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Nataliya [291]
3 years ago
9

The student is reviewing the aging process. One group of theories of aging involves the shortening of telomeres until a critical

minimal length is attained and then senescence ensues. These theories are known as:_________.
Biology
1 answer:
german3 years ago
7 0

Answer:

Explanation: Cellular theories

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Which statement about the starch debranching enzyme is correct?
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B) If two non functional copies are inherited, the pea will be wrinkeld.

Explanation:

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6 0
3 years ago
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Which statements describe functions of antibodies? Select two options.
vodomira [7]

Answer:

This question lacks options, options are:

A.They maintain the cell’s shape.

B.They regulate cell processes.

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D.They signal the immune system to destroy pathogens.

E.They speed up biochemical reactions.

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The correct answers are C and D.

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B cells and T cells use different biological weapons to attack the pathogen. The first secrete proteins called antibodies, which are distributed via the blood or the exposed surfaces to the environment, such as mucous. Antibodies are glycoproteins that circulate in the bloodstream looking for antigens that cause some type of damage to the body. Antibodies recognize and neutralize pathogens in a highly efficient way. Once the antibodies are produced, they remain circulating in the bloodstream for several months, which generates immunity for a long period of time to a certain antigen, in other words, they are capable of recognizing other molecules (antigens) in a very specific way and forming stable complexes with them (immune complexes). Its appearance in plasma is part of the adaptive immune response, in what is known as a specific humoral response, constituting a very effective defense against pathogens.

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3 years ago
Explain the processes that take place in the stroma including the reactants going in and the products produced from these proces
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Stroma, in a biological explanation, the fluid in between grana, where carbohydrate formation reactions occur in the chloroplast of plant cells photosynthesizing.

Explanation:

Part A

 In the bright daylight, the Calvin cycle happens indoors in the stroma. throughout the Calvin cycle, the results  ATP and NADPH are conventional convert molecules of carbonic acid gas into high-energy sugars.

Part B

In the darkness, the Calvin cycle conjointly occurs within the stroma. through the Calvin cycle, the products ATP and NADPH are used to change molecules of CO2 into high-energy sugars.

Part C

There will be a decrease in the products ATP and NADPH if the plants are unbroken within the dark for a protracted time and also the Calvin cycle can't be sustained.

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3 years ago
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