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
Westkost [7]
3 years ago
10

Pancreatic cells, which secrete a large amount of digestive enzymes, are labeled with radioactive leucine and then chased for se

veral hours withnonradioactive leucine. Photographic emulsions are prepared at different times during the chase. Where would the black spots appear on an emulsionprepared 3 hours after the pulse?
A- Rough ER
B- Secretory vesicles
C- Golgi apparatus
D- Exterior of the cell
Biology
1 answer:
Vika [28.1K]3 years ago
3 0

Answer:

Exterior of the cell

Explanation:

Pancreas is a gland found behind the stomach and it secretes digestive enzymes into the duodenum.

Digestive enzymes are proteins hence leucine will form part of the enzymes.

Digestion of food takes approximately three hours. Therefore, if labelled Leucine  is chased down with non radioactive leucine.

Black spots will appear on the exterior of the cells because digestive enzymes are extracellular enzymes .

You might be interested in
Aidan has had non stop diarrhea all day and is severely weakened. why is his nurse concerned?
Alexandra [31]
Diarrhea can be caused by indigestion, a raw meal, or little bacterias found in almost anything we swallow, but if it doesn´t stop in a 12 hours period, it may be caused by some infection or a worse condition that need to be seen by a doctor, is this case, the nurse is concerned because Aidan is severely weakened, signal that is dehydrating very fast and that could cause him a worse condition such as hypotension, hypoglycemy or even losing consciouness.
3 0
3 years ago
The oxygen circulated by the circulatory and respiratory systems is used for what
Brut [27]

Answer:

Cellular respiration

Explanation:

Respiration is the process by which energy is made. Aerobic respiration requires oxygen.

All the other processes listed do not require oxygen to.

5 0
2 years ago
To extract energy from carbohydrates, glucose is oxidized through several metabolic processes, resulting in end products of carb
BlackZzzverrR [31]

Answer:the item that has steps involved in glucose oxidation in an aerobic environment is ATP.

CH12O6 + 6O2 + 36Pi^-1 + 36ADP^3- + 35H^+ = 6CO2 + 36ATP^4- + 42H2O

Explanation:

Aerobic oxidation of glucose is coupled to the synthesis of as many as 36 molecules of ATP: Glycolysis, the initial stage of glucose metabolism, takes place in the cytosol and does not involve molecular O2. It produces a small amount of ATP and the three-carbon compound pyruvate.

5 0
3 years ago
There are hundreds of different restriction enzymes that each cut ______ at a different palindrome sequence.
Sphinxa [80]

Answer:

DNA

Explanation:

<h2>What is DNA?</h2>

DNA is a self-replicating material that is present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.

4 0
2 years ago
Prokaryotic bacteria are surrounded by a ____________ that contains the ____________ to regulate the entry and exit of materials
lukranit [14]

Prokaryotic bacteria are surrounded by a cell membrane that contains the transport proteins to regulate the entry and exit of materials through the cell, the cell wall to help maintain cell shape and structure, and the capsule, which aids against drying out and protects bacteria from a host's immune system.

<h3><u>Explanation:</u></h3>

Bacteria are the prokaryotic organisms that are found in every part of Earth. These organisms do have an interesting ultrastructure. The coverings of the bacteria are three in layer. They are

A. The outer capsule.

B. The middle cell wall.

C. The inner cell membrane.

The capsule is the outermost covering of bacteria that is formed of different slimy materials. These materials contains hygroscopic substances which can absorb water from the surroundings even when the water concentration in outside is very very low. This layer of protection outside bacteria help them to protect themselves against drying out at dry conditions.

The middle cell wall is formed of polymers of N acetyl glucosamine and N acetyl muramic acid. This layer is chitin in nature and is strong enough to maintain the shape and size of bacteria irrespective of outer conditions.

The innermost layer of bacteria is cell membrane which is formed of proteins and lipids bilayer and this cell membrane contains different transport for proteins which help in transport of different substances like water and nutrients inside the cell by means of active transport or passive diffusion.

6 0
3 years ago
Read 2 more answers
Other questions:
  • What tools/techniques do scientists use to collect the data that is used to predict a hurricane's path?
    13·2 answers
  • Explain the difference between chromosomes, chromatids and chromatin. (3-4 sentences)
    6·1 answer
  • Which are two ways that igneous rock are classified
    5·1 answer
  • The cellular division that changes the chromosome ploidy number from 2n to 1n occurs during
    7·1 answer
  • With regard to cognitive development, piaget argued that _____ is more revealing than _____.
    15·1 answer
  • What would happen to the predators if there were too many prey
    11·1 answer
  • PLLZZ I NEED HELP DUE SOON!!!!
    13·1 answer
  • Can you plz help me I don’t get it
    8·1 answer
  • The production of which substance by using cell technology allows scientists to make treatments that can target specific
    5·2 answers
  • 1. En la localidad en la que vives, en tu entorno inmediato (colonia, cantón, barrio, pueblo), deberás identificar puntualmente
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!