Oxygen has an atomic number of 8 how many valence electrons does it have?
What is 6.
100
3 elements are used to make all 4 biomolecules: proteins, lipids, carbohydrates and nucleic acids. What are these 3 elements?
What is carbon, hydrogen, and oxygen.
100
Does active transport requires energy. If so, what is the name of this energy!
What is yes it needs energy, and ATP.
100
What is the equation for CELLULAR RESPIRATION?
What is C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + 36 or 38 ATP
100
Is water a food source?
What is NO, food needs to have carbon attached to other carbon molecules. Water is H2O. No carbon.
200
How many Hydrogen molecules are found in 4H2SO3?
What is 8.
200
What are the key components for amino acids, nucleic acids and lipids?
What is
amino acids = amino group, carboxylic acid, R group
nucleic acid - sugar, phosphate group, nitrogen base
lipid = glycerol backbone, fatty acid chain or cholestrol
200
Facilitated diffusion moves molecules up or down (pick one) their concentration gradient? Why?
What is down their concentration gradient. No energy is needed, it is a type of diffusion.
200
What is the purpose of cellular respiration?
What is to create ATP (energy) for the cell to use to do the work of the cell
200
Excess energy is stored in plants and animals. What is the storage for plants and also animals?
What is fats for animals, and seeds and roots for plants.
300
What do the following have in common? Ionic, hydrogen and covalent?
What is they are all types of chemical bonds.
300
Carbohydrates are important for all of the following EXCEPT _____.
A. Carbohydrates are sugars and created by plants for food from carbon dioxide and water.
B. Carbohydrates are used by plants for their energy needs.
C. Carbohydrates are used as energy storage and as structural components (such as cellulose and chitin)
D. Carbohydrates are two types of sugars are found in DNA and RNA
What is B. Carbohydrates are used by plants for their energy needs.
300
What is a cell membrane made of?
What is phospholipid bilayer, proteins and cholestrol
300
The Calvin Cycle in photosynthesis uses what as the reactant and what as the product?
What is reactant is CO2 and the product is C6H12O6.
300
You are running from a lion, and get short of breath. You are now in aerobic respiration? Yes or No?
What is no, anaerobic means without oxygen.
400
Why is carbon found in so many biological molecules? (Why is it special?)
What is it has 4 valence electrons so it can bond with many different molecules.
400
Proteins are important for all of the following reasons except ____?
A. They are structural components, hair and parts of membranes.
B. They are enzymes.
C. They make up DNA.
D. They make up antibodies in the immune system.
What is they make up DNA.
400
Which of the following is not a function of the cell membrane?
A. Protect the cell
B. Separate the inside of the cell from the outside environment.
C. Create energy, in the form of ATP
D. Selectively permeable- only allow some things to pass but not others
What is C, create energy.
400
Anaerobic respiration (without oxygen) produces what in animals and what is plants.
What is lactic acid in animals and alcohol (fermentation) in plants.
400
Where does the oxygen you breath come from?
What is plants, algae and some bacteria. They create it during photosynthesis.
500
Does this equation follow the Law of Conservation of Matter?
2H2O -> 2H2 + 2O2
Yes or No?
Why or why not?
What is NO, 2H2 is ok but 2O2 has too many oxygen.
500
What are the monomers of the following polymers?
Lipids => _____________
Proteins =>_____________
DNA and RNA => ________________
Polysaccharide => ______________
What is fatty acids, amino acids, nucleic acids and monosaccharides.
500
Which of the following affects whether a molecule can diffuse through a membrane?
size,
temperature,
pH
What is size.
500
CO2 is removed from the atmosphere during what process?
What is photosynthesis.
500
Which of the following can NOT enter into cellular respiration? glucose, starch or cellulose?