Random Parts From Cells Flashcards
What is cilia?
Cilia is hairlike and beats together to move water.
What is an anal pore?
The anal pore expels water
What is the oral groove?
The oral groove sweeps to get food.
What is the gullet?
The gullet is a cavity at the end of the oral groove. Food enters food vacuoles here.
What is the micronnucleus?
The micronnucleus contains genetic information which is exchanged between paramecia during reproduction.
What is the macronucleus?
The macronucleus contains genetic material.
What does DNA stand for and actually do?
DNA stands for deoxyribonucleic acid. It’s the chemical in the nucleus that actually does the controlling.
What is the cytoplasm?
The cytoplasm is a fluid interior. It contains water, dissolved minerals, proteins, and other vital compounds. It has three main features:
1) carries dissolved substances
2) allows dissolved substances to react readily
3) supports the cell structure
What is the cell membrane?
The cell membrane separates the internal environment from the external environment. These membranes are selectively permeable and control the movement of substances through them.
What are vacuoles?
Vacuoles are membrane sacs in the cytoplasm that transport large molecules to and from the cell membrane. Vacuoles are also used to store substances the cell may need in the future.
What are cell organelles?
These are membrane bound structures that separate various functions that are carried on within the cell.
What is the nucleus?
The nucleus is the control centre of the cell. It is usually the largest organelle. It is often the most easily seen structure in a cell. The DNA is the chemical in the nucleus that actually does the controlling.
What are chloroplasts?
When plant like organisms carry out photosynthesis, light energy is changed to chemical energy. Photosynthesis takes place inside organelles called chloroplasts. Chlorophyll can be found in them, and they are only found in plant and plant like organisms.
What is mitochondria?
In order for cells to use energy stored in glucose, they must perform cellular respiration. This occurs in the mitochondria. All plant, animal, and protist cells contain mitochondria. They are the most difficult to see because they are smaller and usually appear to be the same colour as cytoplasm.
