Practice Biology EOC

Front

What is transcription in gene expression?

Back

Transcription is the process where the DNA sequence of a gene is copied into mRNA. It is the first step in gene expression.

Front

What is the product of transcription?

Back

The product of transcription is messenger RNA (mRNA).

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What is a food web?

Back

A food web is a complex network of feeding relationships among organisms in an ecosystem, showing how energy and nutrients flow.

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NGSS.HS-LS2-3

NGSS.HS-LS2-4

Front

What role do zooplankton play in an ecosystem?

Back

Zooplankton are primary consumers that feed on phytoplankton and are a crucial part of aquatic food webs.

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NGSS.HS-LS2-6

Front

What happens to a cell in a hypertonic solution?

Back

A cell shrinks in a hypertonic solution because water moves out of the cell.

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NGSS.HS-LS1-3

Front

What is facilitated diffusion?

Back

Facilitated diffusion is the process of passive transport of molecules across a cell membrane via a transport protein, following the concentration gradient.

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What is the Calvin cycle?

Back

The Calvin cycle is a series of biochemical reactions in photosynthesis that convert carbon dioxide and other compounds into glucose.

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NGSS.HS-LS2-5

Front

What is the difference between diffusion and facilitated diffusion?

Back

Diffusion is the movement of molecules from high to low concentration without the need for a transport protein, while facilitated diffusion requires a transport protein.

Front

What is the significance of the concentration gradient in cellular processes?

Back

The concentration gradient is crucial for processes like diffusion and osmosis, as it drives the movement of substances across membranes.

Front

What is the role of mRNA in protein synthesis?

Back

mRNA carries the genetic information from DNA to the ribosome, where it is translated into a protein.