To know what type of transport occurred the lab and collected data are needed. As they are not present an explanation of the different transport's types, will be given.
Water, proteins, ions, and molecules of different sizes can pass through the cell membrane using different types of transports. The transport that each molecule uses depends on the concentration, size, and polarity.
We can classify the types of transport as active and passive.
Passive transport is the one that does not need energy to happen since the molecules move from a place of high concentration to a one of lower concentration. In this group, we have:
- Simple diffusion: small molecules in high concentration on one side of the membrane; move to the other side due to the difference in concentration.
- Osmosis: water passes through the membrane from a place of low concentration of molecules to one of high concentration. Water moves inside or outside the cell to valance the concentration of solutes on both sides of the membrane.
- Facilitated diffusion: uses proteins to transport large molecules, ions, or hydrophobic molecules from one side to the other. In this type of transport, we have proteins that form channels so those hydrophobic molecules can pass through the lipid membrane, and carrier proteins, which binds to a specific molecule changing their shape and transporting the molecule.
Active transport needs the<em> energy</em> to transport molecules; since it goes against the gradient's concentration. In this group, we have:
- Sodium-Potassium pump: uses ATP to move sodium outside the cell and potassium to the inside. The ions with this transport go to where they are most concentrated.
In conclusion, there are different types of transport; they depend on the concentration or type of molecule. To find out what mechanism of transport occurred in the lab, look at the components of the experiment and analyze which of these transports could be present.
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Answer: c. regulates the secretory activity of the pituitary gland.
Explanation:
The hypothalamus can be defined as a small part of the brain that is located at the base of the brain. It has two functions in the human body, first releasing hormones and maintaining homeostasis.
The hypothalamus is responsible for linking the endocrine system to the brain through the pituitary gland. It stimulates the secretion and inhibition of the hormones from the anterior pituitary.
Answer:
7/16
Explanation:
<em>The proportion of the offspring from the cross that will have white flowers is 7/16.</em>
The presence of anthocyanin which determines purple coloration is conditioned by the C_ and P_ alleles. It means that the absence of one or both of C and P will result in white flowers.
Two plants, each with CcPp are crossed:
CcPp x CcPp
Offpring
1 CCPP - purple
2 CCPp - purple
2 CcPP - purple
4 CcPp - purple
2 Ccpp - white
1 CCpp - white
1 ccPP - white
2 ccPp - white
1 ccpp - white
Proportion of offspring with white flowers = 7/16
Proportion of offspring with purple flower = 9/16
<em>See the attached image for the Punnet's square analysis of the cross.</em>
Answer:
During anaphase, each pair of chromosomes is separated into two identical, independent chromosomes. The chromosomes are separated by a structure called the mitotic spindle.Explanation:
Answer:
D.) often exists as a single-stranded molecule
Explanation:
One notable difference between DNA and RNA is that DNA consists of 2 nucleotide strands and RNA consists of 1.
