Biology Quiz

Which of the following is true about the diagram shown?

• It is not made of atoms.

• It is not an element.

• It has no bonds within it.

• It is not a compound.

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NGSS.MS-PS1-1

A marine ecosystem is dependent on phytoplankton and other producers. Why are producers so important?

• They eat dead things and return nutrients to the sediment.

• They create carbon dioxide gas, which animals need to breathe.

• The plant's chlorophyll captures the sun's energy and uses it to make glucose.

• They feed off fish and other large animals to prevent their populations from growing too large.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

How does human activity negatively impact the carbon cycle?

• Burning fossil fuels emits (releases) excess carbon dioxide into the atmosphere.

• Composting (decomposing) food scraps puts carbon in the soil, making it nutrient-rich for plants.

• Planting trees allows them to take up carbon dioxide through photosynthesis.

• Using renewable resources like wind power removes too much carbon dioxide from the atmosphere.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following macromolecules contains genetic information to tell body cells how to operate?

• Carbohydrates

• Lipids

• Nucleic acids

• Proteins

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NGSS.MS-LS3-1

The process of turning free nitrogen gas into usable nitrogen is called

• nitrogen fixation.

• nitrification.

• denitrification.

• ammonification.

Which of the following is a reactant in cellular respiration?

• Water

• Carbon dioxide

• ATP energy

• Glucose

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NGSS.MS-LS1-7

What is the correct definition of an organic molecule?

• It is not a pesticide.

• It has lots of carbon and nitrogen bonds.

• It has lots of carbon and hydrogen bonds.

• It has not been genetically modified.

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NGSS.MS-PS1-1

A farmer has planted corn in a field the past two years in a row. This year, she is careful to plant soybeans there instead. What is the most likely reason for her choice?

• Corn releases too much carbon dioxide into the atmosphere.

• Soybeans are naturally much more pest resistant than corn.

• Corn is tall and attracts lightning, which fixed too much nitrogen near her crops.

• She is rotating her crops so that root bacteria on legumes, like soybeans, can replace nitrogen in the soil.

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NGSS.MS-LS1-5

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According to the label shown, which of the following is the BEST function of this food and the macromolecules it contains?

• It helps pass genetic information on to offspring.

• It provides long term energy storage.

• It provides quick energy.

• It helps to build muscle tissue.

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NGSS.MS-LS1-7

DNA, a nucleic acid that passes on genetic information and tells cells to function, has a strong backbone made of sugars and phosphates that should not break. Which of the following chemical bonds are most likely to hold the DNA backbone together?

• Ionic

• Hydrogen

• Double

• Covalent