Answer:
Active uptake (which I think you mean active transport) is important when the concentration gradient is against that of a certain substance, so it doesn't cross the membrane through diffusion or passive transport. It is sometimes necessary if a substance needs to move across a membrane but can't do so due to electrical charge or that there is a substance on the other side of the membrane preventing diffusion.
Explanation:
Question: Which pituitary hormone causes liver cells to release somatomedins that increase the rate of uptake of amino acids by cells such as skeletal muscle fibers?
follicle-stimulating hormone
prolactin
thyroid-stimulating hormone
growth hormone
Answer:
growth hormone
Explanation:
Somatomedins are growth factors. The growth hormone makes the cells such as liver cells, skeletal muscles, bones, etc. to secrete the somatomedins. The somatomedins from the liver enter the bloodstream to reach the target cells. The somatomedins make the skeletal muscles, bones, etc. to absorb amino acids into the cells so as to facilitate protein synthesis. This growth factor also downregulates the breakdown of proteins. This is how growth hormone triggers the growth of muscles and soft tissues.
Humans usually have 46 chromosomes. Monkeys, chimps, or other organisms related closely to them: they have diploid number of 48 chromosomes.
(Future reference: Haploid means half, half the # of chromosomes in the nucleus. Diploids means duplicate, COMPLETE necessary set of chromosomes).
Hope it helps!! :)
D. secondary
Two groups: primary and secondary
The primary groups has stronger and deeper relationships with its member/s than secondary groups, many of which are superficial gatherings and surface dealings.
Primary groups include:
1. Family
2. Lover
<span>3. Husband/Wife </span>
Secondary groups:
1. Colleagues
2. Classmates
3. Friends
<span>4. Acquaintance</span>
