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
Korvikt [17]
2 years ago
13

Describe how plant cells keep themselves rigid. Word Count: of 125

Biology
1 answer:
Sveta_85 [38]2 years ago
4 0

Las paredes externas de una casa o un automóvil brindan una barrera fuerte e inflexible que protege a sus habitantes humanos de un mundo externo rudo e impredecible. Podría esperarse que el límite externo de una célula viva estuviera construido de una barrera igual de fuerte e impenetrable porque también debe proteger su delicado contenido interno ante un ambiente no vivo y a menudo inhospitalario. Sin embargo, las células están separadas del mundo externo por una estructura delgada y frágil llamada membrana plasmática que sólo mide 5 a 10 nm de espesor. Se requerirían casi 5 000 membranas plasmáticas apiladas una sobre otra para igualar el grosor de una sola página de este libro.

You might be interested in
A glycosidic linkage is analogous to_________ in proteins
luda_lava [24]

Answer: Peptide bond

Explanation:

Polysacharride are monomers of carbohydrates linked together by glycosidic bonds to form long chains, also proteins are polymers of amino acids linked together by peptide bonds.

Linear chains of carbohydrates are linked together by glycosidic alpha-1,4- glycosidic linkages(between the OH group of the first carbon if the 1st monomer and the OH group of the 4th carbon of the second monomer. The branched point are linked by alpha-1,6-linkages.

In proteins the alpha carboxyl group of one amino acid react with alpha amino group of another amino acid to form a peptide bond or CO-NH bridge. Proteins are made by polymerization of amino acids through peptide bonds.

5 0
3 years ago
The inner planets are made primarily of
GrogVix [38]
I’d say A is probably the correct answer , but if not A , then definitely B.
4 0
2 years ago
Which of the following is the biggest threat to the Monarch butterflies’ annual migration? a. illegal logging c. airplanes b. co
alina1380 [7]

A. illegal logging

Good luck!

8 0
2 years ago
Read 2 more answers
Can someone help me to write conclusion about nervous system in human
Svetradugi [14.3K]
Conclusion this is how the nervous system in human 
3 0
3 years ago
Read 2 more answers
Help help help help me please!!!!!!!!!!!!!!!!
MatroZZZ [7]

The correct answer should be The ability to reproduce only within a species.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Please define these terms so Middle schoolers can understand: Groundwater discharge, streamflow, water storage in ice and snow,
    12·1 answer
  • some of the epithelial cells are folded or wrinkled what does this tell you about the thickness of the cells?
    12·2 answers
  • Which of the following adaptations in wooly mammoths could have best prevented their extinction?
    9·2 answers
  • ◦How would a highly developed eye and the ability to change color be beneficial for cephalopods?
    15·1 answer
  • What surface cost the least fraction? a. Rock b. Grass c. Dirt d. Ice
    8·2 answers
  • What happens during carbon fixation?
    6·1 answer
  • 7.
    7·1 answer
  • When we talk about soil depletion, which soil horizon are we talking about? Thank you
    14·1 answer
  • What is land use? (1 point)
    9·1 answer
  • A scientist is studying two previously undocumented organisms to determine how environmental conditions affect phenotype express
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!