STAAR/EOC REVIEW (Start-12:37)

Reorder the following from least to greatest (from left to right).

• ecosystem

• population

• biome

• community

• organism

​ ​ (a)   - Organisms that have similar features and can reproduce.

​ (b)   - A group of the same species that live in a certain area.

​ (c)   -  A combination of all the different populations that live and interact in the same environment

​ (d)   - All the living and non-living things that interact in one specific part of the environment.

• Species
• Population
• Community
• Ecosystem

Tags

NGSS.MS-LS2-4

This biomolecule is composed of carbon, hydrogen and oxygen. It can be found in foods such as bread, pasta, potatoes, and any other starchy food. 

• Protein
• lipids
• carbohydrates
• nucleic acid

Tags

NGSS.MS-LS1-7

NGSS.MS-PS1-1

Dystrophin is a molecule that holds muscle fibers together. In people with muscular dystrophy, a genetic disease that causes people to lose the ability to walk at a young age, dystrophin molecules never develop.

What biomolecule is this person missing?

• Carbohydrates

• Lipids

• Proteins

• Nucleic Acids

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

C,H,O,N,P are the elements in

• Nucleic acid

• Protein

• Carbohydrate

• Lipid

Tags

NGSS.HS-LS1-1

The graph shows how enzymes affect reactions in cells. Which statement best summarizes the information shown in the graph?

• Enzymes increase the energy of the reactants.
• Enzymes decrease the energy level of the products.
• Enzyme decrease the activation energy of the reaction.
• Enzymes reverse the direction of the reaction.

Based on the graph, what pH does Enzyme C work best at?

• 1.5

• 6

• 8

• 9

At high temperatures enzyme activity declines because of:

• Denaturation
• Decreased Kinetic Motion
• Increased H-Bonding
• Dissociation of Ionic Compounds

Which of the following accurately describes the two cells?

• Cell 1: Eukaryote

  Cell 2: Prokaryote

• Cell 1: Prokaryote

  Cell 2: Eukaryote

• Cell 1: Eukaryote

  Cell 2: Eukaryote

• Cell 1: Prokaryote

  Cell 2: Prokaryote

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

In a eukaryotic cell, where is the DNA located?

• In the cell membrane

• There is no DNA

• In the nucleus

• In the cell wall