Question

compared to small cells, large cells have more trouble

dividing.

producing daughter cells.

moving needed materials in and waste products out.

making copies of their dna.

which organelles help provide cells with energy?

mitochondria and chloroplasts

rough endoplasmic reticulum

smooth endoplasmic reticulum

golgi apparatus and ribosomes

how are cellular respiration and photosynthesis almost opposite processes?

photosynthesis releases energy, and cellular respiration stores energy

photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back.

photosynthesis removes oxygen from the atmosphere, and cellular respiration puts it back

Explanation:

First Question:

The surface area - to - volume ratio is a key concept here. As a cell grows larger, its volume increases at a faster rate than its surface area. The cell membrane is responsible for moving materials in and out of the cell. A large cell has a relatively smaller surface area compared to its volume, so it has more difficulty in efficiently moving needed materials in and waste products out. Dividing, producing daughter cells, and making DNA copies are not as directly related to the size - related difficulty as the movement of materials.

Mitochondria are known as the “powerhouses” of the cell as they perform cellular respiration to produce ATP (energy) from glucose. Chloroplasts are found in plant cells and some other organisms and are responsible for photosynthesis, which converts light energy into chemical energy (stored in glucose). The rough endoplasmic reticulum is involved in protein synthesis, the smooth endoplasmic reticulum in lipid synthesis and detoxification, the Golgi apparatus in processing and packaging, and ribosomes in protein synthesis. So mitochondria and chloroplasts are the organelles that help provide cells with energy.

Photosynthesis uses carbon dioxide and water to produce glucose and oxygen (removing \(CO_2\) from the atmosphere). Cellular respiration uses glucose and oxygen to produce carbon dioxide, water, and energy (releasing \(CO_2\) back into the atmosphere). Photosynthesis stores energy, cellular respiration releases it. Photosynthesis produces oxygen, cellular respiration uses it. So the correct statement is that photosynthesis removes carbon dioxide from the atmosphere, and cellular respiration puts it back.

Answer:

C. moving needed materials in and waste products out.

Second Question: