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
Dahasolnce [82]
3 years ago
15

The track coach notices that his star runner is running quicker than ever before, but quickly gets tired and shows evidence of d

epression after the race. The coach should suspect that the runner might be taking __________.
A. growth hormones
B. amphetamines
C. protein supplements
D. creatine
Health
2 answers:
Rudiy273 years ago
8 0
I think the answer is creating
yKpoI14uk [10]3 years ago
6 0

Answer:

D

Explanation:

matches the description  

You might be interested in
1. What is the article mostly about?
Marrrta [24]
The answer is b to this .
3 0
3 years ago
Steve is a construction worker. He cut his hand deeply. The cut then became infected. Which line of immune defense was broken in
Agata [3.3K]
His skin was the line of defense that was broken. Hope this helps.
7 0
3 years ago
The ________________________ is published by the federal government and includes all actions taken by any government entity on a
FrozenT [24]
It is the federal register.
7 0
3 years ago
All cells share the following common components except
Monica [59]

Answer:

All cells share four common components: (1) a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment; (2) cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found; (3) DNA, the genetic material of the cell; and (4) ribosomes, particles that synthesize proteins. However, prokaryotes differ from eukaryotic cells in several ways.



Figure 1. This figure shows the generalized structure of a prokaryotic cell.

A prokaryotic cell is a simple, single-celled (unicellular) organism that lacks a nucleus, or any other membrane-bound organelle. We will shortly come to see that this is significantly different in eukaryotes. Prokaryotic DNA is found in the central part of the cell: a darkened region called the nucleoid (Figure 1).

Unlike Archaea and eukaryotes, bacteria have a cell wall made of peptidoglycan, comprised of sugars and amino acids, and many have a polysaccharide capsule (Figure 1). The cell wall acts as an extra layer of protection, helps the cell maintain its shape, and prevents dehydration. The capsule enables the cell to attach to surfaces in its environment. Some prokaryotes have flagella, pili, or fimbriae. Flagella are used for locomotion, while most pili are used to exchange genetic material during a type of reproduction called conjugation.

Eukaryotic Cells

In nature, the relationship between form and function is apparent at all levels, including the level of the cell, and this will become clear as we explore eukaryotic cells. The principle “form follows function” is found in many contexts. It means that, in general, one can deduce the function of a structure by looking at its form, because the two are matched. For example, birds and fish have streamlined bodies that allow them to move quickly through the medium in which they live, be it air or water.

A eukaryotic cell is a cell that has a membrane-bound nucleus and other membrane-bound compartments or sacs, called organelles, which have specialized functions. The word eukaryotic means “true kernel” or “true nucleus,” alluding to the presence of the membrane-bound nucleus in these cells. The word “organelle” means “little organ,” and, as we learned earlier, organelles have specialized cellular functions, just as the organs of your body have specialized functions.

Cell Size

At 0.1–5.0 µm in diameter, prokaryotic cells are significantly smaller than eukaryotic cells, which have diameters ranging from 10–100 µm (Figure 2). The small size of prokaryotes allows ions and organic molecules that enter them to quickly spread to other parts of the cell. Similarly, any wastes produced within a prokaryotic cell can quickly move out. However, larger eukaryotic cells have evolved different structural adaptations to enhance cellular transport. Indeed, the large size of these cells would not be possible without these adaptations. In general, cell size is limited because volume increases much more quickly than does cell surface area. As a cell becomes larger, it becomes more and more difficult for the cell to acquire sufficient materials to support the processes inside the cell, because the relative size of the surface area across which materials must be transported declines.



Figure 2. This figure shows the relative sizes of different kinds of cells and cellular components. An adult human is shown for comparison.

IN SUMMARY: COMPARING PROKARYOTIC AND EUKARYOTIC CELLS

Prokaryotes are single-celled organisms of the domains Bacteria and Archaea. All prokaryotes have plasma membranes, cytoplasm, ribosomes, a cell wall, DNA, and lack membrane-bound organelles. Many also have polysaccharide capsules. Prokaryotic cells range in diameter from 0.1–5.0 µm.

Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes, but a eukaryotic cell is typically larger than a prokaryotic cell, has a true nucleus (meaning its DNA is surrounded by a membrane), and has other membrane-bound organelles that allow for compartmentalization of functions. Eukaryotic cells tend to be 10 to 100 times the size of prokaryotic cells.

Explanation:

please mark me as brainliest thank you

5 0
3 years ago
Should I Go Gluten-Free?
malfutka [58]

Answer: Jesus okay- sure

Explanation:HAHA-

8 0
3 years ago
Other questions:
  • What is duel federslism
    15·1 answer
  • Which of the following is an activity that a student can participate in at school and temporarily avoid vigorous aerobic activit
    5·1 answer
  • Which statement describes the invention that had the BIGGEST impact on the ability to diagnose disease? A.Protective clothing wa
    5·1 answer
  • Most people who have herpes know right away that they are infected because symptoms appear within 24 hours.
    14·1 answer
  • Which of the following statements about alcohol is true?
    8·1 answer
  • Which structure allows air to flow safely into the lungs after leaving the nasal cavity?
    7·1 answer
  • When practicing reading skills, you should focus on _______. content recall comprehension speed all of the above
    12·1 answer
  • Screenshot for health
    5·2 answers
  • Is communicating the results of a normal chest x-ray to a patient requires an appointment.
    10·2 answers
  • HELP ASAP.:. 100 PTS
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!