Out of the following given choices;
A. The cell is unable to get more water into the cell.
B. The cell is unable to build more protein molecules.
C. The cell is unable to produce water molecules inside the cell.
D. The cell is unable to maintain a stable internal environment.
The answer is D. Due to high amounts of proteins in the cell, osmoticallyactive proteins cause the internal environment of the cell to be hypertonic tothe extracellular fluid. This causes excess water to enter the cell by osmosis andresulting in lysis.
Answer:
Refractory period
Explanation:
When two stimuli are applied one after another intermediately, muscles contract in response to the first stimuli. Once a muscle fiber receives stimulation to contract, it loses its excitability temporarily and cannot respond for a time. This period when the muscle loses its excitability is called refractory period.
Different types of muscle fibers have different duration of refractory period. The refractory period of skeletal muscle is shorter than that of cardiac muscle. During an absolute refractory period, the activation gates of voltage-gated Na+ channels are open and the channels are inactivating while the voltage-gated K+ channels are open.
organs
striated muscles
cardiac muscles
It wouldn't be b because bones are the protection for organs. I don't think it is a. What do u think?
The pigment that traps energy in plants is chlorophyll.
The pigment that traps energy in plants is called chlorophyll. Chlorophyll is a green pigment found in the chloroplasts of plant cells. It absorbs light energy from the sun during the process of photosynthesis and uses it to convert carbon dioxide and water into glucose and oxygen.
Chlorophyll has a structure that allows it to absorb light in the red and blue regions of the electromagnetic spectrum, while reflecting green light. This is why leaves appear green to our eyes.
Other pigments, such as carotenoids, may also be present in plants and can assist in trapping additional energy from different wavelengths of light.
#SPJ6
Energy is primarily trapped by the pigment chlorophyll in plants, which absorbs light and initiates photosynthesis. Other pigments like chlorophyll b and carotenoids each absorb specific light wavelengths. This energy is passed along until reaching a reaction center where it is accepted and converted to a useful form.
The primary pigment involved in the trapping of energy is chlorophyll, specifically found in plants, algae, and cyanobacteria. Chlorophyll absorbs light energy, particularly in the range of 700 nm to 400 nm (photosynthetically active radiation), and initiates the process of photosynthesis. This energy then becomes harnessed and usable by the organism.
Moreover, there are other pigment types, like chlorophyll b and carotenoids, each identified by specific wavelengths of light they absorb. Similarly, the human eye contains pigments capable of absorbing light to enable vision. However, any energy levels that are higher or lower than these specified ranges can either be insufficient to excite an electron or be too intense, leading to the destruction of the molecules through a process called bleaching.
Once the light energy is absorbed by these pigments, it is passed on from molecule to molecule until it reaches a reaction center. At this reaction center, the energy is accepted by a primary electron acceptor pigment or another organic molecule and becomes useful. It's essential to note that until the energy reaches this center, it's merely energy transfer, not electron transfer.
#SPJ11