellular organisms have specialized cells whose specialized functions are directly related to their structure.

7.3.4 Compare and contrast similarities and differences among specialized sub cellular components within plant and animal cells (including organelles and cell walls

Cell – the smallest unit

that can perform all

life’s processes

Cell theory

1. All living things are made of

one or more cells

2. Cells are the basic units of

structure and function

in organisms

3. All cells arise

from existing

cells

Two types of Cells

1. Prokaryote –lacks a nucleus and other internal compartments DNA is a single loop have a cell wall

bacteria

Flagellum allows

Bacteria to move

2. Eukaryotic Cell – cell with a nucleus

have organelles

Plant & animal

cells

Two types of Eukaryotic Cells

Plant

Animal

Animal Cell

Organelle – one of small bodies in a cell’s cytoplasm that are specialized to perform a specific function

Nucleus –the organelle that contains the

cell’s DNA and is the control center of the cell – found in nuclear membrane

DNA – the genetic material you inherit from your parents - contains information that controls

your traits (eye color, hair color etc. ) codes for proteinsDNA located on chromosomes

1. (1pt) What is the only organelle found

inside of the nuclear membrane?

a. Mitochondria

b. Nucleus

c. Lysosome

d. ribosome

Standards 8.5.2 & 8.5.3

Bert wants to paint his garage with two coats of a special preservative paint. The dimensions of his garage is given below. Each quart of paint will cover 6 square meters of area and costs $7.50 per quart.

2. (1pt) What is the area of Bert’s garage that will be painted?

3. (1pts) What is the minimum number of quarts of paint Bert will need?

4. (1pts) How much will it cost to paint Bert’s garage?

Area triangle = ½ b h A = w x l

BACTERIA A DIVIDES EVERY 15 MINUTES. BACTERIA

B DIVIDES AT A SLOWER RATE.AT THE END OF ONE HOUR THERE ARE 50% LESS

BACTERIA B THAN BACTERIA A. HOW MANY BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)

7.3.1 Explain that all living organisms are composed of one cell or multiple cells and that the many functions needed to sustain life are carried out within cells.

7.3.3 Explain that, although the way cells function is similar in all living organisms, multicellular organisms have specialized cells whose specialized functions are directly related to their structure.

7.3.4 Compare and contrast similarities and differences among specialized sub cellular components within plant and animal cells (including organelles and cell walls

Cell membrane – protective barrier that encloses a cell which separates the cell from its environment – controls movement of materials in and out of cell

Mitochondria – organelle that breaks down food to make energy for the cell

Mitochondria has own DNA which is inherited from mother

Cellular respiration takes place in mitochondriaSugar + oxygen → energy (ATP) + carbon dioxide + water

Cellular Respiration

Cytoplasm – the fluid inside the cell – includes all organelles except nucleus

Endoplasmic Reticulum (ER) – system of internal membranes that move proteins and other substances through the cell

Golgi apparatus – membrane-bound sacs that serves as a packaging and distribution center for proteins they receive from the ER.

lysosome A membrane-bounded organelle which

contains digestive enzymes. It acts as the "garbage disposal" of the cell by breaking down cell components that are no longer needed as well as molecules or even bacteria that are ingested by the cell.

Ribosome – make proteins for the cell

Plant Cell

Plant cells have all the structures that animal cells have plus 3 structures that animal cells do not have

cell wall

chloroplast

Plant cells have 3 structures that animal cells do not

1. cell wall

a rigid structure that

surrounds the cell membrane

and provides support for the

cell

Plant cells have 3 structures that animal cells do not

2. Chloroplast – organelle where photosynthesis takes place

Chlorophyll – the green pigment inside the chloroplast that traps the sun’s energy for use in photosynthesis

1. (1pt) The _____is the cellular organelle

that converts food into a form of energy the cell can use. (core std. B 1.3)

a. nucleolus b. mitochondrion

c. ribosome d. chloroplast

Standards 8.5.2 & 8.5.3

Bert wants to paint his garage with two coats of a special preservative paint. The dimensions of his garage is given below. Each quart of paint will cover 8 square meters of area and costs 10.50 per quart.

2. (1pt) What is the area of Bert’s garage that will be painted?

3. (2pts) What is the minimum number of quarts of paint Bert will need?

4. (2pts) How much will it cost to paint Bert’s garage?

