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
skelet666 [1.2K]
3 years ago
15

What is the function of the companion cell

Biology
1 answer:
love history [14]3 years ago
4 0
<h2><u>These cells are found in the phloem of the flowering plants. They shift sugar and amino acids in and out of the sieve elements. In the leaf (source tissue), the companion cells make use of the transmembrane proteins for the uptake of sugar and amino acids by active transport.</u></h2>
You might be interested in
There are initially 1000 bacteria in a culture. The number of bacteria doubles each hour. The number of bacteria N present after
polet [3.4K]
There are several information's of immense importance already given in the question. Based on those information's the answer can be easily deduced. 
Initial number of bacteria in the culture = 1000
Number of bacteria after t hours = 1000 (2)^t
Then
1000 (2)^t = 50000
2 ^t = 50
t = 5.6

I hope the procedure is clear enough for you to understand.
3 0
3 years ago
(Enzymes) Which of the following may cause an enzyme to unfold or denature?
Sergeeva-Olga [200]
Really high temperatures cause the enzyme to denature.
4 0
2 years ago
Do both plant cells and prokaryotic cells have 70S ribosomes ​
NemiM [27]
OK SOMEONE ALREADY ANSWERED SO I NEED DA POINTS TYSM AND ALSO ANANDI34 IT’S I HOPE IT HELPS IT’S OK THO BUT AT LEAST YOU KNOW
5 0
3 years ago
How thick is the outermost layer of th earth
Likurg_2 [28]
Like 50 miles for the outermost layer which is called the LITHOSPHERE
3 0
2 years ago
1) If you
erica [24]

Answer:

Triassic Period (252 to 201 million years ago)

All continents during the Triassic Period were part of a single land mass called Pangaea. This meant that differences between animals or plants found in different areas were minor.

The climate was relatively hot and dry, and much of the land was covered with large deserts. Unlike today, there were no polar ice caps.

It was in this environment that the reptiles known as dinosaurs first evolved. Reptiles tend to flourish in hot climates because their skin is less porous than, for example, mammal skin, so it loses less water in the heat. Reptile kidneys are also better at conserving water.

4 0
2 years ago
Other questions:
  • A formal decision by a governing body is known as a(n) ___________. A. amendment B. resolution C. catayst D. contingent Please s
    6·2 answers
  • How are bacteria able to change their patterns of protein synthesis so quickly in response to environmental changes?
    14·1 answer
  • Which of these is part of the inner ear?
    15·2 answers
  • How does nitrogen get into the air
    6·1 answer
  • I need an example of how cancer relates to the cell cycle.
    15·1 answer
  • Identify one way in which the process of growth of a human embryo is similar to the process of reproduction in a single called o
    10·1 answer
  • ¿Cuándo es menor el espesor del endometrio?
    9·1 answer
  • Describe 3 characteristics that are not inherited, but affect survival
    14·2 answers
  • Is photoshynthesis a chemical change ? yes or no ?
    13·1 answer
  • Your body produces about 300 million cells every minute. Why is it important that mitosis is a
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!