Photosynthesis and Cellular Respiration

Cell Division Test

Know the chemical equation for photosynthesis.

6CO2 + 6H2O + energy --> C6H12O6 + 6O2

carbon dioxide + water + energy --> glucose + oxygen

What factors affect the rate of photosynthesis?

light intensity, temperature, and water (and color of light from the gizmo)

Know the chemical equation for cellular respiration

C6H12O6 + 6O2 ---> 6CO2 + 6H20 + energy

glucose + oxygen --> carbon dioxide + water + energy

Be able to label an ATP molecule

Define autotroph and heterotroph

Autotroph: make their own food such as plants and bacteria

Heterotroph: get their food from eating plants and/or animals such as animals and fungus.

What do your cells need energy for?

Growth

Building new molecules

Movement

Responding to the environment

Maintaining homeostasis

How does ATP release energy?

Cells release energy by breaking bonds between phosphate groups.

What is the source of all energy on earth?

the sun

Label a chloroplast

Chlorophyll is in the thylakoid

Granum is a stack of thylakoids

Compare light and dark reactions.

Light: Take place in the thylakoids, need sunlight, the H2O and sunlight produce oxygen and turns ADP into ATP

Dark: takes place in the stroma, ATP combines with CO2 and H2O to produce glucose

What are stoma, where are they and why are they important to maintain homeostasis in a plant?

Stoma are the holes that let in CO2 and O2 out. They are on the underside of the leaf. They regulate CO2 and O2 and regulate water loss when they close.

Where are the guard cells and when do they open and close?

They are surrounding the stoma. They open in the day and normal temp. They close at night and when it gets too hot.

How do the reactants of photosynthesis enter a leaf?

Water goes in through the veins, CO2 comes in through the stoma. The leaves absorb the sunlight.

How do the products of photosynthesis leave a leaf?

Oxygen leaves through the stoma and glucose goes through the veins to the other parts of the plant.

How do the reactants of cellular respiration enter your body?

Oxygen enters through inhalation. Glucose enters through food/eating.

How do the products of cellular respiration leave your body?

CO2 leaves through exhalation. Water leaves through sweat and exhalation. Energy leaves through body heat.

Know the 3 stages of cellular respiration.

Glycolysis

Kerbs Cycle

Electron Transport Chain

Which stage occurs in the cytoplasm?

glycolysis

Which occur in the mitochondria?

kerbs cycle and electron transport chain

Which stage does not require oxygen?

glycolysis

Which stage produces the most molecules of ATP?

electron transport chain- 32 ATP

Why do plant cells need mitochondria?

They need it for cellular respiration which creates the ATP energy

How many calories does 1g of fat give you?

9 calories

How many calories does 1g of protein and carbohydrates give you?

4 calories

What does yeast produce as a byproduct of alcoholic fermentation?

CO2 and alcohol.

When do our bodies use lactic acid fermentation? How is it different from cellular respiration?

We use it when you need a short burst of energy such as sprinting. It is different because it does not require oxygen, but cellular respiration does.