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
SVETLANKA909090 [29]
2 years ago
11

The stems of bamboo, a tropical grass, can grow at the phenomenal rate of 0.3 m/day under optimal conditions. Given that the ste

ms are composed almost entirely of cellulose fibers oriented in the direction of growth, calculate the number of sugar residues per second that must be added enzymatically to growing cellulose chains to account for the growth rate. Each D-glucose unit contributes ~0.5 nm to the length of a cellulose molecule.
Biology
1 answer:
nevsk [136]2 years ago
8 0

Answer:

Approximately 6944 glucose residues are added enzymatically per second

Explanation:

Cellulose is the main structural polysaccharides in plants. It is composed of unbranched glucose monomer units linked to each other by beta 1-4 glycosidic bonds.

The cell wall and stem of plants cells are composed of cellulose fibers. They provide rigidity and support to the plant.

In the given bamboo plant, the enzymatic addition of glucose units to the growing cellulose fiber chains results in the phenomenal growth rate of the bamboo stem.

Since each glucose unit contributes ~0.5 nm to the length of a cellulose molecule, number of glucose units required for daily growth is calculated as follows:

0.5 nm = 10⁻⁹

0.3 m/0.5 x 10⁻⁹ m = 600000000 units of glucose per day

Number of seconds in a day = 24 * 60 * 60 = 86400 seconds

Number of glucose residues added per second = 600000000/86400

Number of glucose residues added per second = 6944.4 glucose molecules per second

Therefore, approximately 6944 glucose residues are added per second

You might be interested in
What is the last structure of the air passageway in your lungs
Rasek [7]

Answer:

Bronchioles

Explanation:

You inhale through your nose and the air is filtered. It goes down the pharynx. It goes through the larynx. A "door" called the epiglottis opens during breathing. Then it enters the trachea. (windpipe) It goes through the bronchus. The tertiary bronchi branch into fine tubules called bronchioles, the last passageways for air. Air ends its pathway in the ________. (I bet you can guess because you're so smart!) They're surrounded by capillaries that connect the pulmonary arteries and veins. This enables the transfer of oxygen and carbon dioxide.

I hope this helped!!! Good luck on the test/quiz/project/homework/etc. you're working on! If you want I can give you a l!nk to the article I used. If not, it's fine too. Have a great day!

7 0
3 years ago
PLS HELP!!!
choli [55]
D. Oxygen and metal


They usually contain some form of metallic cation, given that carbonates are the most distributed minerals in the Earth's crust.

Hope this helped!
5 0
3 years ago
Read 2 more answers
What is a double helix
KengaRu [80]
A double helix is <span>a pair of parallel helices intertwined about a common axis, especially that in the structure of the DNA molecule. or in other words a double spiral.</span>
6 0
3 years ago
Read 2 more answers
PLEASE ANSWER THIS!
Veseljchak [2.6K]

Answer:

because when you do it on accident it is unintentional and scares you because you werent expecting it. but when you do it on purpose it wont hurt because your brain stops you from doing it so hard that it hurts lol

Explanation:

6 0
2 years ago
Name one breed of chicken that is reared for egg production​
Leno4ka [110]

Answer:

featherless chicken

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • A pattern of fat being predominantly distributed around the hips and thighs, more common in women, is known as __________.
    7·2 answers
  • In your own words , describe the structure of the buckyball molecule
    7·1 answer
  • Which of the following describes the grains found in igneous rocks?
    6·1 answer
  • Which organic compound produced during photosynthesis is used by plants to store energy?
    11·1 answer
  • plz help me u have to match the word with the defineition BRAINLIESTTTTTTTT and u must do all of them or u will get reported
    6·2 answers
  • So why do cats have tails
    8·1 answer
  • 4. Some groups of organisms move from colder climates to warmer climates at
    15·1 answer
  • Cubozoans can be found in which life stage
    11·1 answer
  • A plant is growing near edge of a forest grows best when it gets a large amount of sunlight. If a forest fire occurs and burns d
    6·1 answer
  • What are the precautions of asthma
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!