Must Know High School Biology

Kellie Ploeger Cox

Chapter 7 Cell Transport - all with Video Answers

Educators

Chapter Questions

02:04

Problem 1

What two things are needed in order for active transport across a cell membrane to occur?

Ramesh Singh

Numerade Educator

02:13

Problem 2

Compare and contrast diffusion, facilitated diffusion, and osmosis.

Alexander Burbelo

Numerade Educator

01:53

Problem 3

Is the process of endocytosis passive or active transport?

Ramesh Singh

Numerade Educator

05:01

Problem 4

A cell living in hypotonic conditions must deal with osmosis occurring [choose one: out of the cell/into the cell].

Dr. Anas Syed

Numerade Educator

00:57

Problem 5

A paramecium is a single-celled organism that normally lives in a freshwater environment. What would happen if it was transferred to a saltwater habitat?

Catherine Lemar

Numerade Educator

04:54

Problem 6

What is the solute potential $\left(\Psi_{\mathrm{s}}\right)$ of a $0.23 \mathrm{M} \mathrm{NaCl}$ solution at $20^{\circ} \mathrm{C}$ ?

Shalini Tyagi

Numerade Educator

05:52

Glucose molecules do not easily pass across a cell membrane, even if there is a higher concentration of glucose molecules on the outside of the cell than on the inside. What type of cell transport would help the passive movement of glucose molecules into the interior of the cell?

Nalvi Duro

Numerade Educator

02:26

Problem 8

Why is it bad to disrupt a cell's chemical gradients?

Alexander Burbelo

Numerade Educator

05:01

Problem 9

For each of the following, indicate if the solution surrounding the cell is hypertonic, isotonic, or hypotonic:
a. A plant cell floating in pure water:
b. A protist cell normally living in a freshwater lake transferred to a marine environment:
c. A bacterium in a solution that has the same water potential as inside the bacterial cell:

Dr. Anas Syed

Numerade Educator

03:57