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Worksheets11 HB Revision - Science Inquiry Skills + Cells and Tissues
Total questions: 193
Worksheet time: 3hrs 24mins
When looking through your microscope, if you move your slide to the right the slide appears
to move to the right
to stay the same
to move to the left
vanish
Use the _______ focuses the image under low power.
revolving nosepiece
fine adjustment knob
coarse adjustment knob
arm/neck
The __________ sharpens the image under high magnification.
the diaphragm
fine adjustment knob
coarse adjustment knob
the ocular
The ________ of the microscope would give you the SMALLEST field of view.
low power objective
medium power objective
high power objective
stage
Eyepiece = 10X
Objective lens = 4X
Eyepiece = 20X
Objective lens = 20X
Eyepiece = 15X
Objective lens = 100X
Which way should you move the slide to center the cheek cell?
to the right
to the left
up (away from you)
down (toward you)
The largest field of view shown is under the total magnification _____X.
40
100
400
Ocular Lens: 10X
Scanning Lens: 4X
Low Power Lens: 10X
High Power Lens: 42X
F.O.V for 4X = 3.4 mm
Use this information to figure out big an average bacteria is if 256 fit across the field of view of the high power objective.
Ocular Lens: 10X
Scanning Lens: 4X
Low Power Lens: 15X
High Power Lens: 50X
F.O.V for 4X = 3.4 mm
You are viewing human blood under low power. How much bigger do those cells appear to you through the eyepiece. (compared to what they are in real life)
Ocular Lens: 10X
Scanning Lens: 4X
Low Power Lens: 10X
High Power Lens: 40X
F.O.V for 4X = 3.4 mm
You are viewing human blood under high power. You need to calculate the average size of a red blood cell. You estimate that 51 cells will fit across your F.O.V. What is the average size of one of those red blood cells?
Ocular Lens: 10X
Scanning Lens: 4X
Low Power Lens: 15X
High Power Lens: 50X
You measure the field of view under scanning power as 4.8 mm. Calculate (in micrometers) the field of view that would appear on low power?
Ocular Lens: 10X
Low Power Lens: 20X
High Power Lens: 50X
You measure the field of view under low power to be 2.6 mm
Calculate (in micrometers) the field of view that would appear on high power.
What is the other name of the eyepiece?
Objective
Ocular
Scanner
Viewer
If the ocular has a magnification of 10x and the low power objective is also 10x, what is the total magnification?
(a)
If the ocular has a magnification of 10x and the high power objective is also 40x, what is the total magnification?
(a)
Adding iodine or methylene blue on a slide to enhance the organelles of a specimen is called __________.
marking
staining
labelling
labelling
Why do you place the coverslip at a 45 degree angle before allowing it to cover the specimen?
To center the specimen under the coverslip.
To push air bubbles out as the coverslip falls.
To reduce the risk of breaking the slide.
To make sure the specimen does not get smashed.
Which objective lens has the smallest field of vision?
scanner
low-power
high-power
ocular
Which is not a step in preparing a wet mount?
Clean the slide to remove previous residue.
Place the specimen in the center of a drop of water.
Drop the coverslip straight down on the specimen.
Tap out any bubbles using the back of a probe.
These cells are
Elodea
Anacharis
Cheek
Onion
These cells are
Elodea
Anacharis
Cheek
Onion
What stain was used on these cells.
Water
Iodine
Methylene Blue
Bleach
Can a change in pH alter the active site of an enzyme
yes
no
What is indicated by letter C?
enzyme
product
substrate
active site
What is indicated by letter B?
enzyme
product
substrate
active site
Which statement best describes the enzyme represented in the graphs below?
This enzyme works best at a temperature of 35°C and a pH of 8
This enzyme works best at a temperature of 50°C and a pH of 12
Temperature and pH have no influence on the activity of this enzyme
This enzyme works best at a temperature above 50°C and a pH above 12
Which of these is NOT true.
Enzymes can denature (change shape) when the temperature gets too high.
Enzymes can only be used once in a chemical reaction.
Enzymes can denature when the pH changes.
Enzymes speed up chemical reactions.
