Unit 2: Cells and Transport EOC Review

Front

What is the function of a vacuole in plant and animal cells?

Back

A vacuole stores water and other substances; it is much larger in plant cells compared to animal cells.

Front

What organelle is responsible for removing excess water in many protists?

Back

The contractile vacuole functions to remove excess water in many protists.

Front

What are the types of passive transport?

Back

The types of passive transport include osmosis, facilitated diffusion, and diffusion.

Front

What is active transport?

Back

Active transport is the movement of substances against the concentration gradient from low concentration to high concentration, requiring energy.

Front

What is the role of ribosomes in a cell?

Back

Ribosomes make proteins for the cell and can be found attached to the endoplasmic reticulum or free in the cytoplasm.

Front

Define osmosis.

Back

Osmosis is the passive transport of water molecules across a semipermeable membrane from an area of low solute concentration to an area of high solute concentration.

Front

What is facilitated diffusion?

Back

Facilitated diffusion is a type of passive transport that uses transport proteins to help move substances across the cell membrane.

Front

What is the difference between passive and active transport?

Back

Passive transport does not require energy and moves substances down their concentration gradient, while active transport requires energy to move substances against their concentration gradient.

Front

What is the function of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell, providing protection and support.

Front

What is the role of the endoplasmic reticulum?

Back

The endoplasmic reticulum is involved in the synthesis of proteins and lipids; it can be rough (with ribosomes) or smooth (without ribosomes).