Well Sertoli cells<span> keep the germ </span>cells<span> that start the process healthy and nourished. </span>
Lysosomes break down and recycle worn out cells.
The arrows usually point to the organisms that are doing the eating.
Explanation:
For that reason, we can say that the arrows represent the flow or transfer of energy in an ecosystem. It also specifies the direction of the flow of energy.
The nurse should include the
following instructions while performing preoperative teaching for an older
adult client who will be undergoing surgery to remove a cataract removed:
1. “A cataract is an opacity of
the lens, which may be as a result of aging, sunlight, or trauma.”
2. “A number of different types
of eye drops would have to be taken several times a day for up to 4 weeks after
the surgery.”
3. “A medication will be administered
to help you relax. You will also receive some different eye drops to dilate
your pupils and paralyze the lens."
4. "You are required to bring
sunglasses with you on the day of your surgery."
5. "Please, may I request you to show me how to put these natural tear
drops in your eyes?"
Answer:
D) In case 1, both PS I and PS II completely lose function; in case 2, a proton gradient is still produced.
Explanation:
The light dependent reaction of photosynthesis, which produces the ATP and NADPH needed in the light independent stage of the process, includes complexes of proteins and pigments called PHOTOSYSTEMS. These photosystems (I and II) are key to the functionality of the light dependent reactions in the thylakoid.
The major pigment present in both photosystems is CHLOROPHYLL A, which absorbs light energy and transfers electrons to the reaction center. Chlorophyll B is only an accessory pigment meaning it can be done without. Hence, if all of the chlorophyll A is inactivated in the algae but leaves chlorophyll B intact as in case 1, both PS I and PS II will lose their function because Chlorophyll A is the major pigment that absorbs light energy in both photosystems.
In case 2, if PS I is inhibited and PS II is unaffected, a PROTON GRADIENT WILL STILL BE PRODUCED because the splitting of water into protons (H+) and electrons (e-) occurs in PSII. Hence, H+ ions can still be pumped into the inner membrane of the thylakoid in order to build a proton gradient even without the occurrence of PS I.