Area triangle = ½ b h A = w x l

BACTERIA A DIVIDES EVERY 15 MINUTES. BACTERIA

B DIVIDES AT A FASTER RATE.AT THE END OF ONE HOUR THERE ARE 75% MORE

BACTERIA B THAN BACTERIA A. HOW MANY BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)

7.3.1 Explain that all living organisms are composed of one cell or multiple cells and that the many functions needed to sustain life are carried out within cells.

7.3.3 Explain that, although the way cells function is similar in all living organisms, multicellular organisms have specialized cells whose specialized functions are directly related to their structure.

7.3.2 Understand that water is a major component within all cells and is required to carry out many cellular functions.

Cell membrane – a phospholipid layer

that covers a cell’s surface and acts as a barrier between the inside of a cell and the cells environment

PHOSPHOLIPID is a lipid that contains phosphorous and is a structural component of the cell membrane

LIPID a type of biochemical that does not dissolve in water (fats and steroids)

Fats store energy

Phospholipid – a lipid made of a phosphate

group and 2 fatty acids

Lipid bilayer – basic structure of membrane composed of 2 layers of phospholipids

polar – attracted to water

nonpolar – repelled by water

The arrangement of the phospholipids in the lipid bilayer makes the cell membrane selectively permeable

DIFFUSION movement of high concentration to low `concentration Allows materials to move in and out of cell http://www.biosci.ohiou.edu/introbioslab/Bios170/diffusion/Diffusion.html

Untitled DocumentOSMOSIS diffusion of waterImportant because cells are mostly water (down concentration gradient)

Water will move from high concentration of WATER to low concentration of WATER. Put a cell in pure water- water will move into the cell causing it to swell

During passive transport (facilitated diffusion) particles

are moved across the cell membrane through ion channels

Carrier protein – binds to a molecule allowing molecules (sugars) to pass

1. (1pt) A bacterium that lost its flagella would be unable to ___. (7.3.1)

a. move

b. divide

c. make proteins

d. maintain its shape

Standards 8.5.2 & 8.5.3

Bert wants to paint his garage with two coats of a special preservative paint. The dimensions of his garage is given below. Each quart of paint will cover 5 square meters of area and costs 9.50 per quart.

2. (1pt) What is the area of Bert’s garage that will be painted?

3. (1pt) What is the minimum number of quarts of paint Bert will need?

4. (1pt) How much will it cost to paint Bert’s garage?

Area triangle = ½ b h A = w x l

BACTERIA A DIVIDES EVERY 10 MINUTES. BACTERIA

B DIVIDES AT A SLOWER RATE.AT THE END OF ONE HOUR THERE ARE 50% LESS

BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)

7.3.1 Explain that all living organisms are composed of one cell or multiple cells and that the many functions needed to sustain life are carried out within cells.

7.3.3 Explain that, although the way cells function is similar in all living organisms, multicellular organisms have specialized cells whose specialized functions are directly related to their structure.

7.3.7 Describe how various organs and

tissues serve the needs of cells for nutrient and oxygen delivery and waste removal.

process in which cell membrane surrounds

and encloses large particle to bring into cell

ENDOCYTOSIS continued

Endocytosis and Exocytosis

the process by which a cell releases a large particle by enclosing it in a vesicle

EXOCYTOSIS continued

Exocytosis and Endocytosis

Sodium-potassium pump is one of the most important

active transport systems in cell. Sodium pumped out of cell against gradient potassium pumped into cell against gradient cells use to keep potassium in cell and get rid of sodium

PASSIVE AND ACTIVE TRANSPORTAnimations javascript:changePages('dif_mov.htm','dif_text1.htm');

the movement of materials across the movement of materials across

cell membrane without using cell membrane that uses energy energy (ATP)Concepts in Biochemistry - Interactive Animations

Receptor proteins in the cell membrane

bind to signal molecules in the blood stream which allows the cell to respond to signals from other cells in the body

Cilia or flagella – hair like structures that allow one

celled Protista (protists) to move

Protists – are eukaryotes that are not plant, animal or fungi

1. (1pt) I am the barrier between the

inside and the outside of the cell.

I allow food, oxygen, and

other needed materials

to enter the cell. I am

a part of animal and

plant cells. What am I?

(core Biology B 1.2)

a. cell membrane b. cell wall

c. cytoplasm d. lipid bilayer

Standards 8.5.2 & 8.5.3

Bert wants to paint his garage with two coats of a special preservative paint. The dimensions of his garage is given below. Each quart of paint will cover 6 square meters of area and costs 11.50 per quart.

2. (1pt) What is the area of Bert’s garage that will be painted?

3. (2pts) What is the minimum number of quarts of paint Bert will need?

4. (2pts) How much will it cost to paint Bert’s garage?

