AP BIOLOGY

LABORATORY REVIEW

TRANSPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What do plant “breath” out?
A
oxygen
B
water vapor
C
helium
D
carbon dioxide
Explanation: 

Detailed explanation-1: -Transpiration occurs when plants take up liquid water from the soil and release water vapor into the air from their leaves.

Detailed explanation-2: -They take in oxygen and give out carbon dioxide. Maggy Benson: So they do the opposite. They inhale one gas and exhale the other at one time a day and then do the opposite at night.

Detailed explanation-3: -As with photosynthesis, plants get oxygen from the air through the stomata. Respiration takes place in the mitochondria of the cell in the presence of oxygen, which is called “aerobic respiration". In plants, there are two types of respiration: dark respiration and photo respiration.

Detailed explanation-4: -Underwater plants take in oxygen through the pores on the top of their leaf surface.

Detailed explanation-5: -Carbon dioxide is a gas found in the air; plants can take in this gas through tiny holes in their leaves. Once they have water and carbon dioxide, they can use energy from sunlight to make their food. The leftovers from making the plant food is another gas called oxygen.

There is 1 question to complete.