Question

often called the \powerhouse\ of the cell, which organelle is responsible for breaking down food molecules to release usable energy for the cell? 1 point
mitochondria
cell wall
nucleus
chloroplast
the cytoplasm is the jelly - like substance that fills the cell and holds the organelles in place. 1 point
false
true

Explanation:

First Question (Organelle "Powerhouse"):

• Mitochondria are known as the "powerhouse" of the cell because they perform cellular respiration, breaking down food molecules (like glucose) to release energy (ATP) for the cell.
• Cell wall provides structure/support (not energy production).
• Nucleus controls cell activities (contains DNA, not energy production).
• Chloroplast is for photosynthesis (in plants, converts light to energy, but not the "powerhouse" for general energy release from food).

Cytoplasm is the jelly - like (aqueous - gel like) substance within the cell membrane that fills the cell and suspends/organizes the organelles, holding them in place (along with other functions like facilitating chemical reactions). So the statement is true.

Answer:

A. Mitochondria

Second Question (Cytoplasm Description):