Question

1. which statements best describe the difference between active transport and passive transport?

a. active transport occurs only in cells that require large amounts of energy.
passive transport occurs in all cells.
b. active transport requires atp.
passive transport does not require atp.
c. active transport moves substances along the concentration gradient.
passive transport moves substances against the concentration gradient.
d. active transport occurs in all cells.
passive transport requires atp.

1. plants and animals are composed of organic compounds. which of the following are the common elements found in organic compounds?

a. iron, oxygen, nickel, copper
b. sodium, potassium, gold, hydrogen
c. helium, neon, argon, krypton
d. carbon, hydrogen, oxygen, nitrogen

Explanation:

14.

Active transport moves substances against the concentration gradient and requires ATP. Passive transport moves substances along the concentration gradient and does not require ATP.

Organic compounds in plants and animals are mainly composed of carbon, hydrogen, oxygen, and nitrogen.

Answer:

C. Active transport moves substances against the concentration gradient. Passive transport moves substances along the concentration gradient

15.