Biology EOC Review 1

Salivary amylase is an enzyme in humans that breaks down starches. What substance would humans have difficulty digesting with this enzyme?

• lipids

• nucleic acids

• proteins

• carbohydrates

Tags

NGSS.MS-LS1-7

Which best explains why the rate of a biochemical reaction decreases at high temperatures?

• The activation energy increases.

• The shape of the enzyme changes.

• The enzyme-substrate complex forms.

• The bonds between substrates are broken.

Tags

NGSS.HS-PS1-5

A contractile vacuole helps protists eliminate excess liquid. This is a "pumping" process which reduces pressure inside the cell and prevents the cell from bursting. What is most likely the source of energy for this process?

• DNA

• lipids

• ATP

• ribosomes

Tags

NGSS.HS-LS1-7

What do both prokaryotic and eukaryotic cells contain?

• membrane-bound organelles

• genetic material

• cytoplasm

• a nucleus

This diagram shows a Paramecium, a unicellular protist. When a chemical is added to the pond water in which the Paramecium lives, the Paramecium stops moving. Which structure is most likely affected?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-LS1-2

Which molecules are joined together to make proteins?

• fatty acids

• nucleic acids

• amino acids

• acetic acids

Tags

NGSS.HS-LS1-6

This diagram shows a red blood cell in a beaker that contains a solution with a higher salt concentration than that inside the red blood cell.

What will happen to the red blood cell in this environment?

• The size of the red blood cell will remain constant.

• The red blood cell will swell at first and then shrink.

• The red blood cell will swell from absorbing salt molecules.

• The red blood cell will shrink from losing water molecules.

Tags

NGSS.HS-LS1-3

This diagram represents a closed terrarium exposed to sunlight.

What must happen for the carbon cycle to continue in this terrarium?

• All organisms must continue to exchange gases.

• The snails must double their production of carbon dioxide.

• The plant must produce carbon dioxide at a faster rate.

• The decomposers must begin to produce oxygen.

Tags

NGSS.HS-ESS2-6

NGSS.HS-LS2-5

A student noticed that the freshwater plant, Elodea, produced bubbles when placed in direct light. What could the student most likely conclude?

• Bubbles of carbon dioxide were produced as a result of photosynthesis.

• Bubbles of oxygen were produced as a result of photosynthesis.

• Bubbles of carbon dioxide were produced as a result of cellular respiration.

• Bubbles of oxygen were produced as a result of cellular respiration.

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5

A freshwater plant is placed in a container of saltwater. What will most likely happen to the cells of the plant?

• They will swell because water will move into them.

• They will swell because salt will move into them.

• They will shrink because water will move out of them.

• They will shrink because salt will move out of them.

Tags

NGSS.HS-LS1-3