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bogdanovich [222]
3 years ago
5

Anti-malarial drugs kill the parasites in the blood but they do not cure the disease. That because;

Biology
1 answer:
Vanyuwa [196]3 years ago
8 0

Answer:

c) The blood not the place to fight Malaria

Explanation:

This wording is weird but I think it is C. Anti-malarial drugs are not for curing the disease because they only kill the parasites in the blood. Malaria develops in the blood stage and the liver. The anti-malarial drug kills the blood-stages of the parasite but not the liver ones. The liver ones can reinfect the blood and cause malaria again.

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How do CAM plants differ from C3 and C4
algol13

Answer:

C3 photosynthesis produces a three-carbon compound via the Calvin cycle while C4 photosynthesis makes an intermediate four-carbon compound that splits into a three-carbon compound for the Calvin cycle. Plants that use CAM photosynthesis gather sunlight during the day and fix carbon dioxide molecules at night.

Explanation:

3 0
4 years ago
Why does a protein not function after it has been denatured?
ch4aika [34]

Answer:

d. The normal bonding between the R groups has been disturbed and the protein loses its normal shape.

Explanation:

Denaturation is the loss of function of a protein due to its altered three-dimensional structure. To function properly, proteins must be present in a properly folded form. The three-dimensional structure and protein folding are mediated by weak interactions such as hydrogen bonds, electrostatic interactions, etc. An abrupt increase in temperature, pH or presence of some organic solvents causes protein denaturation.

The organic solvents target the hydrophobic interactions between the R groups of amino acids that make the core of globular protein stable. Extreme levels of pH target the net charge on proteins and thereby results in electrostatic repulsion between closely placed amino acids. Extremes of pH also disrupt the hydrogen bonding between the R groups of the amino acids. The effect is the loss of the three-dimensional structure of proteins, their partial or complete unfolding and loss of function.

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3 years ago
What is a System and What are the Interacting Components of a system?
Usimov [2.4K]

Answer: A system is a group of interrelated interacting, or interdependent parts that for a complex whole. A system is a group of interrelated interacting, or interdependent parts that for a complex whole.

Explanation:

7 0
3 years ago
Adenine is the last nucleotide at the 3' end of one strand of DNA. It is base-paired with thymine on the other DNA strand. Which
Jlenok [28]

Answer:

The two nucleotides are located on DNA strands that are parallel to each other

Explanation:

Deoxyribonucleic acid, commonly known as DNA, is one of the two types of nucleic acids. It is a molecule composed of a nitrogenous base, pentose sugar and a phosphate group. According to the information given in this question, Adenine is the last nucleotide at the 3' end of one strand of DNA. The following are factual about the nucleotide;

- Since DNA is a double-stranded molecule, the Adenine nucleotide will be base-paired with Thymine nucleotide (complementary base pairing) on the other DNA strand.

- Since complementary DNA strands are opposite to one another, this means that if the adenine has an unlinked 3' hydroxyl group, then the thymine must have an unlinked 5' phosphate group.

- Nucleotides in a DNA strand are joined to one another via a covalent bond called PHOSPHODIESTER BOND. Hence, the adenine and the thymine are each bonded to the previous nucleotide in the strand by a phosphodiester bond.

- In the complementary base pairing between two nucleotide bases, there are two hydrogen bonds between the adenine and thymine nitrogenous bases i.e. A=T.

- DNA strands that make up a molecule are complementary and opposite to one another, hence, they are said to be ANTIPARALLEL.

7 0
3 years ago
At which stage of mitosis are chromosomes usually photographed in the preparation of a karyotype?
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Hi cupcake :wink: i'm jk

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