QUIZ TIME

📄BIOLOGY Questions

1. Which of the following is an example of a simple carbohydrate?
a. Starch
b. Cellulose
c. Glucose
d. Glycogen

2. Which of the following is an example of a complex carbohydrate?
a. Glucose
b. Sucrose
c. Starch
d. Fructose

3. Which of the following vitamins is water-soluble?
a. Vitamin A
b. Vitamin D
c. Vitamin E
d. Vitamin C

4. Which of the following minerals is important for bone health?
a. Iron
b. Calcium
c. Zinc
d. Selenium



5. Which of the following trace minerals is required for the synthesis of thyroid hormones?
a. Iron
b. Zinc
c. Iodine
d. Copper

6.  Which of the following is a condition that can occur due to a lack of carbohydrates in the diet?
a. Diabetes
b. Obesity
c. Anemia
d. Ketosis

7. Which of the following is a common symptom of iron deficiency?
a. Diarrhea
b. Anemia
c. Night blindness
d. Beriberi

8. An elderly man complains of poor night vision. Ophthalmic exam reveals corneal lesions and retinal hemorrhages. Which vitamin deficiency is most probable?
a) Thiamine
b) Niacin
c) Vitamin A
d) Vitamin C

9. What is the probability of having a child with cystic fibrosis if both parents are carriers of the gene but do not have the disease?
a. 0%
b. 25%
c. 50%
d. 75%

10. An older adult with a poor diet is diagnosed with megaloblastic anemia. Which vitamin deficiency is the most probable cause?
a) Folate
b) Vitamin B12
c) Vitamin C
d) Vitamin D

11. Which of the following is an example of a dominant genetic disorder?
a. Huntington's disease
b. Sickle cell anemia
c. Cystic fibrosis
d. Hemophilia

12. Which of the following is a bacterial disease that is typically spread through contaminated food or water?
a. Tuberculosis
b. Tetanus
c. Cholera
d. Malaria

13. Which of the following is a common method of controlling the growth of microorganisms in food?
a. Refrigeration
b. Exposure to sunlight
c. Adding sugar
d. Washing with soap and water

14. Which of the following is a recommended way to reduce the risk of heart disease?
a. Smoking cigarettes
b. Eating a high-fat diet
c. Regular exercise
d. Avoiding fruits and vegetables

15. A 4-year-old child is brought to the clinic with complaints of bone pain and difficulty walking. Physical examination reveals bowed legs and enlarged joints. Radiographic findings show abnormal bone growth. Which vitamin deficiency is the most likely cause of these symptoms?

A. Marasmus
B. Scurvy
C. Rickets
D. Kwashiorkor

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Which sentence is grammatically correct?
A. Let us eat, John.

B. Let us eat John.

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Try it

I am thinking of a two-digit number. If I write 3 to the left of my number, and double this three digit number, the result is 27 times my original number. What is my original number?

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Can a polynomial function have more than one y-intercept?

Yes/No
Put your answer as s comment
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BIOLOGY multiple-choice questions on microorganisms along with their answers and brief explanations:

1. Which of the following is a characteristic feature of prokaryotic cells?

• A) Membrane-bound organelles

• B) Nucleus

• C) Circular DNA

• D) Multicellular structure
Answer: C) Circular DNA
Explanation: Prokaryotic cells, such as bacteria, typically have a single circular DNA molecule that is not enclosed within a nucleus.

2. What is the primary role of decomposer microorganisms in an ecosystem?

• A) Photosynthesis

• B) Nitrogen fixation

• C) Decomposition of organic matter

• D) Pathogen resistance
Answer: C) Decomposition of organic matter
Explanation: Decomposers, including certain bacteria and fungi, break down dead organic matter, recycling nutrients back into the ecosystem.

3. Which type of microorganism is primarily responsible for the fermentation process in bread-making?

• A) Bacteria

• B) Viruses

• C) Yeast

• D) Protozoa
Answer: C) Yeast
Explanation: Yeast, particularly Saccharomyces cerevisiae, ferments sugars in dough, producing carbon dioxide that causes the bread to rise.

4. Which of the following diseases is caused by a virus?

• A) Tuberculosis

• B) Malaria

• C) Influenza

• D) Ringworm
Answer: C) Influenza
Explanation: Influenza is caused by the influenza virus, while tuberculosis is caused by bacteria, malaria by protozoa, and ringworm by fungi.

