Theories
Charles Darwin proposed which theory?
The testes in the male reproductive system are responsible for the production of what?
Sperm and Testosterone.
Name the two types of cells.
Prokaryotic and Eukaryotic cells
Process used by plants and other organisms to convert light energy into chemical energy.
Photosynthesis
This is the reason giant alga is an exception to the cell theory
it lacks subdivision into separate cells
According to the genetic code, what is the central dogma?
DNA --> RNA --> Protein
What are the tiny air sacs in the lungs called?
Aleveoli
Name of the double layer of phospholipids that makes up a plasma membrane.
Phospholipid bilayer
Name the two types of cellular respiration.
Aerobic and anaerobic respiration.
Are viruses living things? Explain.
Viruses are not living things, this is because they depend on cells in order to live.
The origin of eukaryotic cells can be explained by which theory?
Endosymbiotic theory
Explain the difference between arteries and veins when carrying the blood.
Arteries carry oxygenated blood to all body parts, whereas, veins carry the deoxygenated blood to the heart.
State the organelle responsible of regulating the entrance and exit of molecules into and out of the cell (transport across the cell).
Plasma membrane
What are the reactants of photosynthesis?
Water and carbon dioxide.
A group of cells with a common structure and function.
Tissue
Name the three statements of the Cell Theory.
1. All living things are composed of one or more cells
2. The cell is the basic unit of life
3. New cells arise from existing cells.
This hormone surges at ovulation in the female menstrual cycle.
LH (Luteinizing Hormone)
State three organelles only found on plant cells.
A cell wall, a large central vacuole, and plastids such as chloroplasts.
This wavelength is the shortest wavelength absorbed by green plants
what is blue
These trap long wave radiation from earths surface
Greenhouse gases
Explain what Pasteur's experiment about the spontaneous generation was about?
Pasteur invented the swan-necked flask to create an environment known not to grow microorganisms. After sterilizing a nutrient broth in these flasks, he removed the swan necks of the controls. Microorganisms grew only in the controls, refuting spontaneous generation.
B lymphocytes produce antibodies (they are the workers), whereas helper T lymphocytes activate the B cells (they are the supervisors) in this type of immune defense
Adaptive Immunity
Difference between the Rough endoplasmic reticulum and the Smooth endoplasmic reticulum.
Rough endoplasmic reticulum:Has ribosomes attached and creates proteins.
Smooth endoplasmic reticulum:No ribosomes attached and makes phospholipids.
Explain how an enzyme works and why they are important in our body?
The enzyme has an active site which is a specific shape for a specific substrate (lock and key). The substrate binds to the active site to either break down or build up a molecule. The enzyme is needed because it is a catalyst (speeds up the rate of reaction) by lowering the amount of energy our body needs to do the job (activation energy).
An inherited characteristic that enables an organism to survive and reproduce successfully in its environment is called?
Adaptation