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
mafiozo [28]
3 years ago
7

Which of these four cells has the largest actual size?

Biology
1 answer:
Pie3 years ago
4 0

The correct answer is B.

You might be interested in
A plastic rod becomes negatively charged when it is rubbed with a piece of wool. how does the rob become charged?
gavmur [86]
Electrons are being transferred to the rod therefore giving a negative charge
3 0
3 years ago
A group of scientists have completed several investigations to gather evidence from fossils about the brachiopod. Which of these
riadik2000 [5.3K]
The fossils based on the brachipod
5 0
3 years ago
What statement best describes what happens to a substrate after it bonds to an enzyme?
Andrew [12]
The enzyme catalyzes (speeds up) the rate at which the substrate is broken down.
8 0
3 years ago
Read 2 more answers
Is a group of species that includes an ancestral species and all of its descendants?
Alekssandra [29.7K]
A clade is a group of species that includes an ancestral species and all of its descendents
5 0
3 years ago
Which is a mechanism for restricting the movement of proteins in the plasma membrane? Choose one or more:
alexgriva [62]

Answer:

The correct answers are option A. "tethering proteins to the cell cortex", B. "using barriers such as tight junctions", C. "tethering proteins to the extracellular matrix", D. "forming a covalent linkage with membrane lipids", E. "tethering proteins to the surface of another cell"

Explanation:

According to the fluid-mosaic model, the components of cell membranes are in constant movement forming a barrier to avoid unwanted exterior component internalization and to avoid the loss of precious internal components. This constant movement could cause that proteins move across the plasma membrane. But, this is avoided by several mechanisms including:

A. Tethering proteins to the cell cortex. The cell cortex is a rigid structure made of actin and actomyosin. Proteins found in the plasma membrane are tethered to this structure to restrict their movement.

B. Using barriers such as tight junctions. Tight junctions are barriers found in epithelia made of claudin and occludin proteins. These barriers are impenetrable, which avoid the movement of proteins in the cell membrane.

C. Tethering proteins to the extracellular matrix. The extracellular matrix is made of several proteins and macromolecules that provide a structural and biochemical support to cells that are nearby. Proteins could be tethered to this rigid structure as well.

D. Forming a covalent linkage with membrane lipids. The proteins in the cell membrane that form a covalent linkage with membrane lipids are known as lipid-anchored proteins, or lipid-linked proteins.

E. Tethering proteins to the surface of another cell. When cell-cell communication take place it is possible that proteins in the cell membrane got tethered to the surface of the other cell.

6 0
3 years ago
Other questions:
  • Describe the factors that influence the weather, and explain how meteorologists are able to predict changes in the weather.
    8·2 answers
  • I need help I don’t know how to arrange them right what’s the answer? I couldn’t fit all the boxes but the second to last one sa
    12·1 answer
  • Which of the following factors will most likely limit the light-dependent reactions of photosynthesis?
    12·2 answers
  • Parasitism is when
    15·2 answers
  • Comets travel in orbits around the Sun. Some comets take less than 200 years to orbit the Sun. They are called short-period come
    8·2 answers
  • A human blood cell is placed in fresh water. As a result, water moves _____ the cell
    9·2 answers
  • Please help me out!
    13·1 answer
  • What is pollination?
    7·2 answers
  • What is the difference between primary producers and consumers?
    14·2 answers
  • What is the difference between a nonliving specimen and one that<br> a<br> you<br> considered dead?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!