5. What structure protects bacterial cells from environmental stress and provides shape?

• A) Cell membrane

• B) Cytoplasm

• C) Peptidoglycan cell wall

• D) Ribosomes
Answer: C) Peptidoglycan cell wall
Explanation: The peptidoglycan cell wall provides structural support and protection to bacterial cells, maintaining their shape.

6. Which of the following microorganisms can be used in biotechnology for gene cloning?

• A) Viruses

• B) Fungi

• C) Bacteria

• D) All of the above
Answer: D) All of the above
Explanation: All these microorganisms can be utilized in various biotechnological applications, including gene cloning, depending on the method and desired outcome.

7. What is the main method of transmission for the bacteria that causes cholera?

• A) Airborne droplets

• B) Contaminated water

• C) Direct contact

• D) Insect bites
Answer: B) Contaminated water
Explanation: Cholera is primarily transmitted through drinking water contaminated with the bacterium Vibrio cholerae.

8. Which of the following microorganisms is known for its role in nitrogen fixation?

• A) Escherichia coli

• B) Rhizobium

• C) Streptococcus

• D) Clostridium
Answer: B) Rhizobium
Explanation: Rhizobium is a genus of bacteria that form symbiotic relationships with leguminous plants, converting atmospheric nitrogen into a form usable by plants.

9. Which type of microorganism can reproduce both sexually and asexually?

• A) Bacteria

• B) Viruses

• C) Fungi

• D) Archaea
Answer: C) Fungi
Explanation: Fungi can reproduce both sexually (through spore formation) and asexually (through budding or fragmentation).

10. What is the primary function of antibiotics?

• A) To kill viruses

• B) To inhibit bacterial growth

• C) To enhance immune response

• D) To promote viral replication
Answer: B) To inhibit bacterial growth
Explanation: Antibiotics are designed to target and inhibit the growth of bacteria, making them effective against bacterial infections but ineffective against viruses.

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1. Which of the following is true about the zero(s) of a function f(x)?(UEE)

A. If f(a) = 0, then x - a is a factor for f(x).
B. If f(a) = 0, then (x + a)² is a factor of f(x).
C. If f(a) = 0, then a is not necessarily in the domain.
D. If f(a) = 0, then y = a is the y-intercept.

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🎓🎓🎓🎓🎓🎓🎓🎓🎓
*OPPOSITE WORDS📚*

*🐜🅰🍎*

absent × present
accept × decline, refuse
accurate × inaccurate
admit × deny
advantage × disadvantage
agree × disagree
alive × dead
all × none, nothing
always × never
ancient × modern
answer × question
apart × together
appear × disappear, vanish
approve × disapprove
arrive × depart
artificial × natural
ascend × descend
attractive × repulsive
awake × asleep


*🏃🏼🅱🏏*
backward × forward
bad × good
beautiful × ugly
before × after
begin × end
below × above
bent × straight
best × worst
better × worse, worst
big × little, small
black × white
blame × praise
bless × curse
bitter × sweet
borrow × lend
bottom × top
boy × girl
brave × cowardly
build × destroy
bold × meek, timid
bound × free
bright × dim, dull
brighten × fade
broad × narrow

*🐈C🐄*

calm × windy, troubled
capable × incapable
careful × careless
cheap × expensive
cheerful × sad, discouraged, dreary
clear × cloudy, opaque
clever × stupid
clockwise × counterclockwise
close × far, distant
closed × open
cold × hot
combine × separate
come × go
comfort × discomfort
common × rare
contract × expand
cool × warm
correct × incorrect, wrong
courage × cowardice
create × destroy
crooked × straight
cruel × kind
compulsory × voluntary
courteous × discourteous, rude

*🐕D💧*

dangerous × safe
dark × light
day × night
dead × alive
decline × accept, increase
decrease × increase
deep × shallow
definite × indefinite
demand × supply
despair × hope
disappear × appear
diseased × healthy
down × up
downwards × upwards
dry × moist, wet
dull × bright, shiny

*👁E🐘*

early × late
east × west
easy × hard, difficult
empty × full
encourage × discourage
end × begin, start
enter × exit
even × odd
export × import
external × internal

