Question

tube 1 contains nothing. tube 2 contains a snail. tube 3 contains a leaf. tube 4 contains a snail and a leaf.
which tubes contain organisms that undergo cellular respiration?
the table shown was made to compare and contrast photosynthesis and cellular respiration. in which rows does the table contain errors?

		photosynthesis	cellular respiration
row 2	c₆h₁₂o₆	product	reactant
row 3	h₂o	product	reactant
row 4	o₂	product	reactant
row 5	energy	released	stored

rows 3 and 5
rows 1 and 3
rows 2 and 5
rows 1 and 4

Explanation:

Step1: Recall cellular respiration concept

All living organisms perform cellular respiration. A snail, a leaf, and a small weed are living organisms.

Step2: Analyze each tube

Tube 1 has nothing, no cellular respiration. Tube 2 has a snail (living), Tube 3 has a leaf (part of a living plant), Tube 4 has a weed (living), so they undergo cellular respiration.

Step3: Recall photosynthesis and respiration equations

The photosynthesis equation is $6CO_2 + 6H_2O+light\ energy
ightarrow C_6H_{12}O_6+6O_2$. The cellular - respiration equation is $C_6H_{12}O_6 + 6O_2
ightarrow6CO_2+6H_2O + energy$. In photosynthesis, $CO_2$ and $H_2O$ are reactants, $C_6H_{12}O_6$ and $O_2$ are products, and energy is stored in glucose. In cellular respiration, $C_6H_{12}O_6$ and $O_2$ are reactants, $CO_2$ and $H_2O$ are products, and energy is released.

Step4: Check table rows

Row 1: $CO_2$ is a reactant in photosynthesis and a product in cellular respiration - correct. Row 2: $C_6H_{12}O_6$ is a product in photosynthesis and a reactant in cellular respiration - correct. Row 3: $H_2O$ is a reactant in photosynthesis, not a product, and a product in cellular respiration, so this row is wrong. Row 4: $O_2$ is a product in photosynthesis and a reactant in cellular respiration - correct. Row 5: In photosynthesis, energy is stored, in cellular respiration, energy is released, so this row is wrong.

Answer:

Tubes 2, 3, 4 contain organisms that undergo cellular respiration. Rows 3 and 5 contain errors.