Chapter 3 Review Part 1

Chapter 3 Review

What have we learned in this chapter?

Section 1--Chemical compounds

Elements found in living things are...

Carbon, Hydrogen, Oxygen, Nitrogen, phosphorus and sulfur

Many of the compunds in living things contain the element carbon.

These are called organic compounds.

Multiple Choice

What element is found in most living things?

• lithium

• hydrogen

• carbon

• helium

4 important groups of organic compunds in living things are...

• Lipids

• Proteins

• Nucleic Acids

• Carbohydrates

Multiple Select

What are the 4 main organic compounds in living things? Check all that apply.

• nucleic acids

• lipids

• carbohydrates

• sodium chloride

• proteins

Section 2--Transport in cells

Diffusion, Osmosis, Active Transport

Diffusion

*Diffusion is the movement of molecules from areas of high concentration to areas of low concentration.

Osmosis

Osmosis is the movement of WATER from areas of high concentration to areas of low concetration.

* Diffusion and Osmosis are examples of PASSIVE TRANSPORT

Optional Activity: Got left over halloween candy?

• Put a gummy bear in a glass of water for 24 hours.

• Observe what happens. Why does this happen?

Acitve Transport

• Active transport is when molecules move from areas of LOW concentration to HIGH concentration

• This takes ENERGY! (ATP)

Multiple Choice

Diffusion and Osmosis is the transport of molecules from areas of _____ concentration to areas of _______ concentration. These are examples of ______ tranport.

• high, low, passive

• low, high, active

​Photosynthesis

• ​The Process by which plants make their own food using sunlight energy and chlorophyll

Multiple Select

What are the reactants (ingredients) in photosyntheiss?

• ATP

• Carbon Dioxide

• Glucose

• Water

Multiple Select

What are the products in photosyntheis?

• ATP

• Glucose (sugar)

• Water

• Oxygen