Answer:
Explanation:
Unicellular organisms fall into two general categories: prokaryotic organisms and eukaryotic organisms. All prokaryotes are unicellular and are classified into bacteria and archaea. Many eukaryotes are multicellular, but many are unicellular such as protozoa, unicellular algae, and unicellular fungi.
There are 2 types of transport mechanisms that involve the movement of materials across the cellular membrane:
1. Passive Transport Mechanisms which is the movement of materials that does not require energy. Instead the movement relies on the permeability of the cell. Under this are three kinds of passive transport mechanisms:
a. Simple Diffusion:
- the movement of materials from a region of higher concentration to lower concentration. No external energy is necessary for the movement. The materials supply the energy themselves.
b. Facilitated Diffusion:
- This differs from simple diffusion because the movement is facilitated by proteins that make up the structure of the membrane. The proteins include channel proteins that allow ions and smaller molecules to cross the membrane. The other protein are the carrier proteins, which bind to materials like sugar molecules and move it across the membrane.
c. Osmosis:
- This is the diffusion of water across the membrane. Osmosis moves water from regions where there are more water molecules of water per volume to regions where there are less water molecules per volume.
2. Active transport on the other hand is a movement mechanism that requires energy. It uses the energy to send materials against the direction it is coming from through simple diffusion. This mechanism is used in a way to keep unwanted ions or other materials out of the cell.
Answer:
B
Explanation:
the size of pot is given two sizes, large and small, whereas the rest are the same therefore, the size of pot is being tested
Because no one knows why climate change happen exactly so they all have different outcomes
Answer:
The correct answer is - they are not made-up of hyphae.
Explanation:
Penicillin notatum is a member of fungi and penicillin genus. These fungi are present on salted foods, inside the house in damp parts mostly.
These fungi are not made up of hyphae. Hyphae are filamentous branches that form fungi body in other fungi groups. On this genus its more of like bush or brush.
Thus, the correct answer is option - they are not made up of hyphae.
