| Questions | 5 |
| Topics | Autonomic Nervous System, Cerebrum, Cytoplasm, Phase Transition, Stomach |
Part of the peripheral nervous system, the autonomic nervous system regulates involuntary activity in the heart, stomach, and intestines.
The cerebrum is the major part of the brain and is responsible for the main senses (thinking, hearing, seeing).
The nucleus of a eukaryotic cell contains the genetic material of the cell and is surrounded by cytoplasm which contains many organelles. These include:
| Organelle | Function |
|---|---|
| ribosomes | produce proteins |
| mitochondria | produce energy |
| endoplasmic reticulum | helps synthesize proteins and fats |
| Golgi apparatus | prepare proteins for use |
| lysosomes | help the cell manage waste |
| centrosomes | guide cell reproduction |
A substance undergoes a phase transition when it moves from one state of matter to another, for example, when water freezes or boils.
Food is mixed with gastric acid and pepsin in the stomach to help break down protein.