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Monica [59]
3 years ago
12

14. The average brain weighs about

Biology
2 answers:
andrew11 [14]3 years ago
8 0

Answer:

A. three pounds

Explanation:

it definitely doesn't weigh ounces :)

irga5000 [103]3 years ago
8 0

Answer:

B. three pounds

Explanation:

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Ouabain is a specific inhibitor of the active transport of sodium ions out of the cell and is therefore a valuable tool in studi
Kay [80]

Answer:

1. Part A: No

2. Part B: Yes

3: Part C : Yes

4: Part D : No

Explanation:

1) Part A: Facilitated diffusion of glucose into a muscle cell:

No; sodium ion co - transport is required for active transport of glucose but not for facilitated diffusion of glucose

2) Part B: Active transport of dietary phenylalanine across the intestinal mucosa:

Yes; co - transport of sodium ions drives the inward movement of amino acids and can only occur if sodium ions are actively pumped back out again.

3) Part C: Uptake of potassium ions by red blood cells:

Yes; uptake of potassium ions can occur only via a pump that couples the inward pumping of potassium ions to the outward pumping of sodium ions.

4) Part D: Active uptake of lactose by the bacteria in your intestine

No; active uptake of sugars and amino acids in bacteria is driven by a proton gradient.

3 0
3 years ago
The cells of a puppy and the cells of a dog are the same size. Why is a dog larger?
Crazy boy [7]

Answer:

The Dog is has much more cells because it's bigger.

Explanation:

when a puppy grows up to be a dog, it gains more cells because it GROWS up and becomes bigger than the puppy's original size.

7 0
3 years ago
Please select the word from the list that best fits the definition what chemical weathering called oxidation causes
Tju [1.3M]
A. rust because rust is the only chemical weathering listed in the answers that i know of 
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5 0
3 years ago
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The benefit of measuring the initial rate of a reaction, V0, is that early in the course of the reaction, A) Km is the substrate
aleksandr82 [10.1K]

Answer:

Rate of product formation is linear and [S] has not been lowered significantly.

Explanation:

The rate of enzyme-catalyzed reactions is affected by several factors, the contraction of substrates [S] is one of them. The substrate concentration keeps on changing as the reaction proceeds. This is why the reaction rate is measured at the initial stages of reactions when the substrate concentration [S] is much greater than the concentration of the enzyme. It is called the initial rate or initial velocity.

Under the conditions of higher substrate concentration and relatively much lower enzyme concentrations, only a few molecules of substrates are being converted into product. At a relatively higher substrate concentration, the rate of product formation increases linearly.

4 0
3 years ago
Which of the following is(are) non-technological ways of improving air quality?
lesantik [10]

Answer:

I think that the answer would be D

8 0
3 years ago
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