Which of these structures are found in plant cells but not animal cells? 1. Cell membrane
2. Cell wall
3. Chloroplasts
4. Mitochondria

1 and 4

2 and 3

3 and 4

1 and 2

All of the following statements about enzymes are correct except: proteolytic enzymes are also known as proteases. pectin methyl esterase causes browning of cut fruit. cloud loss in orange juice is due to enzyme activity. proteolytic enzymes in fish cause tissue softening during storage.