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
r-ruslan [8.4K]
2 years ago
13

Let's look at the original hypotheses arising from the original question: "Does the size of the

Biology
1 answer:
kicyunya [14]2 years ago
6 0

Answer:

<em><u>H1: false, the observations of the molecules do not support the hypothesis...</u></em>

Explanation:

The cell membrane is comprised of a phospholipid bilayer, proteins, and cholesterol. These components help the membrane to maintain its selective permeability and concentration of solutes and water.

The lipid molecules have polar hydrophilic heads and hydrophobic tails. These only readily allow for the movement of small non polar molecules. Other substances, like charged ions and large molecules require transport proteins to move in and out of the cell. Hypothesis: H+ is small and should be able to move freely through the membrane, While glucose is large and cannot move freely

  • Observing H+, despite being very small these cannot easily pass through the membrane. They require transport proteins called channels for their free movement or passive movement across the membrane.
  • For glucose, these molecules pass through specialized channels in facilitated diffusion. They move down their concentration gradient into the cell. To move out of the cell against its concentration gradient glucose requires ATP for active transport.
  • Cortisol, is a large steroid hormone, taken into the cell by simple diffusion across the lipid membrane, down its concentration gradient.

You might be interested in
Which statement is true?
astraxan [27]

Answer:

D. gene expression and protein synthesis can be considered the same thing

Explanation:

:)

7 0
3 years ago
I need help with this question
Zielflug [23.3K]
Colloid- C)
Emulsion- A)
Heterogeneous- D)
Homogeneous- B)

Hope this helps!!
8 0
3 years ago
How do some nucleotide sequences in DNA get copied into RNA when DNA and RNA have different bases. For example, how is the seque
kvasek [131]

Answer:

In RNA the base thymine is essencially replaced by the base uracil. So the sequence TGAC in DNA would get copied into RNA as ACUG.

Adenine pairs with uracil in RNA like it pairs with thymine in DNA

Explanation:

8 0
3 years ago
Describe the biome in which the species lives and the properties of the biome
diamong [38]

Answer:

A biome is described as an area of the planet, which is classified on the basis of plants and animals living in that area. Soil, amount of light, temperature, and water are some of the important factors that determine what type of life exists in a biome.

The temperature, vegetation, and precipitation are the important characteristics of the biome.

Examples of biomes include tundra, desert etc.







6 0
3 years ago
Enzyme hot spring graphing what enzymes probably came from the digestive tract of the mondoni
AURORKA [14]
I found the full exercise on the internet and it describes that there are three enzymes and you want to know which are the two enzymes from the <span>digestive tract of the mondoni and which one is the enzyme from a hot spring.
Attached are two graphs from the analysis of the activity of these enzymes regarding temperature and pH. I found these graphs with the full exercise.
The enzymes that probably came from the </span>digestive tract of the mondoni were enzymes A and B. These enzymes were resistant two lower levels of pH which indicates that they could be present in a <span>digestive tract, which tends to be acidic, while the enzyme C does not tolerate lower pH levels. Enzymes A and B were also more active when in lower temperatures that match temperatures of a normal living organism, whereas enzyme C was more active in higher temperatures matching its probable provenience - a hot spring.</span>

6 0
3 years ago
Other questions:
  • On a scale of 1 to 10, with 1 being very unlikely and 10 being very likely, how likely is it that a comet will strike Earth duri
    13·1 answer
  • What best describes the association between the carbon cycle, plants, and animals.
    5·1 answer
  • Would plant seeds that store energy in oil respire faster or would plant seeds that store energy in sugar respire faster?
    9·1 answer
  • The type of mutation that alters the nucleotide sequence of a gene but does not alter the amino acid sequence of the protein pro
    8·1 answer
  • Name five elements named after countries
    14·2 answers
  • Inhibiting enzymes involved in cell wall synthesis leads to which of the following? A) cell death by osmotic lysisB) a reduction
    7·1 answer
  • Drag the words to the boxes in order from smallest<br> to largest!
    7·2 answers
  • Why is it a good idea to substitute transitions for visual elements in a text?
    5·2 answers
  • Smoke and Sulfuric Acid, It help cool the atmosphere.<br> True or false ?
    12·2 answers
  • Most of the joints in the appendicular skeleton are __________ joints.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!