*🐠F🐟*

fade × brighten
fail × succeed
false × true
famous × unknown
far × near
fast × slow
fat × thin
few × many
find × lose
first × last
foolish × wise
fold × unfold
forget × remember
found × lost
friend × enemy

*🏃🏾‍♀G👷🏻‍♀*

generous × stingy
gentle × rough
get × give
girl × boy
glad × sad, sorry
gloomy × cheerful
good × bad
great × tiny, small, unimportant
guest × host
guilty × innocent

*🐇H🐎*

happy × sad
hard × easy
hard × soft
harmful × harmless
hate × love
healthy × diseased, ill, sick
heaven × hell
heavy × light
here × there
high × low
hill × valley
horizontal × vertical
hot × cold
humble × proud

*🍧I🍨*

in × out
include × exclude
inhale × exhale
inner × outer
inside × outside
intelligent × stupid, unintelligent
interior × exterior

*🥔J🤡*

join × separate
junior × senior

*🗝K🔑*

knowledge × ignorance
known × unknown

*🕹L🔒*

landlord × tenant
large × small
last × first
laugh × cry
lawful × illegal
leader × follower
left × right
less × more
like × dislike, hate
limited - boundless
little × big
long × short
loose × tight
loss × win
loud × quiet
low × high

*👨‍💼M🐒*

major × minor
many × few
mature × immature
maximum × minimum
melt × freeze

*🥅N👃*

narrow × wide
near × far, distant
never × always
new × old
no × yes
noisy × quiet
none × some
north × south

*🍊O🦉*

odd × even
offer × refuse
old × young
on × off
open × closed, shut
opposite × same, similar
out × in
over × under
*🎹P🥜*

past × present
peace × war
permanent × temporary
plural × singular
polite × rude, impolite
possible × impossible
powerful × weak
pretty × ugly
private × public
pure × impure, contaminated
push × pull

*❓Q🤴*

qualified × unqualified
quiet × loud, noisy

*🌹R✅*

raise × lower
rapid × slow
rare × common
regular × irregular
real × fake
rich × poor
right × left, wrong
rough × smooth

*🌞S🐍*

safe × unsafe
secure × insecure
scatter × collect
separate × join, together
shallow × deep
shrink × grow
sick × healthy, ill
simple × complex, hard
singular × plural
sink × float
slim × fat, thick
sorrow × joy
start - finish
strong × wea
success × failure
sunny × clouds.

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🛑All these words mean : very good

  👌Great
  👌Fantastic
  👌Wonderful
  👌Splendid
  👌Excellent
  👌Amazing
  👌Incredible
  👌Awesome
  👌The best
  👌Impressive
  👌Breathtaking
  👌Marvellous
  👌Unbelievable
  👌Remarkable
  👌Astonishing
  👌Extraordinary
  👌Fascinating
  👌Mind blowing
  👌Unimaginable
  👌Magnificent
  👌Tremendous

#Vocabulary

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1. For which of the following does its graph lie both above and below the x-axis? (2002 UEE)

(A) f(x) = (x + 1)²(2 – x)²
(B) f(x) = –(x + 2)²(x – 1)²
(C) f(x) = (x² + 1)(x – 1)²
(D) f(x) = (x + 1)²(x² – 1)

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Cont-
phrasal verbs that you should know:
69. Blow up = explode
70. Book in = check in at a hotel
71. Call up= telephone
72. Cap off = finish / complete
73. Care for = like
74. carry off = win/succeed
75. Carry on = continue
76. Add on = include
77. Ask over = invite
78. Back away = retreat / go backwards
79. Back off = retreat
80. Bag out = criticize
81. Bull up = confuse / complicate
82. Bear on = influence / affect
83. Give up = quit / stop trying
84. Keep on = continue
85. Put off = postpone
86. Turn up = appear suddenly
87. Take after = resemble
88. Bring up = raise (children)
89. Fill out = complete a form
90. Drop out of = leave school
91. Do over = repeat a job / task
92. Fill up = fill to capacity
93. Look over = examine / check
94. Put away = save / store
95. Put out = extinguish
96. Set up = arrange/ begin
97. Throw away = discard
98. Cut down on= curtail ( expenses)
99. Try out = test
100. Turn off = repulse

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Will Vs be going to
💥 both "will" and "be going to" can refer to future actions, but they convey different meanings depending on the context.

