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d1i1m1o1n [39]
2 years ago
15

HELP I'LL GIVE BRAINLIEST DUE BY 11:59!!!!!!!

Biology
1 answer:
Ray Of Light [21]2 years ago
3 0
Enzyme activity can be affected by a variety of factors, such as temperature, pH, and concentration. ... However, extreme high temperatures can cause an enzyme to lose its shape (denature) and stop working. pH: Each enzyme has an optimum pH range. Changing the pH outside of this range will slow enzyme activity. Hope it helps
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In observing epithelial cells under a microscope, the cells are arranged in a single layer and look tall and narrow, and the nuc
Kipish [7]

Answer:

Columnar epithelial tissue.

Explanation:

The above scenario confirms that these are simple columnar epithelial tissue because columnar cells are tall, narrow and nucleus in the tall column like cells located at the basal end of the cells. Columnar epithelial tissue are responsible for absorption and secretion of molecules. These are present at some part of digestive tract, female reproductive tract, and respiratory system.

8 0
3 years ago
Answer questions about aspects of Watson-Crick model of DNA structure
tino4ka555 [31]

Answer:

a. The directionality of the complementary strand is antiparallel. The double-stranded DNA is antiparallel comprising two strands, which run alongside each other, however, point in reverse directions. In a double-stranded molecule of DNA, the 5 prime ends of one strand align with the 3 prime ends of the other strand, and vice versa.  

b. The mediation of base pairing is done by non-covalent hydrogen bonds. It is reversible, that is, the strands can separate and can come combined again without any chemical modification.  

The specificity of base pairing is illustrated by hydrogen bonds that is, the first strand produces hydrogen bonds only with a particular base in the second strand, and these two bases produce a base-pair.  

c. The interaction or association of non-covalent type, that is, hydrophobic interaction and hydrogen bonding. Collectively, they both are strong. In the process, one base associate with the other base on the complementary strand.  

d. The phosphate backbone possesses the tendency to associate with water on the outside of the molecule, and this is favorable chemically as both the strands are held together by hydrogen bond and hydrophobic interaction.  

The polar molecules of sugar can produce hydrogen bonds with the surrounding molecules of water. The negatively charged phosphate group associate with the positively charged ions. The nonpolar nitrogen bases are found within the molecule and associate favorably through stacking interactions.  

6 0
2 years ago
Use the information to identify the phases described below. ✔ metaphase Sister chromatids line up along the middle of the cell.
katrin2010 [14]

Answer:

metaphase

Explanation:

next ones are

-telophase

-prophase

-anaphase

3 0
2 years ago
Read 2 more answers
HELP PLEASE HELP<br> ASAP!!<br> i’ll give brainliest.
lesantik [10]

Answer:

Thermal energy- The warmth of the sun

Chemical Energy-Coal: Combustion reaction converts chemical energy into light and heat

Nuclear Energy- Electricity generated from a nuclear reactor

Sound Energy- The waves that travel from a voice

Gravitational Energy- A pen being held above a table has a higher gravitational potential than a pen sitting on the table

Explanation:

5 0
2 years ago
Read 2 more answers
Which of the following happens when a cell divides?
Vera_Pavlovna [14]

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

                  Hello!

✧・゚: *✧・゚:*    *:・゚✧*:・゚✧

❖ The correct answer choice is C. Each daughter cell receives its own copy of the parent cell's DNA.

~ ʜᴏᴘᴇ ᴛʜɪꜱ ʜᴇʟᴘꜱ! :) ♡

~ ᴄʟᴏᴜᴛᴀɴꜱᴡᴇʀꜱ

3 0
3 years ago
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