Exam (elaborations)
PAX Science NLN Exams collection
- Module
- PAX Prep MATH
- Institution
- PAX Prep MATH
PAX Science NLN Exams collection PAX Science NLN Exams collection
[Show more]
Content preview
PAX Science NLN Exams collection n1. A person blows his breath into a straw that is placed in limewater. The
limewater becomes cloudy because the person's breath contains:
carbon dioxide
2. A student focuses sunlight to a point with a thin converging (convex)
lens. Which of these direct measurements can the student make as a result
of this experiment?: The approximate focal length of the lens.
3. A woman suddenly chokes on a piece of food and clutches frantically at
her throat. An immediate remedy is to: apply quick, hard pressures
successively to her abdomen, just beneath her diaphragm.
4.An unknown gas is more dense than air, does not support combustion,
and turns a limewater solution cloudy. This gas is most probably: carbon
dioxide
5. Guard cells which can be found in the leaves of plants are most
closely associated with which of these processes?: Evaporation of
water from the plant.
6. If a red light is passed through a dilute solution of chlorophyll
solution, the spectrophotometer will detect what amount of
transmittance of this light?: 50 - 75%
7. If the medulla of the brain in a human was damaged, which of
these conditions would most likely result?: Difficulty in breathing
8. Night blindness in humans is caused by a lack of: Vitamin A
9. In varieties of matter, the term heterogeneous may be applied to:
mixtures, but not elements or compounds.
10.Heat energy is absorbed in which of these phase changes?: Br2 (l) -
> Br2(g)
11.Periodontitis is an inflammatory condition of the: gum tissue that
sur- rounds the neck of each tooth.
12.The atoms of an element with seven valence electrons are most
probably classified as: nonmetals.
13.The bending of a wave around an obstacle is known as: diffraction
,14.The inherited factors that are transmitted in an organism from
generation to generation are called its: genotype
15.Which of these conditions is associated with smoking?: emphysema
16.Which of these equations best illustrates a synthesis reaction?: 2Na +
Cl2
-> 2NaCl
, 17.Which of these pairs of units measures the same quantity?: Newton
and joule / Newton and watt ?
18.Which of these quantities is a vector quantity?: Force
19.Which of these single instruments may be used to measure the
current flowing through a circuit?: Ammeter
20.Which of these substances contains a nonpolar covalent bond?: O2
21.Which part of the cell structure controls the passage of materials into
and out of the cell?: Plasma membrane.
22.Which part of the human central nervous system controls
voluntary movements?: Cerebrum.
23.While working in the chemistry laboratory, a student spills dilute
hy- drochloric acid on her hand. What is the first action this student
should take?: Flush her hand with large quantities of water.
24.Within which of these structures of the female reproductive tract is
the human egg fertilized?: Fallopian tube.
25.A tincture is a solution in which: alcohol is the solvent.
26.A circuit contains three 3-ohm (W) resistors in series. What is the
equiv- alent resistance of this combination?: 9W
27.A quantity that has both magnitude and direction is called a(n): vector.
28.A recently discovered species has these characteristics: amniotic eggs,
a four-chambered heart, and lightweight, honeycombed bones. Which of
these ADDITIONAL characteristics is likely to be present?: Feathers for
flying.
29.A substance that increases the speed of a reaction by lowering its
acti- vation energy is called: a catalyst
30.An example of an adaptation to prevent water loss in plants is:
waxy epidermis
31.At room temperature, which of these substances exists as
diatomic molecules?: oxygen
32.Compounds with the same type and number of atoms and the same
chemical bonds but different spatial arrangements of these bonds and
atoms are called: structural isomers.
33.The calorie and the kilocalorie are units of: energy
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller NurseFerian. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £9.29. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
81113 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now