☑️ Let's see their difference in a brief way

▎1. Usage of "Will"

a. Spontaneous Decisions:
"Will" is often used when making decisions at the moment of speaking.

• Example:

• Situation: You’re at a restaurant and your friend asks if you want dessert.

• Response: "I will have the chocolate cake."

b. Promises or Offers:
"Will" can express promises or offers.

• Example:

• Situation: You want to help a friend move.

• Response: "I will help you with your move this weekend."

c. Predictions Based on Beliefs or Opinions:
"Will" is used for predictions that are not based on present evidence but rather on beliefs or assumptions.

• Example:

• Situation: You believe it will rain tomorrow based on your intuition.

• Response: "I think it will rain tomorrow."

▎2. Usage of "Be Going To"

a. Planned Actions:
"Be going to" indicates an intention or plan made before the moment of speaking.

• Example:

• Situation: You have already made plans to travel.

• Response: "I am going to visit my grandparents next month."

b. Predictions Based on Present Evidence:
"Be going to" is used for predictions based on current evidence or situations.

• Example:

• Situation: You see dark clouds in the sky.

• Response: "It looks like it is going to rain."

▎3. Questions and Answers

👉 Here are five multiple-choice questions focused on the use of "will" and "be going to," along with their correct answers:

### Question 1:
Which sentence correctly uses "will"?
A) I am going to finish my homework later.
B) I will finish my homework now.
C) I am going to visit my friend tomorrow.
D) I will be going to the store later.

Correct Answer: B) I will finish my homework now.

### Question 2:
Choose the sentence that uses "be going to" correctly.
A) She will call you when she arrives.
B) They are going to play soccer this weekend.
C) He thinks it will rain today.
D) I will be studying all night.

Correct Answer: B) They are going to play soccer this weekend.

### Question 3:
Which option best completes the sentence? "Look at those dark clouds! It___rain soon."
A) will
B) is going to
C) is
D) can

Correct Answer: B) is going to

### Question 4:
Select the correct sentence that indicates a spontaneous decision.
A) I am going to buy a new phone next month.
B) I think I will buy a new phone.
C) I am going to start exercising regularly.
D) She is going to join us for dinner.

Correct Answer: B) I think I will buy a new phone.

### Question 5:
Which sentence expresses a promise?
A) I will help you with your homework.
B) I am going to help you with your homework.
C) I think I will help you with your homework.
D) I am going to finish my report tomorrow.

Correct Answer: A) I will help you with your homework.

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Say more politely
Caalaatti safuudhaan jedhi
በትህትና መናገር ስንፈልግ 👇👇


❌ I want another coffee.
✅ I'd like another coffee.

❌ What?
✅ Could you repeat that, Please

❌ What time is it?
✅ Could you tell me the time, Please?

❌ Hey, where's the museum?
✅ Excuse me, could you tell me where the museum is?

❌ Tell me when you available?
✅ Let me know when you're available?

❌ Give me your contact ddetails?
✅ Can I have your contact details, Please?

❌ You are wrong.
✅ I think you might be mistaken.


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🛑✅✅✅✅✅✅✅
✅This list provides common English contractions and their expanded forms.
✅Note that the meaning of some contractions depends on the sentence context.

👉aren’t = are not
👉can’t = cannot
👉could’ve = could have
👉couldn’t = could not
👉didn’t = did not
👉doesn’t = does not
👉don’t = do not
👉gonna = going to
👉gotta = got to, got a
👉hadn’t = had not
👉hasn't = has not
👉haven't = have not
👉he’d = he had, he would
👉he’ll = he shall, he will
👉he’s = he has, he is
👉how’d = how did, how would
👉how’ll = how will
👉how’s = how has, how is
👉I’d = I had, I would
👉I’ll = I shall / I will
👉I’m = I am
👉I’ve = I have
👉isn’t = is not
👉it’d = it would
👉it’ll = it shall, it will
👉it’s = it has, it is
👉mightn’t = might not
👉might’ve = might have
👉mustn’t = must not
👉must’ve = must have
👉Shouldn't = should not
👉you're = you are
👉you've = you have

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