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ss7ja [257]
3 years ago
14

Explain how some substances cross the cell membrane by facilitated diffusion?

Biology
1 answer:
Westkost [7]3 years ago
6 0
The substance is guided through a protein embedded in the membrane from high to low concentration since this not considered as active.
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Pls an answer asap!!
Paul [167]

Answer:

B

Explanation:

4 0
2 years ago
The causative agents for gas gangrene and tetanus are:
jonny [76]

Answer:

Obligate anaerobes (Ans. D)

Explanation:

Gas gangrene is a bacterial infection which produces tissue gas in gangrene. This is caused by bacteria <em>Clostridium perfringens</em><em>. Clostridium perfringens</em> is a gram-positive, obligate anaerobic bacterium of the <em>Clostridium</em> genus. It is found in environmental sources & commonly found in raw meat and poultry.

Tetanus is a bacterial disease infected by <em>Clostridium tetani</em>, is an obligate anaerobic spore-forming bacteria. It is found in soil, dust and intestinal tracts of animals. Transmission of tetanus is commonly by contaminated wounds.

4 0
3 years ago
16. Create the complimentary strand for the DNA strand below. Make sure to label the parts and direction of
Liono4ka [1.6K]

Answer:

Um????????????????? I'm lost

Explanation: so very sorry

3 0
2 years ago
16. In which of the following situations are the phenotypes of F2 offspring expected to follow
scoundrel [369]

Answer:

C

Explanation:

The F2 offspring of a cross would follow the ratio of 9:3:3:1 only if the cross is a <u>dihybrid for two unlinked traits</u>.

There is nothing like a monohybrid cross for two traits. A cross involving two traits is a dihybrid cross. Hence, options a and b are out of the equation.

A dihybrid cross for two closely linked traits would produce F2 offspring in another ratio that is different from 9:3:3:1 depending on the linkage map.

<em>Hence, the correct option is</em><em> C</em><em>.</em>

5 0
2 years ago
Phagocytes have a pathogen-recognition system known as _____________ that leads to the recognition, containment, and destruction
bearhunter [10]
I'm pretty sure its, pattern recognition receptors.
5 0
3 years ago
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