<u>Answer:</u>
Facilitated diffusion is a process in which movement of the particles is facilitated in and out of the cell membrane by using two ways:
Channel protein
Carrier protein
<u>Explanation:</u>
Protein channels transport only water and certain ions by forming particular pores or passageways across the cell membrane. These channels are very selective and only open their gates when they receive a particular signal.
Proteins carriers which are called uniporters transport amino acids and sugar from higher concentration to lower concentration.
From the punnet square it can be identified that,
R- dominant allele(red)
r- recessive allele(white)
Rr- heterozygous red
RR-homozygous red
rr-homozygous white
It is a monohybrid cross because it is a cross between paternal and maternal genotypes possessing a pair of contrast characters.
Answer:
The tilt of Earth's axis affects the angle of sunlight on Earths surface.
Explanation:
Answer:
hopes it helps
Explanation:
In glycolysis, glucose molecule is converted into pyruvate molecules .
It can't be cellular respiration because it starts always with glucose i.e glycolysis. But here it is the process after glycolysis (starting from pyruvate) and changing into lactic acid. It's an aerobic respiration called as lactic acid fermentation.
Answer:
The beneficial role of antibiotics in the human body is given because they produce rupture the cell wall or prevent protein synthesis in bacteria.
Explanation:
Antibiotics are a group of drugs that fight bacteria, eliminating them, to cure infectious diseases.
The mechanisms of action of antibiotics aim to break the bacterial protection or interfere with their vital functions to make them unviable:
- Destruction of the bacterial wall or membrane.
- Interference with protein synthesis.
- Inhibition of the synthesis of nucleic acids.
In general, the effects of antibiotics on bacteria are to rupture the cell wall or prevent protein synthesis. Through these mechanisms, antibiotics eliminate and prevent the reproduction of pathogenic bacteria, thus eliminating the infections they produce.
The other options are not correct because:
<em> a. Breaking down damaging toxins created by bacteria is an anti-toxin function.</em>
<em> b. Antibiotics do not increase the number of white blood cells in the blood. </em>
<em> d. Reduction of the effects of fever, swelling, and inflammation in the body is a function of antipyretics and anti-inflammatories.</em>
