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Kay [80]
2 years ago
15

What happens in photosystem II?

Biology
2 answers:
netineya [11]2 years ago
4 0
<h2>Answer:</h2>

The correct answer is option A which is, "Electrons are re-energized to be used in NADPH production".

<h3>Explanation:</h3>

In photosystem II, light energy is used to split water molecules which release electrons.

These electrons then move to photosystem I to reduce NADP to NADPH.

Hence electrons in photosystem II are ultimately used to produce NADPH and option C is the correct statement.

Pavlova-9 [17]2 years ago
4 0

Answer: A

Explaxnation:

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Which of the following best describes a vantage of having data presented in a table over a paragraph?
mixas84 [53]

Answer:

C. The way that the data is organized.

Explanation:

Placing data in a table allows the reader to have a better view and understanding of the data and how each figure is related to the rest, via columns and rows.  It also provides a much better organization of the information.  

A, B and D are false answers, because the aspects they mention wouldn't be impacted by a paragraph formatting (numbers would stay the same, just a lot harder to read and understand).

5 0
2 years ago
The plasma membrane is composed of a phospholipid bilayer with embedded proteins what is one of the functions of the embedded pr
Sonja [21]
Transport proteins (carrier proteins and channel proteins) allow substances into and out of the cell that cannot pass through the phospholipid bilayer (as they’re either to large, charged or not lipid soluble) by facilitated diffusion.
Specifically channel proteins allow ions into and out of the cell by creating a pore in the membrane in which they can move through with their concentration gradient
4 0
3 years ago
Animal and Plant Cell Organelles Use the drop-down menus to determine where these organelles can be found. Ribosome Endoplasmic
rjkz [21]

Answer:

  • Animal Cell:

Ribosome, Endoplasmic reticulum, Golgi apparatus, small Vacuoles, Lysosomes, Mitochondria, Cell membrane, Cytoplasm.

  • Plant Cell:

Ribosome, Endoplasmic reticulum, Golgi apparatus, Cell wall, Big Vacuole, Lysosomes, Mitochondria, Cell membrane, Cytoplasm, Chloroplasts.

Explanation:

                       <u>   Animal Cells                              Vegetable Cells</u>

Cell wall                          NO                                             YES

Vacuoles       YES, Small and more than ones     YES, Only one and big

Chloroplast                      NO                                        YES

Plasmatic membrane       YES                                            YES

Mitochondria                       YES                                         YES

Lysosomes                       YES                                           YES

Endoplasmic reticulum      YES                                           YES

Golgi apparatus                   YES                                           YES

Cytoplasm                            YES                                           YES

Ribosome                             YES                                           YES

Both the animal and plant cells are eukaryotic. They carry their genetic material in the nucleus and mitochondria. Organelles are located in the cytosol, and both of them are surrounded by a protector cell membrane.

However, they have some differences:

<u>Cell wall</u>: A rigid structure that provides support and protection.

  • Animal cells do not have a cell wall. They are only surrounded by the cell membrane, which is flexible, so they can adopt different shapes.
  • Plant cells have a wall, so their shape is usually prismatic and regular. The cell wall is composed mainly of cellulose.

<u>Chloroplast:</u> these are organelles that accumulate chlorophyll.

  • Animal cells do not have chloroplasts because they do not photosynthesize.
  • Plant cells have chloroplasts, and they are in charge of the photosynthesis process that allows plants to release oxygen. These organelles use solar light as the source of energy.

<u>Vacuoles</u>:

  • Animal cells have many and small vacuoles whose function is to store water, ions, and waste intracellular substances.
  • Plant cells have a unique big-sized vacuole that might occupy almost 90% of the cell. Their principal function is to store water and keep the turgidity. When the vacuole gets empty, the plant loses rigidity.

Other differences are:

The animal cell has centrioles, while the vegetable cell does not.

Plasmodium, chromoplasts, and glyoxysomes are present in the vegetable cell but not in the animal cell.

3 0
2 years ago
How does creativity affect scientific work?
SCORPION-xisa [38]
It allows scientists to explore new explanations for observations.
7 0
3 years ago
Read 2 more answers
If a vaccine protects you for most of your life against a particular pathogen, why do you need a new flu shot every year? A. Inf
Assoli18 [71]

Answer:

If you got a flu shot this year, next year you'll need it again.

Explanation:

This is because the virus changes, usually rendering the previous year's vaccine partly or totally useless. hope this helps you :)

4 0
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