BIOLOGY HIGH SCHOOL

Which of the following is a negative effect of algal blooms on the environment?a. transport of carbon to the bottom of the ocean
b. production of oxygen
c. consumption of water’s oxygen
d. large source of energy

Answers

Answer 1
Answer:

The correct answer is c. consumption of water's oxygen

Excessive growth of algae in the water bodies due to presence of nitrogen or   phosphorus from the nearby is called algae blooms. The overgrowth of algae blocks sunlight for submerged plants. Algae bloom may also release toxins in the ponds, lakes. On the death of algae, water dissolved oxygen gets depleted in their decomposition. Due to lack of oxygen other aquatic life unable to survive.

Answer 2
Answer:

c would be your answer i just took the test

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Energy is released from ATP when

Answers

Answer: The correct answer for the blank is-

Energy is released from ATP ( adenosine triphosphate) when high energy phosphoanhydride bond ( present between two phosphate) is broken down or hydrolyzed.

This results in the formation of ADP ( adenosine diphosphate) and Pi ( inorganic phosphate).

Therefore, hydrolysis of ATP releases energy.

Energy is released from ATP when ATP undergoes hydrolysis.

ATP supplies energy for cellular activities by breaking off a phosphate group from its structure.

ATP is produced through the process of cellular respiration where food particles such as glucose are broken down to yield energy in the form of ATP.

Further Explanation

Cellular respiration

  • Cellular respiration is the process of by which living organisms use nutrients or food substances to generate energy in the form of ATP that is required to drive cellular processes.
  • Cellular respiration takes place in an organelle known as mitochondrion which is known as the powerhouse of the cell.
  • Cellular respiration takes place in three stages; glycolysis, Kreb's cycle and electron transport.  
  • Each step of cellular respiration yields ATP with the electron transport chain yielding the most number of ATP molecules, 34 ATP molecules.

ATP

  • ATP is the energy carrier molecule in the cells of living organisms. It is the usable form of energy by the cells in all living forms. Cells use ATP to drive all the cellular activities such as transport, excretion, growth and development, etc.
  • ATP is produced through the process of cellular respiration where food particles such as glucose are broken down to yield energy in the form of ATP.

Hydrolysis of ATP

  • ATP molecule is made up of a nucleotide base adenine attached to three phosphate groups.
  • Energy is contained in the bonds between the phosphates in an ATP molecule which is released when they are broken through the addition of water molecules a process called hydrolysis.
  • ATP powers cellular processes by transferring phosphates group in its structure to other molecules which releases energy required to drive the cellular activities.

Keywords: cellular respiration, ATP, energy  

Learn more about:  

Level: High school  

Subject: Biology  

Topic: Cellular respiration

Sub-topic: Hydrolysis ATP

How could a dog living now and a cat living thousands of years ago have in common

Answers

Answer:

They are both animals and both are mammals. I think that is what you mean.

Explanation:

What did Walter Fleming identify during cell division

Answers

Walter Fleming studied the process of cell division. He studied the division into two parts of chromosomes. This process is called mitosis. Walther Flemming - German physician, anatomist, zoologist, founder of cytogenetics.

After an RNA molecule is transcribed from a eukaryotic gene, what is removed and what is spliced together to produce an mRNA molecule with a continuous coding sequence?a) operators; promoters. b) exons; introns. c) silencers; enhancers.d) introns; exons. e) promoters; operators.

Answers

Answer:d)introns; exons

Explanation:Introns are the non-coding portion of the DNA. They do not code for a gene that can be expressed hence the need for them to be removed from the coding genes(Exons). The exons are then joined together after the introns have been removed to create a sequence of amino acids.

A group of scientists are studying the effects of different fertilizers on the growth of pea plants. They began their study with 10 pea plants. They gave each plant a different type of fertilizer and tracked their growth over a period of 2 months. What’s the independent variable in this experiment?

Answers

The answer is a type of fertilizer.

An independent variable is variable that is not affected in the experiment. It is what experimenter controls. On the other side, a dependent variable is called dependent because it depends on the independent variables. It is what is affected during the experiment.
In this case, the growth of pea plants depends on different types of fertilizer. So, the growth of pea plants is the dependent variable and different type of fertilizer is the independent variable.

Give an overview of four different symptoms in the human body that are caused by air pollution.

Answers

The four symptoms in the human body caused due to air pollution are:

•Itching and redness in eyes: This is a very common symptom easily seen in the people as an effect of air pollution. Redness and itching is caused due to inflammation in eyes.

•Coughing: Coughing is also caused due to inflammation in the bronchi. The mucosa secreted encounters some foreign materials and as a result of this coughing starts.

•Sneezing: The nasal passage has some mucosal secretion which when encounters the dust particles starts sneezing.

•Nausea: Some people feel nausea due to gases that causes air pollution

The four different symptoms in the human body that may be caused by air pollution are coughing, sneezing, nausea, redness and itching in eyes.

Further Explanation:

The addition of any harmful substance or gases mainly referred as pollutant into the air so as to change the natural composition of air is called air pollution. In this various solid, gases, or liquid particles releases in the environment. These pollutants are release into environment in the high concentration that affect health, aesthetic or economic effects.

The major symptoms of air pollution are:

  • Redness and itching in eyes: It is a very common symptom which can be easily visualize in individual as an effect of air pollution. Itching and redness is developed due to the swelling in eyes.
  • Sneezing: In this condition, the nasal passage consist mucosal secretion when the dust particle trap in the mucous an individual is start sneezing.
  • Coughing: This condition is developed due to swelling in the bronchi. The mucosa secreted in the bronchi encounters with foreign particles due to this coughing begins.
  • Nausea: The harmful gases release in the environment majorly causes nausea in some individual.

Learn More:

Answer Details:

Grade: High School

Subject: Biology

Chapter: Pollution

Keywords:

Nausea, coughing, sneezing, bronchi, mucosal secretion, redness, itching, gases, pollution, pollutant, solid, gases, liquid.
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