Understanding Transport Mechanisms in Plant Cells and Their Effects on Arsenic Uptake

A comprehensive set of vocabulary flashcards to aid in understanding key concepts related to transport mechanisms in plant cells and their implications for arsenic uptake.

Primary Active Transport

The process of moving ions or molecules against their concentration gradient, utilizing ATP.

Secondary Active Transport

The movement of ions across a membrane via a cotransporter, driven by the gradient created by primary active transport.

Facilitated Diffusion

The process of passive transport of molecules across a biological membrane via specific transmembrane integral proteins.

Simple Diffusion

The movement of molecules from an area of high concentration to an area of low concentration without the need for energy or transport proteins.

Electrochemical Gradient

The gradient that involves both the concentration gradient and the charge gradient across a membrane.

Proton Pump

A type of primary active transport mechanism that moves protons (H+) across a membrane, creating an electrochemical gradient.

Lsi1 and Lsi2

Transport proteins in rice that facilitate the uptake of silicon and arsenic.

Arsenic Uptake

The absorption of arsenic by plants, which can occur through the roots and impact plant health.

Independent Variable

The variable that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Dependent Variable

The variable that is measured in an experiment, which is affected by the independent variable.

Concentration Gradient

A difference in the concentration of a substance across a space, influencing the movement of that substance.

Organic vs. Conventional Rice

Comparative terms for rice grown without synthetic fertilizers or pesticides (organic) versus those that are.

Arsenic Sources

Natural and human-induced sources of arsenic, such as in soil and water due to pollution or geological processes.

Drop-in Hours

Set times when students can attend a teacher's office hours without a prior appointment.

Quiz 1 Content

Material covered from the start of the semester, assessed through a quiz format.