Area triangle = ½ b h A = w x l

BACTERIA A DIVIDES EVERY 10 MINUTES. BACTERIA

B DIVIDES AT A SLOWER RATE.AT THE END OF TWO HOURS THERE ARE 50% LESS

BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)

6. (1PT) Which is true of scientific theories? ( std. 7.NS.1)

a. they are replaceable

b. the are unchangeable

c. they are unchallenged

d. they are guesses

7.3.6 Explain that after fertilization a small cluster of cells divides to form the basic tissues of an embryo and further develops into all the specialized tissues and organs within a multicellular organism.

GREGOR MENDEL the father of genetics

Mendel discovered the principles of heredity while studying pea plants

• mendel

HEREDITY

The passing of

genetic traits

from parent

to offspring

HEREDITY – passing traits from parent to offspring

↓GREGOR MENDEL – discovered principles of

heredity while studying pea plants

↓used pea plants because they were self-pollinating

↓SELF-POLLINATING – plants have both female and

male parts (can fertilize itself)

↓self-pollinating plant leads to true breeding plant

(purebred)

↓

TRUE BREEDING PLANT – one where all the offspring

have same characteristics as parent

↓CHARACTERISTIC – is a feature that has different

forms

↓ TRAITS – the different forms of a characteristic

↑ self-pollination

CROSS-POLLINATION

pollen from one

plant fertilizes

flower of another

plant

MENDEL’S first experiment (crossed true breeding plants

with different traits

)

Mendel's Peas http://www2.edc.org/weblabs/Mendel/MendelMenu.html

Mendel used true-breeding plants for seven characteristics

(in this case seed shape)

Mendel's Peas http://www2.edc.org/weblabs/Mendel/MendelMenu.html

Process called

Selective breeding

RATIO –is a relationship between two

numbers Continuum Javascript Ratio Calculator

Of the 7 characteristics Mendel studied there was a fixed ratio between the recessive and dominant trait in the 2nd generation

1. (1pt) Which of the following scientists discovered the principles of heredity by studying pea plants. (std. 8.3.3)

a. Charles Darwin

b. Louis Pasteur

c. Gregor Mendel

d. Marie Curie

e. Leroy Jenkins!!!!

Standards 8.5.2 & 8.5.3

Bert wants to paint his garage with two coats of a special preservative paint. The dimensions of his garage is given below. Each quart of paint will cover 6 square meters of area and costs 11.50 per quart.

2. (1pt) What is the area of Bert’s garage that will be painted?

3. (1pt) What is the minimum number of quarts of paint Bert will need?

4. (1pt) How much will it cost to paint Bert’s garage?

Area triangle = ½ b h A = w x l

BACTERIA A DIVIDES EVERY 30 MINUTES. BACTERIA

B DIVIDES AT A FASTER RATE.AT THE END OF THREE HOURS THERE ARE 50% MORE

BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY BACTERIA B ARE THERE? (7.NS.5 & 7.NS.8)

7.3.6 Explain that after fertilization a small cluster of cells divides to form the basic tissues of an embryo and further develops into all the specialized tissues and organs within a multicellular organism.

MENDEL’S first experiment (crossed true breeding plants

with different traits

)

Mendel's Peas http://www2.edc.org/weblabs/Mendel/MendelMenu.html

Mendel used true-breeding plants for seven characteristics

(in this case seed shape)

Mendel's Peas http://www2.edc.org/weblabs/Mendel/MendelMenu.html

Process called

Selective breeding

RATIO –is a relationship between two

numbers Continuum Javascript Ratio Calculator

Of the 7 characteristics Mendel studied there was a fixed ratio between the recessive and dominant trait in the 2nd generation

1st experimentMendel crossed true-breedingpurple flower with true-breedingwhite flower

This cross called

First generation plants

All first generation plants had

purple flowers. White flowers

disappeared in 1st generation

The trait that appeared in the 1st

generation was DOMINANT

The trait that disappeared in 1st

generation was RECESSIVE

Mendel used true-breeding plants for seven characteristics

(in this case seed shape)

Mendel's Peas http://www2.edc.org/weblabs/Mendel/MendelMenu.html

Process called

Selective breeding

A dominant trait (alleles) always shows up in the

organism when that trait (alleles) is present

A recessive trait (allele) is hidden whenever the dominant allele is present

Identify and describe the difference between inherited traits and the physical and behavioral traits that are acquired or learned.

Giant Redwoods

Acquired traits manners hair style language scarsInherited traits eye color hair color blood type dimples Liger