CIDESCO EXAM PREP EXAM|| ACTUAL EXAM
ALL QUESTIONS AND 100% CORRECT ANSWERS
ALREADY GRADED A+|| LATEST UPDATE 2024
WITH VERIFIED SOLUTIONS|| ASSURED PASS!!!
I Biological and non-biological substances both need oxygen for their existence. II
The human body consists only of biological substances. - ANSWER: I is correct
and II is incorrect
Characteristics of life include: - ANSWER: growth and metabolism
Examples of synthetic substances are: - ANSWER: plastics and silicones
Examples of organic biological substances are: - ANSWER: carbohydrates and
fats
Examples of mineral substances are: - ANSWER: paraffins and petroleum
Matter is everything that: - ANSWER: occupies space and has weight
The three forms of matter are solids, liquids and: - ANSWER: gases
What property does all matter have? - ANSWER: All matter has weight
Condensation is the change of matter from: - ANSWER: a gas to a liquid
Vapourisation is the change of matter from: - ANSWER: liquid to a gas
,2|Pag e
Melting is the change of matter from: - ANSWER: a solid to a liquid
Sublimation is the change of matter from: - ANSWER: a solid to a gas
Condensation is: - ANSWER: the change of a vapour to a liquid
The alteration of the properties of matter without the formation of any new
substance is called a/an: - ANSWER: physical change
The immediate change of a solid into a vapour is called: - ANSWER: sublimation
An example of a single-celled cellular organism is: - ANSWER: a bacterium
I. A micro-organism is the smallest part of the human body. II All micro-organisms
need nutrients for their existence. - ANSWER: I is incorrect and II is correct
Examples of bacteria are: - ANSWER: bacilli and cocci
I. Every living organism needs some non-biological substances for it's existence.
II. All non-biological substances are found as minerals in the earth. - ANSWER: I
is correct and II is incorrect
Science deals mainly with: - ANSWER: physics and chemistry
The study of the structure of the body is called: - ANSWER: anatomy
,3|Pag e
The study of the functions of living organisms is: - ANSWER: physiology
I Anatomy is a very important science in the field of biology. II Anatomy is the
science which deals with the functions of the human body. - ANSWER: I is
correct and II is incorrect
I Physiology is a very important science in the field of biology. II Physiology is the
science which deals with the functions of the body. - ANSWER: I and II are both
correct
Which one of the following belongs to the science of chemistry? - ANSWER: The
alteration of the structure of molecules
I Chemical reactions only take place outside and not inside a living organism. II
The structure of molecules change during chemical reactions. - ANSWER: I is
incorrect and II is correct
The field of physics includes: - ANSWER: heat and electricity
Which one of the following belongs to the field of physics? - ANSWER: Sound,
electricity and heat
The field of physics includes: - ANSWER: the science of electricity
An anion is: - ANSWER: A negatively charged atom
An anion is: - ANSWER: a negatively charged chloride atom (CI-)
, 4|Pag e
A cation is: - ANSWER: A positively charged sodium atom (Na+)
An electrolyte is: - ANSWER: A substance which, dissolved in water, splits into
ions
Examples of electrolytes are: - ANSWER: acids and salts
An example of an electrolyte is: - ANSWER: salt-solution
An acid is an electrolyte because: - ANSWER: it can conduct an electric current
An example of an inorganic acid is: - ANSWER: sulphuric acid
An alkali must contain: - ANSWER: metal atoms and hydroxyl group(s) (OH)
An example of an alkaline substance is: - ANSWER: soap
If a metal-oxide is dissolved in water it forms: - ANSWER: an alkali
The pH scale is used to measure the degree of acidity or: - ANSWER: alkalinity
pH can be decreased by: - ANSWER: increasing hydrogen-ions
The letter p in pH means: - ANSWER: potential
pH is: - ANSWER: the number of free H-ions in solution
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 or Stuvia-credit 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 NURSELINCON. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $29.49. You're not tied to anything after your purchase.