When the temperature or pH causes the enzyme to change so it no longer works, this is called ....
Allosteric inhibition
Substrate concentration
Denaturation
Active Site transference
In an experiment, the ___________ variable is tested by the researcher to observe its effect(s) on the ___________ variable.
Independent; dependent
Extraneous; confounding
Dependent; independent
Independent; extraneous
Which group in an experiment is exposed to the independent variable?
Control Group
Experimental Group
Participant Group
All groups
In a study of pain medications, injections of a saline solution (which contains no chemicals) were shown to be quite effective for relieving pain. This is an example of
the experimenter effect
the placebo effect
an order effect
use of non-standardised instructions and procedures
Single-blind procedures control for ______________, while double-blind procedures also control for _______________.
the experimenter effect; the placebo effect
order effects; the placebo effect
the placebo effect; the experimenter effect
the placebo effect; order effects
What is an ethical consideration?
making sure you research does not cause harm or offence
when people are different colours
making sure your research causes harm or offence
when you are polite to people
What is informed consent?
when people involved in your research are told
when people involved in your research are not told
when people involved in your research are paid
when people involved in your research are not paid
What is anonymity?
Not telling someone you are researching them
Keeping someone’s identity secret.
Not putting your name on your research
Telling all of the names
What is confidentiality?
Not putting someones name on their research
need for researchers to tell people that they are being studied
Need for researchers not to publish personal details of respondents
To only research people that you know
The purpose of ethical guidelines in research is to
Ensure that the participants are safe
Enable ethical deception
To ensure participants are paid for their time
Ensure the study get valid results
When written informed consent is obtained, participants must be told________of the experiment
The aim and hypothesis
The method and pay rate
The nature and purpose
Method and outcome
Does a reason have to be given to withdraw from a study?
Yes
No
Obtaining informed consent means the research must make sure to provide participants with:
General overview of the study purpose and risks
Information about the study methods and design
Reports include the study results and conclusions
The choice of being in the control or intervention group
Is it ok to talk about your findings with people that are interested in the results
Yes
No
I carry out research on chemical weapons. I test some chemicals on people. It burns their skin and leaves permanent scarring. Which ethical research rule have I not respected?
informed consent
cause no harm
right to withdraw
confidentiality
deceptive practices
I carry out research on chemical weapons. I test some chemicals on people. I don't tell them that the chemicals could burn their skin. Which ethical research rule have I not respected?
informed consent
cause no harm
right to withdraw
confidentiality
deceptive practices
I carry out research on chemical weapons. I test some chemicals on people who are in prison. Some want to withdraw from the experiments but I don't let them. They're prisoners so I can do what I want to them. Which ethical research rule have I not respected?
informed consent
cause no harm
right to withdraw
confidentiality
deceptive practices
I carry out research on chemical weapons. I test some chemicals on people. When I reach the end of the experiment, I publish the results in the newspapers and go on TV to talk about my studies. I show photos of the people who took part. Which ethical research rule have I not respected?
informed consent
cause no harm
right to withdraw
confidentiality
deceptive practices
I want to carry out research on chemical weapons but I have problems finding volunteers to test the chemicals on. So I just invent the data and pretend I did the experiments. Which ethical research rule have I not respected?
informed consent
cause no harm
right to withdraw
confidentiality
deceptive practices
Participants and the data gained from them must be kept anonymous unless they give their full consent. No names must be used in a lab report. Which ethical guideline is this?
informed consent
protection of participants
deception
confidentiality
The goals of ethical standards are to...
foster human welfare
promote dignity of the individual
maintain scientific integrity
all of the above
The researcher must also ensure that if vulnerable groups are to be used (elderly, disabled, children, etc.), they must receive special care. Which ethical guideline is this?
informed consent
protection of participants
deception
confidentiality
Confidentiality of a participant is best exemplified in which of the following actions?
