BIOLOGY HIGH SCHOOL

Light alerts the biological clock to slow down the secretion of which hormone that promotes sleep

Answers

Answer 1
Answer: Light alerts the biological clock to slow down the secretion of melatonin hormone that promotes sleep. Melatonin hormone is a hormone that is produced by the pineal gland in animals and regulates sleep and wakefulness. . The hormone is used to regulate night and day cycles or sleep-wake cycles, darkness causes the body to produce more melatonin, which signals the body to prepare for sleep. Light decreases melatonin production and signals the body to prepare being awake. 

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A new drug is discovered for the treatment of thyroid cancer. Which is a logical next step of the scientific method after the discovery has been successfully tested?

Answers

clinical trials would be the next steps
to go to the clinic, or hospital would be the next step of what to do.
Hope that this helps you! =)

Why wont Neon bond with anything else on the periodic table of elements?

Answers

because it belongs to group 0 the noble gases. Neon has a complete outer shell, a stable electronic configuration, thus it can exist as a monoatomic gas, and as it cannot form ions it cannot bond with a metal. It is unreactive

I need some notes about cell membrane

Answers

Answer:Cell membrane

Explanation:Forms a boundary between a cell and the surrounding environment and controls the passage of materials into and out of the cell.

Answer:

Cell Membrane (These are from my personal Biology Notes)-

Explanation:

Found in all cells (FIAC)

Selectivity permeable

Embedded with proteins

Regulates what enters or exits the cell

Phospholipid bilayer

Polar: head is hydrophilic (Likes water)

Nonpolar: tail; hydrophilic

Why do saturated fatty acids have straight structures, while unsaturated fatty acids have bent structures? A. Saturated fatty acids have a larger mass.
B. Saturated fatty acids contain many more bonds.
C. Saturated fatty acids have single carbon-to-carbon bonds.
D. Saturated fatty acids contain more carbon atoms.

Answers

It's C. Saturated fatty acids have single carbon-to-carbon bonds. I just took the quiz

B. Saturated fatty acids contain many more bonds. Is the correct answer

Substances that enter the cell without the expense of cellular ATP, but are too large to directly pass through the membrane, use ________________________ in order to gain access to the inside of the cell?

Answers

A substance that enters the cell without the expense of cellular ATP, but are too large to directly pass through the membrane, use membrane protein in order to gain access to the inside of the cell.  

Further Explanation:

The plasma membrane is an outer boundary of the cell. It is composed of phospholipids and proteins. It is also called selectively permeable membrane because it allows only selective substances to cross. Transport across the membrane can be active and passive transport. Active transport requires energy for the movement of substances, whereas in passive transport the molecules move across the membrane without using energy. Water can freely move inside the cell with the help of aquaporins. Also, the osmotic gradient set plays a vital role in the transportation of water.

Glucose and electrolytes require energy to be transported. Facilitated diffusion is a passive movement of the molecules, across the “plasma membrane”, through the aid of the trans membrane protein or substrate-specific protein. This is used by the molecules that are not able to cross the phospholipid layer freely. But, it doesn’t need energy for the transportation process. Glucose is transported by this method.

Learn More:

  1. Learn more about the fibrous skeleton of the heart brainly.com/question/7301375
  2. Learn more about blood cells bring oxygen and take carbon dioxide away brainly.com/question/1213217
  3. Learn more about the system prepares food for absorption into the bloodstream brainly.com/question/310282

 

Answer Details:

Grade: High School

Subject: Biology

Chapter: Cell Biology

Keywords:

Glucose, transported, facilitated diffusion, water, transportation, permeable membrane, phospholipid, composed, plasma membrane, osmotic gradient.

Examine the image. Then use the drop-down menu to choose the correct order for the relative age of the features from oldest to youngest -answer “b,w,e,q,k

Answers

Answer:

b w e q k

Explanation:

2 answer

Answer: B, W, E, Q, K

Explanation:
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