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
Marianna [84]
3 years ago
12

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

veral hours with nonradioactive leucine. Photographic emulsions are prepared at different times during the chase. Where would the black spots appear on an emulsion prepared 3 hours after the pulse?
A. Golgi apparatus
B. Secretory vesicles
C. Exterior of the cell
D. Rough ER
Biology
1 answer:
LiRa [457]3 years ago
5 0

Answer:

Option-C

Explanation:

A pulse-chase experiment which is used to study the cellular process taking place in the cells. This uses the labelled molecule which is incorporated into the cellular pathway and then the unlabeled molecules are used over time to determine how much time is required by the unlabeled molecule to replace the labelled molecule.

In the given question, the pancreatic cell which secretes the digestive enzyme known as the acinar cell is labelled with the leucine and then used unlabeled leucine.

When observed after three hours, the black spots will appear on the exterior of the cell as the protein has been synthesised by the ER and now has been secreted from the cell.

Thus, Option-C is the correct answer.

You might be interested in
Please help:
Oksana_A [137]

Answer:

a

Explanation: because a prokaryote is a simple single-celled organism that lacks an organized nucleus or any other membrane-bound organelle

6 0
2 years ago
Read 2 more answers
1.What are the five levels of organization in the human body from the most basic to the most complex?
Anuta_ua [19.1K]
D is the correct answer
5 0
3 years ago
If the moon is setting at midnight, what phase is it?
joja [24]

Answer:

the the climax of the night

8 0
3 years ago
Which of the following characteristics of plants is absent in their closest relatives, the charophyte algae?
Phoenix [80]

Answer: d. alternation of multicellular generations

Explanation:

The gametophytic as well as the sporophytic generations are alternative in the life cycle of the multicellular plants. This can be seen among the land plants. This feature cannot be seen in the algal species as they are unicellular in nature. Thus cannot be seen in the relatives of charophyta algae.

3 0
3 years ago
How much atp is produced in cellular respiration.
kati45 [8]
Biology textbooks often state that 38 ATP molecules can be made per oxidized glucose molecule during cellular respiration (2 from glycolysis, 2 from the Krebs cycle, and about 34 from the electron transport system).
4 0
3 years ago
Other questions:
  • Difference between species evenness and species richness
    15·2 answers
  • Who developed the modern model of the solar nebular disk instability model?
    6·2 answers
  • Should we put animals to unnatural and painful situations in the pursuit of knowledge
    5·1 answer
  • PLEASE HELP WILL MARK BRAINLIST FOR THE BEST ANSWER!
    8·1 answer
  • How long does acid take to get out of your system?
    7·1 answer
  • What is an ionic bond?
    7·2 answers
  • How are most nutrients absorbed through the mucosa of the intestinal villa? A. facilitated diffusion B. bulk flow C. active tran
    5·1 answer
  • How is the relationship between energy different between mechanical waves and electromagnetic waves?
    7·1 answer
  • The branch of biology dealing with interactions among organisms and between organisms and their environment is called
    12·1 answer
  • How is passive transport different from active transport?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!