Living Earth Final - Semester 2

All of the following reactions are correctly balanced except-

CHE

• A

• B

• C

• D

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Which of the following models best demonstrates the Law of Conservation of Matter?

CHE

• F

• G

• H

• J

Tags

NGSS.MS-PS1-5

CH₄ + 2O₂ ---> CO₂ + 2 H₂O

Count the atoms in the reactants

CHE

• C= 4 H=4 O=1

• C= 1 H=4 O=4

• C=1 H=4 O=1

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-1

In the following equation, what are the REACTANTS?

2C₃H₆+ 9O₂ ---> 6CO₂ + 6H₂O

propane +oxygen ---> carbon dioxide and water

CHE

• propane and oxygen

• carbon dioxide and water

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Based on the Law of Conservation of Matter, describe the relationship between the mass of the reactants and the mass of the products.

CHE

• The mass of the products is always greater than the mass of the reactants.

• The mass of the reactants is less than the mass of the products.

• The mass of the reactants equals the mass of the products.

• The mass of the reactants is greater than the mass of the products.

Tags

NGSS.MS-PS1-5

Proteins are composed of what smaller subunits?

MAC

• amino acids

• nucleic acids

• fatty acids

• nucleotides

What is the monomer of a carbohydrate?

MAC

• Monosaccharides (simple sugar)

• Amino Acids

• Fatty Acids

• Nucleotides

What are lipids composed of? MAC

• Monosaccharides

• Amino Acids

• Fatty Acids

• Nucleotides

Which group of biomolecules provides quick energy to organisms? MAC

• proteins

• carbohydrates

• lipids

• nucleic acids

Which macromolecule helps form muscles and cell structure? MAC

• Nucleic Acid

• Carbohydrate

• Protein

• Lipids

Tags

NGSS.MS-LS3-1