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levacccp [35]
3 years ago
14

Who is the curve for inventing the first structure of DNA

Biology
1 answer:
Aneli [31]3 years ago
8 0
James Watson with Francis Crick invented first DNA structure.
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(Fill in the blank)
prisoha [69]

Answer:

Capsule

Explanation:

In many bacterial species, an extracellular layer composed of a polysaccharide especially a monosaccharide is produced around the cell wall of the bacteria. This extracellular layer is known as the slime layer or the capsule.

The capsule in bacteria serves many purposes like it protects the bacteria from the destruction by the white blood cell in the host, it enables the bacteria to adhere to the substrates and protect it.

In the plant group called the bryophytes also a capsule structure is present which grows in the sporophytic phase and encloses the spores, therefore, the capsule is considered the sporangium of the bryophytes.

Thus, the capsule is correct.

7 0
3 years ago
What membrane activities requires energy from atp hydrolysis?
NikAS [45]

Answer:

active transport, like Na + ions leaving the cell

Explanation:

The active transport requires an energy expenditure to transport the molecule from one side of the membrane to the other, but the active transport is the only one that can transport molecules against a concentration gradient, just as the diffusion facilitated the active transport is limited by the number of transport proteins present.

Two major categories of active, primary and secondary transport are of interest. The primary active transport uses energy (generally obtained from ATP hydrolysis), at the level of the same membrane protein producing a conformational change that results in the transport of a molecule through the protein.

The best known example is the Na + / K + pump. The Na + / K + pump performs a countertransport ("antyport") transports K + into the cell and Na + outside it, at the same time, spending on the ATP process.

The secondary active transport uses energy to establish a gradient across the cell membrane, and then uses that gradient to transport a molecule of interest against its concentration gradient.

8 0
4 years ago
Which statement describes adaptions necessary for plants to live on land? Check all that apply​
Alex777 [14]
Hm what’s the all that apply?
8 0
3 years ago
Why is it hotter in in a attic compared to a bacement
vlabodo [156]
Usually basements are cold and attics are hot 1 reason why is most times attics are small and basements are  big the bigger the more room for the hot air to spread out and ussually  attics are all stuffed up with boxes and stuff
7 0
4 years ago
Read 2 more answers
State the function of valves in veins?​
Maru [420]
Valves ensure blood flows toward your heart. Vein valves work to bring the blood that flowed down via arteries back up to your heart.
3 0
3 years ago
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