Bio Ch 4 pt1
Which plant cell organelle converts chemical fuel into packets of chemical energy that can power the cell? A. Mitochondrion. B. Chloroplast. C. Central vacuole. D. Golgi apparatus. E. Plasma membrane.
Answer: A. Mitochondrion. In both plant and animal cells, it's the mitochondria that convert chemical fuel into packets of chemical energy that can power the cell.
_____ are found only in plant cells, but _____ are found in both plant and animal cells. A. Plasma membranes; mitochondria B. Central vacuoles; ribosomes C. Chloroplasts; central vacuoles D. Cell walls; chloroplasts E. Lysosomes; plasma membranes
Answer: B. Central vacuoles; ribosomes Central vacuoles are found only in plant cells. Ribosomes are found in both plant and animal cells.
The plant cell wall A. is found just inside the plasma membrane. B. is a protective structure made of cellulose fibrils. C. regulates the composition of the cytoplasm. D. makes food by converting light energy to chemical energy. E. is very similar to the animal cell wall.
Answer: B. is a protective structure made of cellulose fibrils. The cell wall is a structure that protects the plant cell and is made of cellulose fibrils.
Which of the following is a function of the central vacuole? A. Storing the genetic information of the cell B. Converting light energy to chemical energy C. Separating the cell from its surroundings D. Storing compounds produced by the cell E. Working with mRNA to synthesize proteins
Answer: D. Storing compounds produced by the cell One of the functions of the central vacuole is to store compounds produced by the cell.
Which of the following describes the function of the chloroplast? A. The chloroplast creates internal pressure for a cell. B. The chloroplast functions as the site of lipid synthesis. C. The chloroplast stores compounds produced by the cell. D. The chloroplast serves as a protein manufacturing facility. E. The chloroplast converts light energy to chemical energy.
Answer: E. The chloroplast converts light energy to chemical energy. The chloroplast makes food for the plant cell by converting light energy to chemical energy.
