Atp & photosynthesis & respiration

Division Ave High School

Ms. Foglia

REGENTS Biology

ENERGY = ATP

I. What is energy in biology?

ATP

Adenosine TriPhosphate

Whoa!

HOT stuff!

Regents Biology

2009-2010

Regents Biology

B. How is Energy stored in

our cells?

A. What is ATP?

Adenosine Triphosphate is similar to a

nucleotide but has three phosphates

instead of one

Regents Biology

2. Opposites attract

and like charges repel

?The phosphate

groups are

negatively charged

and require LOTS of

energy to be held

together.

Regents Biology

1. In the chemical

bonds between

the phosphates

Regents Biology

How do cells get the stored energy

in ATP for use?

3. When chemical bonds between

phosphate groups in ATP are

broken, Energy is released

4. ATP becomes: ADP (adenosine

diphosphate)

Regents Biology

1

Division Ave High School

Ms. Foglia

REGENTS Biology

C. Animals are energy consumers

u?

1. What do we need energy for?

¡ì?To build more organelles,

and large molecules

¡ì?Cell reproduction

Regents Biology

¡ì?To transport things in and out of the

cell by active transport & bulk

movement.

¡ì?Movement of muscles, cilia, or

flagella

¡ì?temperature control (making heat)

Regents Biology

2. Where do we get energy?

ATP

¡ì? Energy is stored in organic molecules¡ú food

u?

Regents Biology

D. Plants are energy producers

¡ì? Like animals, plants need energy to live

u?

unlike animals, plants don?t need to eat

food to make that energy

¡ì? Plants make both FOOD & ENERGY

Regents Biology

digest food to get

¡ì? fuels for energy (ATP)

¡ì? raw materials for building the four biomolecules

w?carbohydrates, fats, proteins, nucleic

acids

Regents Biology

Summary

¡ì? How is ATP¡¯s energy released

and where do animals get

ATP?

Regents Biology

2

Division Ave High School

Ms. Foglia

REGENTS Biology

A. Who uses photosynthesis?

AUTOTROPHS

Like Plants

II. Energy in Plants

Photosynthesis:

Life from Light and Air

Regents Biology

Regents Biology

ROOT CELLS DO

NOT HAVE

CHLOROPLASTS!!

B. Where does

photosynthesis occur?

THEY DO NOT GO

THROUGH

PHOTOSYNTHESIS

Regents Biology

Regents Biology

Chloroplasts are only in plants

animal cells

plant cells

CHLOROPLASTS

Regents Biology

Regents Biology

3

Division Ave High School

Ms. Foglia

REGENTS Biology

1. Why Are They Green?

¡ì?Chlorophyll

u?Pigment that absorbs all

wavelengths of white light except

for green. Green is reflected.

u?In the fall plants absorb all of

this pigment to conserve energy.

Other pigments contained within

the leaves

are observed.

Regents Biology

Regents Biology

C. What do plants need for photosynthesis?

¡ì? The ¡°factory¡± for making

energy & sugars

u?

chloroplast

¡ì? Fuels

sunlight

u? carbon dioxide

u? water

u?

¡ì? The Helpers

u?

sun

enzymes

D. The EQUATION¡­..

Make ATP!

Make sugar!

I can do it all¡­

And no one

even notices!

Products

Reactants

carbon

sun

+ water + energy ¡ú glucose + oxygen

dioxide

CO2

6CO2 + 6H2O + sun ¡ú

C6H12O6 + 6O2

energy

ATP

enzymes

H 2O

sugars

Regents Biology

E. How does photosynthesis occur?

2 steps

1. Light dependent

reactions

2. Calvin Cycle

Regents Biology

1. Light Dependent Reactions

a. occurs in: the chloroplast

b. Needs: Water and

Photon

s

Light

ATP &

NADPH

H 2O

O2

From

water

?Photolysis?Photo = light

?Lys = destruction

?water molecules are

split using light energy

c. Gives off: O2

Regents Biology

Regents Biology

4

Division Ave High School

Ms. Foglia

REGENTS Biology

2. Calvin Cycle:

(aka Dark Reactions)

WATER

SUNLIGHT

ATP & NADPH

CO 2

CALVIN

CYCLE

LIGHT

DEPENDENT

REACTIONS

b. CO2, is needed

a. Occurs in:

the chloroplast

CARBON

DIOXIDE

ATP

NADPH

C6H12O6

Regents Biology

c. Glucose is

produced.

F. Factors affecting photosynthesis

GLUCOSE

Regents Biology

VI. Factors affecting photosynthesis

2. Amount of Oxygen

Growth

Rate

Growth Rate

1. Temperature

OXYGEN

Temperature

Amount of

Oxygen

Regents Biology

Regents Biology

VI. Factors affecting photosynthesis

VI. Factors affecting photosynthesis

4. Light Intensity

Growth Rate

Growth Rate

3. Amount of Carbon dioxide

Light Intensity

Amount of Carbon

Dioxide

Regents Biology

Regents Biology

5

 ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download