CompTIA
Checkpoint
ISC
HP
Dell
EC-Council
EXIN
Fortinet
ITIL®
Juniper
PMI
Microsoft
VMware
Avaya
Google
Salesforce
Amazon
Palo Alto Networks
Certiport
ISC2
All Vendors
  2. Home
  3. Exams
  4. Test Prep
  5. CLEP Science and Mathematics

Free CLEP Science and Mathematics Exam Braindumps (page: 4)

Page 4 of 127
PDF with 494 Questions

Experiments involving the reduction of the blue dye DPIP, which loses its blue color and becomes clear as it absorbs electrons, have shown that the dye shows the greatest loss of color when in the presence of chloroplasts

  1. under bright, white light
  2. in a dark box
  3. that have been boiled before exposure to light
  4. exposed only to green light
  5. in a sugar solution

Answer(s): A

Explanation:

If DPIP is reduced (gains electrons) to lose its color, then the DPIP will show the greatest loss of color wherever the greatest number of electrons are being knocked around. Chlorophyll loses electrons when it is bombarded by photons of light. Thus, only chlo-roplasts in bright, white light will change DPIP greatly. Boiled chloroplasts will be ineffective due to enzyme denaturation, and chloroplasts in the dark or exposed only to green light will absorb few photons if any. Chloroplasts have no direct effect on sugar production; thus being in a sugar solution should not affect this reaction with DPIP in any way.



In humans, carbon dioxide in the bloodstream is mainly transported from cells to lungs

  1. as bicarbonate ion
  2. as carbon dioxide gas bubbles within red blood cells
  3. attached to hemoglobin
  4. as carbonic acid
  5. as carbon dioxide gas bubbles within the plasma

Answer(s): A

Explanation:

Carbon dioxide produced by the body's cells mixes with water in the bloodstream to form carbonic acid, which then dissociates into H+ and HC03- (bicarbonate) ions. The hydrogen ions are complexed to hemoglobin in the red blood cells while the bicarbonate ions generally remain in the plasma during the trip to the lungs.



A newly discovered organism has ribosomes that can be inhibited by the antibiotic streptomycin as well as free-floating DNA not enclosed within a nuclear membrane. This organism is most likely a(n)

  1. virus
  2. plant
  3. fungus
  4. protist
  5. bacterium

Answer(s): E

Explanation:

Bacteria, which are prokaryotes, are classified as such due to their lack of a nuclear membrane housing their DNA. In addition, antibiotics are drugs used to kill bacteria only and do not harm other living organisms or viruses.



In or around the cells of flowering plants, one would expect to find all of the following EXCEPT

  1. cell walls
  2. mitochondria
  3. centrioles
  4. large, central vacuoles
  5. chloroplasts

Answer(s): C

Explanation:

Flowering plants, just like other plants, should be expected to possess chloroplasts, mitochondria, cell walls, and large centralized vacuoles. However, plant cells, unlike animal cells, have no centrioles to act as microtubule organizing centers for cell division.



Page 4 of 127



Post your Comments and Discuss Test Prep CLEP Science and Mathematics exam with other Community members:

Marc commented on October 18, 2024
What the best way to learn terraform?
UNITED STATES
upvote

murad commented on October 18, 2024
Very helpful for certs
JORDAN
upvote

Jack commented on October 18, 2024
are these legit ?
Anonymous
upvote

Juan commented on October 18, 2024
From until what page number is enough to pass the certification?
Anonymous
upvote

Sandeep commented on October 18, 2024
This is very helpful for exam crack
UNITED STATES
upvote

Cheron commented on October 18, 2024
Before all i thank to you for your support. I passed my 2 exams I purchased with full version. I got 90% in one exam and in 2 exam I got 86%.
Anonymous
upvote

LA commented on October 18, 2024
Hi there, I have scheduled my EXAM and will share my experience if these questions are valid or not.
Anonymous
upvote

Mazin commented on October 18, 2024
Good questions
Anonymous
upvote

Test commented on October 18, 2024
Test are these teak answeres?
Anonymous
upvote

anonymous commented on October 17, 2024
can someone tell me if this is real questions
UNITED STATES
upvote

Steven commented on October 17, 2024
Questions are spot on and I passed the exam.
UNITED STATES
upvote

Ntombi commented on October 17, 2024
i find the questions helpful for my exam preparation
Anonymous
upvote

Ntombi commented on October 17, 2024
The questions help me to see if I understood what I have learned
Anonymous
upvote

ntombi commented on October 17, 2024
writing exam at the end of the month
Anonymous
upvote

Apvj commented on October 17, 2024
Need to update section 5 questions,it was all new question today in exam , unitl section 4 it was fine even though pattern of question changed
Anonymous
upvote

ghada commented on October 17, 2024
it helps a lot
Anonymous
upvote

John commented on October 17, 2024
Good mock exam
Anonymous
upvote

test commented on October 17, 2024
Good content
UNITED STATES
upvote

Manoo commented on October 17, 2024
Hello guys, I hope everyone is doing good and preparing for this exam. I just wanted to share my experience about my exam. I wrote this exam yesterday and I passed. The key is to focus on each topic and memorize all these questions. You see most of them in your test. Good luck
INDIA
upvote

Ad commented on October 17, 2024
Hi I am new to IT
Anonymous
upvote

sadai commented on October 17, 2024
I really apricate this helpful test thank you so much
Anonymous
upvote

Lee commented on October 17, 2024
This is a very good resource. I'm glad this is provided for free for everyone to pass their exam. I'm sure everyone knows how difficult these exams are.
UNITED STATES
upvote

BANKEY BIHARI LAL commented on October 17, 2024
Very good mock exams as per the actual exam standards.
INDIA
upvote

Faruk commented on October 17, 2024
is free content is enough for pas az-900 ?
Anonymous
upvote

chad johnson commented on October 16, 2024
learning from this test
UNITED STATES
upvote

Keketso commented on October 16, 2024
This is a valuable resource for Az-900, i think
Anonymous
upvote

MP commented on October 16, 2024
Still Preparing Hopefully these are helpful
UNITED STATES
upvote

dado commented on October 16, 2024
cool thanks
BELGIUM
upvote

Harry commented on October 16, 2024
Thanks for the sample exam!
UNITED STATES
upvote

Rajesh K commented on October 16, 2024
fantastic contents provided by free braindumps, it is improving my accuracy.
Anonymous
upvote

chris commented on October 16, 2024
this dumps is very helpfull
Anonymous
upvote

Kiran commented on October 16, 2024
These are related questions
UNITED STATES
upvote

raj singh commented on October 16, 2024
This is a good resource for az-900, go for it.
INDIA
upvote

Gobenathan commented on October 16, 2024
This is a good exam done but the free version is not complete the PDF version has all the question. that is what I used to pass my exam.
INDIA
upvote