Some photosynthetic organisms contain chloroplasts that lack photosystem II, yet are able to survive. The best way to detect the lack of photosystem II in these organisms would beto test for liberation of O2 in the light. (T/F)

Answers

Answer 1
Answer:

The statement 'the best way to detect the lack of photosystem II in these organisms would be to test for the liberation of O2 in the light' is TRUE.

Photosynthesis has two types of reactions: initial light-dependent reactions and late light-independent reactions.

The photosystem II (PSII) is the first protein complex responsible for the initial light-dependent reactions.

This photosystem captures sunlight to catalyze the generation of an electrochemical transmembrane proton (H+)gradient, which is subsequently used to synthesize ATP.

Photosystem II produces molecular oxygen (O2) by oxidizing two molecules of water (H2O) into one molecule of oxygen.

In conclusion, the statement 'the best way to detect the lack of photosystem II in these organisms would be to test for the liberation of O2 in the light' is TRUE.

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Answer 2
Answer:

Answer:

True.

Explanation:

Photosystem II is a protein complex that is located in the thylakoid membrane of plants with a significant role in light-dependent reactions of photosynthesis.

Photons of sunlight are absorbed by photosystem II and electrons within the system consequently become excited. As a result, electrons are replaced by the water, and hydrogen ions and molecular oxygen are formed.


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How are atoms in a compound held together?

Unlike mammals, fish

Answers

In the question re-posed as one of the answers the best solution is option D That is to say Unlike mammals fish ... utilize gills for gas exchangeIn the question re-posed as one of the answers the best solution is option D

the fish release gas  so that can go up above the water breath and then go back into the water

Smallest of the terrestrial planets

Answers

The smallest of the terrestrial planets is Mercury. It is the closest planet to the Sun and has a diameter of about 4,879 kilometers.

Which of the following is NOT a characteristic that all living things share? A) a cellular organization B) using energy C) movement D) reproduction

Answers

The characteristics that is not shared in all living things is movement. The correct option is C.

While it is a property frequently linked to a variety of living things, not all living creatures have the ability to move.

There are many examples of living things that move very little or not at all over the course of their existence. For instance, plants are living things that often move very little or stay planted in one location. It's possible for microorganisms like bacteria or fungi to move very little.

However, all livingbeings also share the other traits listed in the choices.

All living things are formed of cells, which serve as the basic structural and functional units of life. This is referred to as a cellular organisation.

Thus, the correct option is C.

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A cellular organization is the characteristics that not all living things share. This is because most of the unicellular organisms don’t have cellular organization.  

The part of cell and how these individual parts are arranged within the cell makes up the cellular organization.

Further Explanation

Cell is the basic unit of life and it has two types.  

  • Prokaryotic cells (bacteria)
  • Eukaryotic cells (protozoa, fungi, plants, animals, algae)

Prokaryotic cells are cells with smaller sizes with a greater surface to volume ratio, which implies that nutrients can get to any part within the cell interior easily. Prokaryotic cells does not have nucleus. They are unicellular (single cell organisms) and they include bacteria and archaea. However, archaea lives in environments that are extreme.

Eukaryotic cells are cells with larger sizes, which means lesser-surface to volume ration and there is no easy or rapid diffuse of nutrients. In eukaryotic cells, a specialized internal organelles put together in an organized manner is required to metabolism to take place, to generate energy and moves chemical within the cell. Eukaryotic also refers to organism that has eukaryotic cell. Cells shapes and sizes vary.  

The Basic cellular components of cells include:

  1. Plasma membrane: refers to the cell membrane that separate the cell inferior from its surrounding environment. It is made up of proteins, carbohydrates and phospholipid bilayer.  
  2. Cytoplasm: it includes all the components within the plasma apart from the nucleus.
  3. DNA: called deoxyribonucleic acid. It is the genetic material. Eukaryotic cells have many DNA molecules. They are located in the nucleus and mitochondria. A prokaryotic cell has a single DNA molecule and it has no boundary with the cytoplasm.
  4. Ribosomes: it refers to the sites where proteins are synthesized.

KEYWORDS:

  • cellular organization
  • characteristics of living things
  • cells
  • Prokaryotic cells
  • Eukaryotic cells

Which is a key component of the energy molecule ATP? sodiumphosphorus

chlorine

sulfur

Answers

Phosphorus is a key component of the energy molecule ATP.

What does ATP stands for?

ATP stands for adenosine triphosphate, and it is a molecule that carries energy within cells.

The energy is stored in the phosphate bonds of ATP, and when these bonds are broken, energy is released for cellular processes such as muscle contractions, protein synthesis, and nerve impulses. The phosphorus atom is what makes the phosphate bond in ATP so high in energy, and this is what allows ATP to be such an effective energy carrier within cells.

The phosphate groups are linked by high-energy bonds, and when these bonds are broken, energy is released that can be used for various cellular processes.

The breakdown of ATP into ADP (adenosine diphosphate) and inorganic phosphate releases energy, while the formation of ATP from ADP and phosphate requires energy. The energy stored in ATP is used for various cellular processes such as muscle contraction, protein synthesis, and active transport across cell membranes.

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phosphorus 
ATP stands for adenosine triphosphate which means that there are 3 phosphates in each ATP. You'll learn later something called ADP which is adenosine diphosphate meaning 2 phosphates.

What an animal uses for food is part of its:a. habitat.
b. niche.
c. competition.
d. None of these answers is correct.

Answers

What an animal uses for food is part of its: (b) niche.

An organism's niche can be defined as its specific role and position in its environment, including how it obtains food, where it lives, its interactions with other species, and its overall way of life. It encompasses the resources the animal uses for food, its habitat, and its interactions with other organisms.

Food is any substance that provides nourishment and sustenance to living organisms, enabling them to grow, maintain their health, and carry out their physiological functions. It is essential for the survival and proper functioning of all living beings.

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The answer is b)

The niche is the job the animal does in it's habitat to contribute to the habitat.

TRUE/FALSE. Whenever ATP is produced by a chemical reaction some energy is lost into the surroundings as heat.

Answers

The statement 'Whenever ATP is produced by a chemical reaction some energy is lost into the surroundings as heat' is True because ATP (Adenosine Triphosphate) is the main molecule used for energy storage in cells, and the process of creating ATP from other molecules does result in some energy being lost in the form of heat.

This is due to the law of conservation of energy, which states that energy can be transferred and transformed, but cannot be created or destroyed.
Whenever ATP is produced by a chemical reaction some energy is lost into the surroundings as heat. This is because the production of ATP is not a 100% efficient process and some energy is always lost as heat during the conversion of energy from one form to another.

This is in accordance with the second law of thermodynamics which states that in any energy transfer or transformation, some energy is always lost as heat.

Therefore, the production of ATP is always accompanied by the release of some energy as heat into the surroundings.

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Answer: True.

Some ATP produced by chemical reaction is lost into the surroundings as heat