1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aalyn [17]
3 years ago
8

Statements accurately describe cells?

Biology
1 answer:
katen-ka-za [31]3 years ago
7 0

Answer:

I don't see any statement you posted in. But i can give you a clue about it if it help: Cell theory states that living things are composed of one or more cells, that the cell is the basic unit of life, and that cells arise from existing cells

Explanation:

You might be interested in
Cuban tree frogs eat smaller native frogs in the Florida Everglades. What does this scenario represent?
adoni [48]
The answer is C, loss of biodiversity due to an invasive species
6 0
3 years ago
Read 2 more answers
If an enzyme's active site contains only two ionizable residues, an arginine and a glutamate (pKa's of 2.9 and 9.1, respectively
Cerrena [4.2K]

Answer:

Optimum pH= 6

Optimum pH for the given enzyme would be the average of pKa values of two amino acids (2.9 + 9.1 /2= 6)

Explanation:

The pKa represents the association constant of amino acids. It is calculated by taking the negative log value of the ratio of a dissociated acid and the conjugated base which in turn regulates the isoelectric point (pI) of the protein.

The amino acids present in the active site of the enzyme regulate the interaction of enzyme and substrate. The given enzyme contains two ionizable amino acids with pKa values of 2.9 and 9.1 respectively. Therefore, the optimum pH of the given enzyme would be 2.9 + 9.1 / 2 = 12/2 = 6.  

At pH 6, both the ionizable amino acids would serve as a good buffer with their active proton donor and proton acceptor species.

4 0
3 years ago
‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎‎<br>‎‎‎‎‎‎‎
Allushta [10]
For me your question is blank.
4 0
3 years ago
Which of the following descriptions about electrons is correct?
kati45 [8]

The number of electrons in a neutral atom equals to the number of protons in the nucleus.

5 0
2 years ago
When is a mutation considered favorable
inn [45]
When it helps the organism in question survive
7 0
3 years ago
Other questions:
  • N the context of the neural impulse, another term that describes "firing" of neurons is the _____ potential.
    15·1 answer
  • Which of the following pathogens typically causes infections on the surface of the skin and nails, such as athlete's foot?
    8·1 answer
  • Mendel conducted his experiments on pea plants (Pisum sativum) from 1856-1868. What distinguished Mendel's hybridization studies
    15·1 answer
  • How do you know the slope is the least in the land near the four ponds
    5·1 answer
  • What kind of energy heats our school in winter?
    14·1 answer
  • What are the side effects of lactose intolerance
    7·2 answers
  • An 85-year-old woman is administered a general anesthetic for repair of a hip fracture. Which of the following properties of the
    10·1 answer
  • In plants, the purpose of auxins is to
    12·1 answer
  • Can the environment and the heritage be used to describe evolution?
    7·1 answer
  • 1
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!