Osmosis is a form of passive transport. Which defines osmosis? (1 point)

The correct definition of osmosis is: **the movement of water across a semipermeable membrane down a concentration gradient from high to low, using no energy.**

Osmosis is a form of passive transport. Which defines osmosis? (1 point)

A. the movement of water across a semipermeable membrane up a concentration gradient from low to high, using energy
B. the movement of water across a semipermeable membrane up a concentration gradient from low to high, using no energy
C. the movement of water across a semipermeable membrane down a concentration gradient from high to low, using no energy
D. the movement of water across a semipermeable membrane down a concentration gradient from high to low, using energy

The correct answer is: **C. the movement of water across a semipermeable membrane down a concentration gradient from high to low, using no energy.**

Endocytosis and exocytosis are forms of active transport. What is active transport?

(1 point)
A. the movement of molecules down a concentration gradient from high to low, using no energy
B. the movement of molecules up a concentration gradient from low to high, using no energy
C. the movement of molecules down a concentration gradient from high to low, using energy
D. the movement of molecules up a concentration gradient from low to high, using energy

The correct answer is: **D. the movement of molecules up a concentration gradient from low to high, using energy.**

Endocytosis and exocytosis are forms of active transport. What is active transport?

(1 point)
A. the movement of molecules down a concentration gradient from high to low, using no energy
B. the movement of molecules up a concentration gradient from low to high, using no energy
C. the movement of molecules down a concentration gradient from high to low, using energy
D. the movement of molecules up a concentration gradient from low to high, using energy

up-vote

The correct answer is: **D. the movement of molecules up a concentration gradient from low to high, using energy.**

What does it mean for an environment to be isotonic? (1 point)

A. The concentration of solute in the environment is different from the concentration inside the cell
B. The concentration of solute is greater inside the cell than in the environment.
C. The concentration of solute is greater in the environment than inside the cell.
D. The concentration of solute in the environment and the concentration inside the cell are at equilibrium

The correct answer is: **D. The concentration of solute in the environment and the concentration inside the cell are at equilibrium.**

What does it mean for an environment to be isotonic? (1 point)

A. The concentration of solute in the environment is different from the concentration inside the cell
B. The concentration of solute is greater inside the cell than in the environment.
C. The concentration of solute is greater in the environment than inside the cell.
D. The concentration of solute in the environment and the concentration inside the cell are at equilibrium

The correct answer is: **D. The concentration of solute in the environment and the concentration inside the cell are at equilibrium.**

Cells dispose of large waste molecules through a process called

exocytosis.
osmosis.
diffusion.
endocytosis.

Cells dispose of large waste molecules through a process called **exocytosis.**

Cells dispose of large waste molecules through a process called

exocytosis.
osmosis.
diffusion.
endocytosis.

Cells dispose of large waste molecules through a process called **exocytosis.**

What is a cell? (1 point)

the basic unit that controls the organization and structure in all organisms
the reproductive process in which a single unit produces four new, unique units
the reproductive process in which a single unit produces two new, identical units
the basic unit that controls the organization and structure in some living organisms

The correct answer is: **the basic unit that controls the organization and structure in all organisms.**

What is a cell? (1 point)

the basic unit that controls the organization and structure in all organisms
the reproductive process in which a single unit produces four new, unique units
the reproductive process in which a single unit produces two new, identical units
the basic unit that controls the organization and structure in some living organisms

The correct answer is: **the basic unit that controls the organization and structure in all organisms.**

What is the purpose of a concluding section? Select the two correct answers.

A. to point to wider issues connected to the topic
B. to introduce a few additional interesting facts
C. to interest readers in the next topic the author plans to explore
D. to explain how the author arrived at their central point
E. to tie together the main points of the text

The two correct answers for the purpose of a concluding section are:

**A. to point to wider issues connected to the topic**
**E. to tie together the main points of the text**