BIOLOGY HIGH SCHOOL

In what stage of cellular respiration is most of the carbon dioxide produced?

Answers

Answer 1
Answer:  The first carbon dioxide is produced in between glycolysis and the Krebs/citric acid cycle. 

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What could happen if the epiglottis fails to close correctly over the trachea when a person swallowsA. the person may experience heartburn
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Answers

If the epiglottis fails to close correctly, a person may choke. The epiglottis is a leaf-shaped flap made of elastic cartilage that covers the opening of the larynx and prevents food or liquids from entering it.

 Chocking may occur if the epiglottis fails to close, allowing food or liquids to enter the airway.

Estrogen is the hormone that is responsible for wider hips and other sexual characteristics.  Although men also have some estrogen, this hormone is much higher in women .

The answer to your questions are

1. B

2. B

Match the following vocabulary words.phalanges

1. knee bone or kneecap

2. bones in fingers and toes

3. inside bone in the lower

part of the arm
ulna
patella

Answers

Answer:

1) knee bone or kneecap=part of arm

2) bones in finger and toes =patella

3)inside bone in the lower=ulna

A frustrated mother with a 9-month-old baby comes to the clinic because her son is refusing all solid food. When talking with this mother, the nurse discovers the mother has struggled with a weight problem all her life, which she attributes to being forced to eat even when she was full. Not wanting to treat her child the same way, each time her son pushes food away with his tongue she believes that he doesn't want it. Which statement would be most appropriate for the nurse to say to this mother?

Answers

Answer:

The mother should know that her child at this age is not able to eat solid foods.

Explanation:

The mother needs to know that her child is not having or struggling with any weight problem and he/she can not eat solid foods. She needs to change her way of feeding him/her and start to prepare for him/her soft bread, cooked noodles, dairy foods..etc.

A factory is emitting large amounts of CFCs into the atmosphere. How might this affect people?

Answers

CFC (chlorofluorocarbon), including freon, is used as the aerosol propellant. An aerosol is a suspension in the gaseous form of solid or liquid particles. When these compounds reach the stratosphere, UV light affects them and they release chlorine atoms. Chlorine atoms are capable of breaking down ozone molecules. With fewer ozone molecules, the ozone layer becomes thinner and harmful UV light passes through it causing many health problems, such as skin cancer.

True or False. Action potential is generated and propagated along the sarcolemma and down the transverse tubules. Neurotransmitter is released and diffuses across the synaptic cleft and attaches to ACh receptors on the sarcolemma. Action potential triggers the release of Ca2 from the terminal cisternae of the sarcoplasmic reticulum.

Answers

Answer:

  • Option- True

Explanation:

  • Action potential is generated and propagated along the sarcolemma and down the transverse tubules. Neurotransmitter is released and diffuses across the synaptic cleft and attaches to ACh receptors on the sarcolemma. Action potential triggers the release of Ca2 from the terminal cisternae of the sarcoplasmic reticulum.

Answer:

False incorrect sequence.

Explanation:

1,Stimulus reaches the presynaptic  neuron membrane.

2.Calcium channels opens, and calcium ion diffuses into the neurone.

3.Vessicles of neurotransmitter acetycholine fused with the membrane of presynaptic neuron,   Neurotransmitter is released and diffuses across the synaptic cleft and attaches to ACh receptors on the sarcolemma.

4 The arrival of Action potential opens Na+ channels  in the sacolemma.

5, Na+ diffuses in causing depolarization  of the sacolemma,which  causes action potential to spreads along it length.

6. Action potential is generated and propagated along the sarcolemma and down the transverse tubules.

7. Action potential triggers the release of Ca2 from the terminal cisternae of the sarcoplasmic reticulum

8.Calciumion binds  to tropin, tropomyosin exposes the myosin-binding sites,cross-bridges is formed , and sacomere formed.

In the reaction B + KL + H, if an additional B is added, the result will be _____.

Answers

The question is not clear
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