Where is the first place digestion occurs?

2 answers:

4 0

Digestion begins in the mouth, well before food reaches the stomach. When we see, smell, taste, or even imagine a tasty meal, our salivary glands in front of the ear, under the tongue, and near the lower jaw begin making saliva (spit).

Strike441 [17]4 years ago

3 0

Answer:

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Why do 02 and CO2 pass through the plasma membrane?

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They are pumped through

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4 years ago

Sulfur has six electrons in its outermost energy level. In ionic bonding, it tends to do which of the following?

Feliz [49]

Answer:

take on two more electrons

Explanation

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2 years ago

What does the appearance of a blue or pink color in a thioglycollate tube mean?

ch4aika [34]

The appearance of a pink or blue color in a thioglycolate tube means that oxygen is present in that part of the tube. The different colors depend on which dye has been added. Pink color comes from resazurine, and blue is from methylene blue.

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3 years ago

A farmer is experimenting with pea plants. If the farmer crosses two pea plants with round and yellow peas (genotype RrYy) how m

seropon [69]

Answer:

The genotype of both parents is RrYy.

The possible types of gametes would be RY, Ry, rY, and ry.

The cross would produce offspring that can have one out of four types of phenotypes:

Round and yellow seeds (1 RRYY+ 2 RrYY +2 RRYy + 4 RrYy) = 9/16
Wrinkled and yellow seeds (3 rrYy) = 3/16
Round and green seeds (1 RRyy + 2 Rryy) = 3/16
Wrinkled and green seeds (rryy) = 1/16

Thus, one out of 16 offspring would have wrinkled and green seeds.

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3 years ago

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Which end of actin filaments within sarcomeres is associated with (attached to) Z discs?a) The plus end for all actin filamentsb

aliina [53]

Answer:

The plus end for all actin filaments.(Ans. A)

Explanation:

All three types of muscles (cardiac, smooth, and skeletal) utilize actin filaments to generate force which leads to cell contraction. Actin filaments is organized into sarcomeres which function as the fundamental unit of contraction.

Sarcomeres are approx 2.4 micro meter in length, and they are bounded at both end with the help of Z-disks. Plus end of the Z-disks are oriented with actin filaments and their minus ends to the direction of center of the sarcomeres. Z-disk consist an actin capping protein, which is known as cap-Z. Cap-Z helps to bind plus end of the actin filaments.

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4 years ago