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ella [17]
3 years ago
14

All human cells contain 46 chromosomes; 23 from the dad and 23 from the mom.

Biology
1 answer:
Pachacha [2.7K]3 years ago
4 0
The answer would be true
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Chromosome can be described as ​
Monica [59]
...the DNA molecule that packaged into thread-like structures. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
5 0
2 years ago
Which of the following statements is the most likely explanation for plant withering due to leaky membranes in cold temperatures
podryga [215]

Answer:

C. H+ ions do not accumulate inside the thylakoid, so ATP synthase makes too little ATP.

Explanation:

Plant withering refers to the virtual death of plant cells due to lack of food. During the light-dependent reactions of photosynthesis, ATP needed for the synthesis of sugar (food) is created in the thylakoid membrane of the CHLOROPLAST of plant cells.

In the light-dependent reaction, hydrogen ions (H+) builds up/accumulate in the thylakoid lumen to create an electrochemical or proton gradient i.e. a difference in the concentration of H+ ions across the membrane. The hydrogen ions passes through a protein complex called ATP synthase, which forms ATP from ADP (by adding phosphate group), from the energy generated by the electrochemical gradient formed as a result of hydrogen in (H+) build up.

Hence, a plant that possess leaky membrane due to the cold temperature will likely wither because H+ ions are not able to accumulate inside the thylakoid causing a proton gradient, so ATP synthase makes too little ATP.

4 0
3 years ago
Why are animal rights important
Flauer [41]

Animal rights are important because animals at living creatures just like humans.

4 0
3 years ago
How does the tar from cigarette smoking disrupt oxygen distribution to the cells?
elena-14-01-66 [18.8K]
By tar, I think you mean nicotine. (I Hope). It affects the nerve signals that regulate breathing.
4 0
3 years ago
Help me!!!!!!!!!!afsjfjdbsbhxx
Bess [88]

Answer:

equivalent resistance = R1R2/R1+R2

= 30/13 ohm

V = IR

= 5×30/13

V = 150/13 ohm

8 0
3 years ago
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