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liberstina [14]
4 years ago
11

Active and passive transport of solutes across a membrane typically differ in which of the following ways? A] Active transport i

s usually against the concentration gradient of the solute, whereas passive transport is always down the concentration gradient of the solute.
B] Active transport always involves the utilization of cellular energy, whereas passive transport does not require cellular energy.
C] Active transport always requires the use of transport proteins, but passive transport can sometimes be accomplished without a protein.
D] The first and second choices are correct.
E] The first, second, and third choices are all correct.
Biology
1 answer:
olya-2409 [2.1K]4 years ago
3 0
Out of the choices given, active and passive transport of solutes across a membrane typically differ because active transport always involves the utilization of cellular energy, whereas passive transport does not require cellular energy. The correct answer is B. 
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Can you answer this?
maxonik [38]

Answer:

possibly the second one

Explanation:

not sure

3 0
3 years ago
Bryophytes never formedforests (mats maybe, but not forests)
podryga [215]

Answer:

C) they lack lignified vascular tissue. ( Since they do not have vascular tissues, they are not able to develop vertically like the trees we know.)

Explanation:

A) Plants do not have "sperm". They have sporophytes or gametophytes.

B) No specific parasitic bacteria of bryophytes are known.

D) In fact, they have. Although they require water for their reproduction, some species of bryophytes are found in deserts.

E) Rhizoids are not weak, otherwise they would not have the ability to keep bryophytes attached (mosses).

5 0
4 years ago
The thoracic cavity is ________to the abdominopelvic cavity. Superior ... If an incision cuts the heart into right and left part
marissa [1.9K]

Answer:

The thoracic cavity is "Superior" to the abdominopelvic cavity. Superior ... If an incision cuts the heart into right and left parts, a "Sagittal" plane of section was used

Explanation:

The thoracic cavity is mainly located in the chest region which also have neck and the diaphragm in it. In the thoracic cage the thoracic organs are safely placed. The thoracic cavity lies above the abdominopelvic region. The sagittal plane is the vertical plane which runs from the front to back of the body. The sagittal plane helps in splitting of two equal halves like the left and right one.

3 0
3 years ago
What prevents bacteria and materials in the large intestine from flowing backward into the ileum of the small intestine?
11111nata11111 [884]
The ileocecal valve prevent the back flow of materials from the large intestine to the ileum of the small intestine.
8 0
3 years ago
What are the possible genotypes for a person with type A blood or type B, or type AB or type O?
postnew [5]

Answer:

The ABO blood group is the case of co-dominance or multiple allelism. Co-dominance may be defined as a non Mendelian inheritance in which both the alleles can express themselves in the heterozygous condition.

The person with blood type A has two possible genotypes with IA IA or IA i.

The person with blood type B has two possible genotype with IB IB or IBi.

The person with blood type has genotype of IAIB.

The person with blood type O has possible genotype is ii.

Thus, there are total six possible genotype of blood group exist in human population.

6 0
3 years ago
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