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
kvv77 [185]
3 years ago
15

If you collected a piece of cell coating found directly external to a eukaryotic plasma membrane, and chemical tests showed that

it was made of cellulose, you would expect to see plasmodesmata if observed with an electron microscope.
True or False?
Biology
2 answers:
zalisa [80]3 years ago
8 0

Answer:

True.The cellulose must have been conveyed to the surface by the plasmodesmata through  contraction and relaxation of plasmodesmata  openings  for  movements of substances in and out of the cells.

Explanation:

Plasmodesmata are tiny cylindrical channels;  which pass through both the secondary and primary  cell walls of plant. They  are  lined by plasma membranes in plant cells; they are living passages .They connect  the cytoplasm of adjacent cells to one another, to form a continuous network for transport of certain substances across cells; aiding  effective cell communication.

<u>Structurally, they are produced in plant cells  when fragments  of the Endoplasmic Reticum  of the parents cells get trapped in the cell wall meant for formation of  new daughter cells during cell division.</u>

Explanation:

Hatshy [7]3 years ago
5 0

Answer:

True

Explanation:

The observed cell is a plant cell because of presence of cellulose coating on cell membrane. The plasmodesmata are the a layer between cell and cell membrane of plant cells that is porous in nature and enables communication between cell and outside environment. It is obvious to find this with cellulose coating. These plasmodesmatas have same function as gap junction animal cells.

You might be interested in
If you dissected an owl pellet and found several of the skulls shown, what would you conclude is the preferred prey of this owl?
zavuch27 [327]

Answer:

The answer is C. mouse

Explanation:

I just did it on a test

8 0
3 years ago
Read 2 more answers
What is digestion and how does it work
slamgirl [31]

Answer:

Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream.

Explanation:

Digestion works by moving food through the GI tract. Digestion begins in the mouth with chewing and ends in the small intestine. As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. The body then absorbs these smaller molecules through the walls of the small intestine into the bloodstream, which delivers them to the rest of the body. Waste products of digestion pass through the large intestine and out of the body as a solid matter called stool.

3 0
2 years ago
Choose all the answers that apply. Nitrogen dioxide: is a waste product of photosynthesis is formed when fuel is burned at high
GaryK [48]

The correct answers is:

is formed when fuel is burned at high temperatures

<em>Nitrogen dioxide is another toxic gas that forms when fuels are burned at high temperatures.</em>

is the most abundant gas in the atmosphere

<em>The most abundant gas is nitrogen. Over 78 percent of the air we breathe is nitrogen (N)</em>

can cause acid rain

<em>Both nitrogen dioxide and sulfur dioxide can cause acid rain. The damage done by acid rain is devastating to the plants and animals in an ecosystem.</em>

is a major pollutant in the air

<em>AQI measures five major pollutants, including carbon monoxide, nitrogen dioxide (NO2), and sulfur dioxide (SO2).</em>

Wrong answers:

is a waste product of photosynthesis

<em>The waste product of photosynthesis is oxygen.</em>

7 0
3 years ago
Select all the correct answers.
Agata [3.3K]

Answer:

A) Plants can’t photosynthesize at night.  

C) Plants need ATP production for the entire day.

Explanation:

A) is correct. Photosynthesis occurs only in daylight hours.

B) is wrong. Photosynthesis peaks at noon when the sun is at its peak.

C) is correct. Plant respiration occurs both day and night.

D) is wrong. Photosynthesis begins at sunrise.

4 0
3 years ago
How are speed and velocity similar?
givi [52]

Answer:

The answer is B. They both tell you how fast the object is traveling.

Explanation:

Sorry if this is wrong. Just trying to help!

7 0
2 years ago
Other questions:
  • Which of these would be the end of meiosis I and the beginning of meiosis II?
    12·2 answers
  • Two groups of students were tested to compare their speed working on math problems. Each group was given the same problems. One
    12·1 answer
  • Amebas are single-celled organisms that need to obtain food in order to (1) release oxygen into the air (2) protect themselves f
    13·1 answer
  • The cell membrane around a cell forms a barrier that protects and regulates the cell. Certain chemicals can pass through the pla
    6·2 answers
  • TWO TUNWy tenis aliu ueillons.
    6·1 answer
  • How do green and brown anoles avoid competition?
    6·1 answer
  • Why do deep-ocean vessels have very thick windows and walls ?
    8·1 answer
  • What could we do to destroy dangerous
    12·1 answer
  • 1. Which of the following statements is not true regarding mutations?
    10·1 answer
  • The light-independent reactions of photosynthesis, also known as the Calvin cycle, must repeat three times in order for a cell t
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!