BIOLOGY HIGH SCHOOL

The combustion of glucose ultimately involves the transfer of electrons to oxygen (O2). In biological systems, this takes place without a large increase in temperature. Which of the following statements about this process in biological systems is true? 1) Coupled oxidation-reduction reactions occur with electrons being passed to intermediate electron carriers. 2) The process involves the transfer of 12 pairs of electrons to oxygen. 3) The transfer of electrons from intermediate electron carriers to molecular oxygen is catalyzed by the electron transport chain. 4) Though the process is a controlled oxidation, some energy is lost.

Answers

Answer 1
Answer: 3) The transfer of electrons from intermediate electron carriers to molecular oxygen is catalyzed by the

The photosynthetic mechanism of the plants make it possible for them to have and create food in order to survive but as they make this "food" which is glucose, the by-product oxygen is created which hence is beneficial to all life forms of heterotrophs. 

Related Questions

Minerals are micronutrients required by the body for various key functions. The mineral _____ (a. calcium; b. iron; c. sodium) is required to carry oxygen in the blood to all body tissues, and _____ (a. vegetable oil; b. red meat; c. milk) is a rich source of this mineral.Minerals are micronutrients required by the body for various key functions. The mineral is required to carry oxygen in the blood to all body tissues, and is a rich source of this mineral.
Which of the following statements about antibodies is false?(A) Antibodies are produced by different combinations of soluble proteins in the blood called complement. (B) When antibodies bind to a bacterial cell, it may keep that cell from adhering to host cells. (C) The specific receptors on T cells that would interact with a specific antigen are the same shape as antibodies that will interact with that antigen. (D) By binding to antigens, antibodies mark those antigens for destruction by macrophages. (E) By binding to an invader, antibodies attract proteins that lyse the target membrane.
Describe the benefits of physical activity for three different body systems
A DNA segment is changed from -AATTAG- to -AAATAG-. This is a_______.
Which of the following organic compounds is the main source of energy for living things?a.carbohydratesc.nucleic acidsb.lipidsd.proteins

Complete each statement by writing the correct term or phrase in the space provided

Answers

·     A substrate is a substance on which an enzyme acts during the chemical reaction.
·     An organic compound with a ratio of one carbon atom to two hydrogen atoms and to on oxygen atom is monosaccharide.
·     Glucose is a sugar that is a major source of energy in cells.
·     A lipid is an organic compound that is not soluble in water.
·     A protein is a long chain of amino acids.
·     Subunits of DNA and RNA are called nucleotides.
·     DNA is a nucleic acid that contains genetic information.

What are the spiral arms of the Milky Way made of? A. Older stars and comets
B. Variable stars
C. Asteroids and comets
D. Younger stars and gaseous nebulae

Answers

The spiral arms of the Milky Way are made of younger stars and gaseous nebulae. There are four spiral arms within the Milky Way galactic disc that start at the galaxy's center. The sun is five to 30 parsecs away from the center of the galactic disk.

younger stars and gaseous nebulae d is the corrcet answer

How do heavy sediment deposits affect waterways?

Answers

The deposition of heavy sediment can significantly diminish the water quality and aquatic habitat.  The sentiment in the water can reduce the sunlight that reaches the floor of the waterway, affecting animal and plant life. For example, photosynthesis may be less effective due to the decreased sunlight and the gills of fish may get clogged from the sediment.
Sediment can cloud thewater, which in turn can negativelyimpactthe plants and animals.

One way that mining for mineral resources damages land is by?A. adding greenhouse gases to the environment
B. depleting the world's ozone
C. causing salinization
D. increasing soil erosion

Answers

The correct answer is D. Increasing soil erosion

Explanation:

Mining refers to the process of extracting minerals such as coal, chalk, limestone, etc that are usually placed on underground deposits. Because of this, mining often involves excavation, although other methods use substances and chemicals to extract the mineral. In all of this cases, the natural properties of the soil are negatively affected as vegetation is often removed along with multiple soil layers, this leads to soil erosion due to the damage in the soil and the lack of vegetation that make the soi dry and in most case infertile. Therefore, one way mining for mineral resources damages land is by increasing soil erosion.
Well it does increase soil erosion.

Please help this is for 20 points!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!24. Name two types of evidence used to support the theory of evolution. Explain how scientists use each type of evidence to provide support for evolution. Give one example of each.

25. What is a cladogram? Explain how a scientist would use DNA or protein sequences taken from three different organisms to construct a cladogram.

Answers

molecular evidence similar proteins and genes found in related species 
fossil evidence because the records of fossils over time change and since there is record there evidence of a change 
a cladogram is used to show the relationship between organism the closer they are together then the closer they are to being related one another

Which statement correctly describes the difference between meiosis I andmeiosis II?

A) Meiosis I brings together sister chromatids, and meiosis II separates them.
B) Meiosis I separates tetrads, and meiosis II separates sister chromatids.
C) Meiosis I separates sister chromatids, and meiosis II separates tetrads.

Answers

for what i know the answer is B

B) Meiosis I separates tetrads, and meiosis II separates sister chromatids.
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