Asking the participant to write his or her name in the questionnaire
Not mentioning his or her name in the Participants of the Study section
Introducing himself or herself in an interview
Taking his or her picture and placing it in the appendix
Informed consent for a participant is best exmplefied in which of the following actions?
talking to him or her privately
surprising him or her with a questionnaire
writing him or her a letter
using a padrino system
If the participants feel unhappy for any reason with the research after the de-briefing, what must they be given
Informed consent
Anonymity
The right to withdraw their data
Payment
If participants are deceived, which other ethical issue does this automatically create?
Lack of privacy
lack of informed consent
Lack of right to withdraw
Lack of confidentiality or anonymity
Which of the following best relates to ethical issues when researching with babies?
Asking for adults’ permission to research because babies are incapable of showing a degree of consent
Getting babies to make a hand print to stand for a signature on a consent form
Seeing consent and withdrawal of consent as an ongoing issue and responding to the cues of the baby
Babies don’t remember so if they are upset you don’t need to worry about it
Cells are...
groups of tissues that together carry out a particular function.
groups of organs that together carry out a particular function.
the structural and functional units of all living things.
only found in animals.
Tissues are...
groups of cells that together carry out a particular function.
groups of organs that together carry out a particular function.
the smallest functional units of all living things.
only found in animals.
Molecules are made up of...
cells.
organs.
tissues.
atoms.
When it comes to biological organisation, the highest level is...
cells.
organs.
body systems.
organisms.
The organ you would find in the circulatory system is...
the liver.
the heart.
the bladder.
the large intestine.
The kidneys and bladder are parts of the...
circulatory system.
nervous system.
excretory system.
digestive system.
Organs are...
groups of cells that together carry out a particular function.
groups of tissues that together carry out a particular function.
groups of body systems that make up an organism..
unicellular.
The body system you would find the small intestine in is the...
circulatory.
respiratory.
digestive.
excretory.
The body system you would find the lungs in is the...
circulatory.
digestive.
nervous.
respiratory.
Anatomy is the study of...
the way different parts of the body function.
the shape or structure of parts of the body.
both the structure and function of different parts of the body.
the way cells work together to perform a particular function.
Physiology is the study of...
the way different parts of the body function.
the shape or structure of parts of the body.
both the structure and function of different parts of the body.
the way cells work together to perform a particular function.
The liver is part of the...
nervous system.
circulatory system.
excretory system.
digestive system.
The picture that best shows a tissue is...
The picture that best shows an organ is...
The picture that best shows a molecule is...
The picture that best shows an organism is...
What do lots of a specific type of cell make up?
Tissues
Organs
Cell membrane
What do multiple different tissues make up?
Cells
More tissue
Organs
Limbs
Cells are...
groups of tissues that together carry out a particular function.
groups of organs that together carry out a particular function.
the structural and functional units of all living things.
only found in animals.
The brain is part of the...
nervous system.
circulatory system.
excretory system.
digestive system.
This type of tissue relays messages
epithelial
connective
muscular
nervous
The yellow and brown portion of this image is:
protein
phopholipid
carbohydrate
cholesterol
Examples of particles that can diffuse across through the phospholipid bilayer include:
oxygen and carbon dioxide
sugar
water
calcium ions
when some molecules can cross the membrane while others cannot.
Identify the cellular structure that diffusion occurs across.
ribosome
mitochondria
cytoplasm
cell membrane
chloroplast
Identify the cellular structure that is mostly water and is the jelly-like fluid in the cell.
ribosome
mitochondria
cytoplasm
cell membrane
chloroplast
Select the four organic macromolecules.
nucleic acids
proteins
lipids
amino acids
carbohydrates
Passive Transport is the movement of particles across the membrane from an area of [ ___ ] to an area of [ ___ ]
high to low
low to high
low to low
high to high
Passive Transport is the movement of particles _________ the concentration gradient.
with
against
opposing
throughout
An example of diffusion is
CO2 and O2 exchange in the lungs
Glucose transport
Na+ / K+ Pumps
Exocytosis
An example of facilitated diffusion is
CO2 and O2 exchange in the lungs
Glucose transport
Na+ / K+ Pumps
Endocytosis
Facilitated diffusion needs what to get particles from one side of the membrane to the other?
a membrane-spanning protein
a surface protein
a phospholipid
a carbohydrate
