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Review for Major Grade Test Cells Alive
These are all the questions that you need to study for your major grade test! If the flashcard is just an organelle name, your response should be the function of the organelle :)
51
Science
7th Grade
01/25/2010

Additional Science Flashcards

 


 

Cards

Term

Ribosomes

 

Function?     Location?

Definition

Makes proteins for the cell

 

and

 

is located in the cytoplasm and on the Endoplasmic Reticulum

Term

Lysosomes

Definition

trash can and recycling bin for the cell

 

breaks down food and waste materials the cell cannot use

Term
Golgi Bodies
Definition

Connector road inside cell

 

connects the Endoplasmic Reticulum to other parts of the cell and the world outside of the cell

Term
Nucleus
Definition

 

Brain of the cell

 

Directs ALL cell activities using DNA

Term

Mitochondria

 

What important process happens here?

Definition

Powerhouse of the cell

 

place where respiration happens in cell

 

Glucose is turned into ENERGY here!

Term
Endoplasmic Reticulum
Definition

Cell's superhighway

 

Carries materials around cell

 

Home to ribosomes

Term
Cytoplasm
Definition

Jelly-like material that protects and supports organelles in the cell

 

Made mainly of water

Term
Cell Membrane
Definition

Gateway in and out of the cell

 

Selectively permeable membrate

Term

Cell Wall

 

Where is it found? 

 

What does it do?

Definition

Found only in plant cells

 

Protects and supports the plant cell

 

Gives the plant cell its box-like shape

Term

Choloroplast

 

What color?

 

What important process takes place here?

Definition

Green organelle

 

Where photosynthesis take place in a plant!

Term
The Periodic Table shows the name and symbols for?
Definition
Elements!
Term
What is an element?
Definition
Any substance that cannot be broken down into simpler substances!
Term
What is a compound?
Definition
2 or more elements chemically bonded(joined) together
Term
How many atoms are in water?
Definition

3! 2-H(hydrogens)

and 1-0(Oxygen)

Term
How many elements are in one molecule of water?
Definition

2!

Hydrogen and Oxygen!

Term
How many molecules are in the compound 6H20?
Definition
6!!
Term

Look at the photosynthesis reaction:

6CO2 (Carbon Dioxide) + 6H2O (Water)+light energy=>602 (oxygen) + C6H12O6 (Glucose)

How many different compounds are shown in the reaction?

Definition

4 Compounds!

1st-Carbon Dioxide

2nd-water

3rd-Oxygen

4th-Glucose

Term

Look at the photosynthesis reaction:

6CO2 (Carbon Dioxide) + 6H2O (Water)+light energy=>602(oxygen) + C6H12O6 (Glucose)

How many molecules of Glucose are in the reaction?

Definition
One!
Term

Look at the photosynthesis reaction:

6CO2 (Carbon Dioxide) + 6H2O (Water)+light energy=>602(oxygen) + C6H12O6 (Glucose)

How many different elements are involved in the reaction?

Definition

3!

Carbon, Hydrogen, and Oxygen!

Term
What does it mean when a compound is organic?
Definition
It has the element Carbon in it!
Term
What does it mean when a compound is inorganic?
Definition
It DOES NOT contain the element Carbon. 
Term
Is the compound Carbon Dioxide organic or inorganic? How do you know?
Definition
Organic, it has Carbon!
Term
Is the compound NH4 organic, or inorganic? How can you tell?
Definition
Inorganic, It does not have Carbon. 
Term
The saliva or spit in your mouth is an example of what protein?
Definition
Enzyme!!
Term
What does an enzyme do? (think about the cracker in your mouth lab)
Definition
Speeds up the reaction in your body!
Term
What are the reactants in photosynthesis?
Definition
Carbon Dioxide, Water, and Light
Term
What are the products of photosynthesis?
Definition
Oxygen, and Glucose!
Term
Why is photosynthesis important to all living things on earth?
Definition
It creates food by capturing the sun's energy-NO other living things can do that!
Term
Where does photosynthesis take place (be specific)?
Definition
In the Chloroplasts!
Term
Where does the energy for photosynthesis come from?
Definition
THE SUN!!
Term
What are the reactants of respiration?
Definition
Oxygen, and Glucose!
Term
What are the products of respiration?
Definition
Carbon Dioxide, Water, and ENERGY!!
Term
What is the MOST important product of respiration?
Definition
ENERGY!! For your body to function!
Term
Where in the cell does respiration take place?(two places!)
Definition
Cytoplasm AND Mitochondria
Term
What types of living organisms use respiration for energy?
Definition
ALL living organisms! 
Term
What is the relationship between respiration and photosynthesis? How do they depend on one another?
Definition
The products of one reaction are the reactants of the other!
Term
What is the source of all energy on earth?
Definition
THE SUN!!
Term
Fermentation is a reaction where living things get energy without needing what?
Definition
OXYGEN!!
Term
What are the two types of fermentation?
Definition
Alcoholic Fermentation and Lactic Acid Fermentation
Term

True or False:

Fermentation produces more energy than respiration if the same amount of glucose is used in the reaction. 

Definition

FALSE!!

Respiration produces more energy!

Term
What in-class lab demonstrated fermentation?
Definition
Yeast/Bread Lab!
Term
Is yeast alive? why or why not?
Definition

Yes!

It uses sugar(food) to make energy, so it could grow, develop, reproduce, and respire. 

Term
What is the gas that is produced during fermentation and also makes bread rise?
Definition
Carbon Dioxide!
Term
How is a cell like a castle?
Definition
The cell membrane acts like a castle wall or draw bridge allowing only certain things in or out. 
Term
What does it mean for a cell membrane to be selectively permeable?
Definition
It allows some materials in and keeps others out. 
Term
Diffusion is the process where molecules move from what to what concentrations?
Definition
HIGH to low!
Term
Osmosis is the diffusion of....
Definition
Water molecules!
Term
Why is osmosis so important to cell survival?
Definition
Water is essential to cell function and osmosis brings the water into and out of the cell. 
Term
An egg is placed in a cup of vinegar for 24 hours. Data collected shows the mass of teh egg increased 5 grams and the circumference increased 1 cm. The volume of vinegar in the cup decreased 20 ml. What process explains this data? What was happening?
Definition

DIFFUSION!

The diffusion of the vinegar into the egg is the process taking place. 

Term
An egg is placed in a cup of blue water for 72 hours. Data collected shows the mass of the egg increased .5 grams and the circumference increased by .5 cm. The inside of the egg turned blue. The volume of water in the cup decreased 5 ml. What process explains this data? What was happening?
Definition
The process of Osmosis is causing the water to diffuse into the egg. 
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