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arlik [135]
2 years ago
5

Ingested nutrients spend at least ______ hours in the small intestine as chemical digestion and absorption are completed.

Biology
2 answers:
pychu [463]2 years ago
5 0

Given: Ingested nutrients spend at least ______ hours in the small intestine as chemical digestion and absorption are completed.

Answer:

12 hours

Explanation:

Digestion is a form of catabolism or breaking down of substances that involves two separate processes: mechanical digestion and chemical digestion. Mechanical digestion involves physically breaking down food substances into smaller particles to more efficiently undergo chemical digestion.

Arte-miy333 [17]2 years ago
3 0

Ingested nutrients spend at least 12 hours in the small intestine as chemical digestion and absorption are completed.

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10) What is required for an organism to become a fossil?
daser333 [38]

Answer:

B

Explanation:

It must <em>always </em>be buried quickly that's the whole point.

8 0
3 years ago
Read 2 more answers
Place the following events of muscle excitation in the correct order.
svetlana [45]

An motion potential in the presynaptic cell activates calcium channels. Ca+ triggers the discharge of Acetylcholine through exocytosis. Ach binds its receptors in the postsynaptic membrane, opening Na+ channels. The Order is 4, 3, 5, 1, 2.

The principal frightened system generates an motion potential that travels to the goal activating the calcium channels ⇒ event (4)

Calcium triggers vesicles fusion to the presynaptic membrane. By exocytosis, vesicles release the neurotransmitter -Acetylcholine- into the synaptic space ⇒ event (3)

Once there, Ach binds to its receptors on the postsynaptic membrane of the skeletal muscle fiber, causing ion channels to open ⇒ event (5)

Positively charged sodium ions move the membrane to get into the muscle fiber (sarcoplasm) and potassium leaves the cell ⇒ event (1)

The distinction in charges, resulting from these ions' transport, positively charges the fiber membrane. The postsynaptic cell depolarizes ⇒ Event (2)

The motion potential enters the t-tubules depolarizing the internal part of the muscle fiber. Contraction initiates while the motion potential depolarizes the internal part of the muscle fiber. Calcium channels spark off in the T tubules membrane, releasing calcium into the sarcolemma.

At this point, the muscle is at rest, and the tropomyosin is inhibiting the appeal strengths between myosin and actin filaments. Tropomyosin is obstructing binding sites for myosin on the skinny filament.

When calcium enters the sarcolemma, it binds to troponin C, and troponin T alters the tropomyosin role through shifting it and unblocking the binding sites.

Myosin heads be a part of the uncovered actin-binding points forming move-bridges, and whilst doing so, ATP turns into ADP and inorganic phosphate, that's released.

Myofilaments slide impulsed through chemical energy accumulated in myosin heads, generating a strength stroke. The strength stroke initiates while the myosin move-bridge binds to actin. As they slide, ADP molecules are released. A new ATP hyperlinks to myosin heads and breaks the bindings to the actin filament.

Then ATP splits into ADP and phosphate, and the energy produced is gathered in the myosin heads, which begins offevolved a new binding cycle to actin.

Finally, Z-bands are pulled towards every other, and the sarcomere and the I-band get shorter, generating muscle fiber contraction.

According to those steps, the appropriate order of activities is 4, 3, 5, 1, 2.

To learn more about Acetylcholine, click here:

brainly.com/question/13821381

#SPJ4

7 0
11 months ago
Your employer let’s you know that the safety data sheets are located on an computer in his office. Does this comply with employe
oksian1 [2.3K]

Answer:

The answer to the enunciated: your employer lets you know that the safety data sheets are located on a computer in his office. Does this comply with employer responsibilities? is:- This act doesn't comply with the responsibilities of the employer.

Explanation:

The responsibilities of the employer are to guide the employed about the things in the company, of the sentence you can deduct two sceneries:

- The employed is in training in the company, the reason why the employer is saying to him where are the safety data sheets, but the correct would be to show the sheets and how function them.

- The safety data sheets are reserved for people with a high rank in the company, the reason why the employer must not say it to the employed.

8 0
3 years ago
can somebody tell me Can two organism be in the same order but be in different families? can they be in different phylums
m_a_m_a [10]
<span>Yes they can. How to identify them is that they can be more similar than 2 organisms in different classes, be in the same class,and have the same species identifier. </span>
8 0
3 years ago
What are the three primary factors that affect the rate of photosynthesis
kykrilka [37]

Answer:

Light; Carbon dioxide; Temperature

Explanation:

Light; There would be no photosynthesis if light is not present. The rate of photosynthesis increases with light intensity up to the certain limit that plant needs for photosynthesis.

Carbon dioxide; Without carbon dioxide photosynthesis is not possible. The rate of photosynthesis increases with carbon dioxide level up to the certain limit that plant needs for photosynthesis.

Temperature; Too high temperature will denature the plant photosynthetic enzymes and photosynthesis will be too slow at low temperature

5 0
3 years ago
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