Plan Aid Academy Teacher Proficiency Test In Sciences

30 Questions | By Ismaildass | Last updated: Mar 21, 2022 | Total Attempts: 33

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Plan Aid Academy Teacher Proficiency Test In Sciences - Quiz

. Biology Chemistry Physics Combine in One paper

Questions and Answers

1.

In evolution, analogous structures are significant because they show?
- A.
  
  Physiological diversity
- B.
  
  Functional diversity
- C.
  
  Genetic diversity
- D.
  
  Structural diversity
2.

Which of the following statements reflects the mechanism of natural?
- A.
  
  Organisms with selective advantages are less likely to survive
- B.
  
  No organism in a species dies before sexual maturity
- C.
  
  There are variations within every species
- D.
  
  Individuals of every species are genetically identical
3.

Which of the following animals exhibits territoriality?
- A.
  
  Rabbit
- B.
  
  Earthworm
- C.
  
  Toad
- D.
  
  Lizard
4.

The branch of Biology that deals with the principles of classification of organisms is known as ?
- A.
  
  taxonomy
- B.
  
  Ecology
- C.
  
  Nomenclature
- D.
  
  Biological index
5.

Which of the following structures is a tissue?
- A.
  
  Sieve tube element
- B.
  
  Vessel element
- C.
  
  Blood
- D.
  
  Erythrocyte
6.

Which of the following cells are not regarded as specialized?
- A.
  
  Root up cells
- B.
  
  Muscle cells
- C.
  
  Somatic cells
- D.
  
  Sperm cells
7.

Which of the following pairs of cells carry out the same function?
- A.
  
  Spermatozoon and ovum
- B.
  
  Check cell and red blood cell
- C.
  
  Palisade cell and epidermal cell
- D.
  
  Root tip cell and guard cell
8.

If Amoeba is placed in a salt solution. the contractile vacuoles would Options?
- A.
  
  Be bursting more frequently
- B.
  
  be more numerous
- C.
  
  Grow bigger before they burst
- D.
  
  Be formed less frequently
9.

In which of the following habitats is paramecium not fo
- A.
  
  Pond
- B.
  
  Aquarium
- C.
  
  Lake
- D.
  
  Puddle
10.

The following processes are involved in water movement in the endo dermis except?
- A.
  
  Osmosis
- B.
  
  Vascular pathway
- C.
  
  Diffusion
- D.
  
  Active transport
11.

Which of the following sources of energy contributes to green-house effect ?
- A.
  
  Natural gas
- B.
  
  Nuclear
- C.
  
  Wind
- D.
  
  Option 4
12.

Which one do you like?
- A.
  
  Air pollution
- B.
  
  A consequence of global warming is
- C.
  
  Flooding
- D.
  
  Increased humidity
13.

Which of the following metals is common to both brass and bronze ?
- A.
  
  Copper
- B.
  
  Alluminium
- C.
  
  Lead
- D.
  
  Iron
14.

The alkanol obtained from the production of soap is?
- A.
  
  Dihydric Alkanol
- B.
  
  Tri hydric Alkanol
- C.
  
  Monohydric Alkanol
- D.
  
  Tertiary Alkanol
15.

When a compound X is heated with concentrated tetraoxosulphate(VI)acid, it produces an alkene. X is an ?
- A.
  
  Alkane
- B.
  
  Alkyne
- C.
  
  Alkanoate
- D.
  
  Alkanol
16.

Ripening of fruits is hastened by using?
- A.
  
  Ethene
- B.
  
  Ethyne
- C.
  
  Ethane
- D.
  
  Ethanol
17.

Which of the following compounds is/are secondary alkanols ? i) CH CH(CH)CH OH ii) CH CH CH(OH)CH iii) CH C(OH)(CH )CH
- A.
  
  I only
- B.
  
  II and III only
- C.
  
  II only
- D.
  
  I and III only
18.

Consider the following reaction equation: C H + 3O 2CO + 2H O . The volume of oxygen at s.t.p that will be required to burn 14g of ethene is [C H = 28; Molar volume of gas at s.t.p = 22.4dm ?
- A.
  
  33.6dm 3 3 3 3 2 3 3 3 3 2 4(g) 2(g) → 2(g) 2 (l) 2 4 3 333 3
- B.
  
  11.2dm
- C.
  
  3.73dm 3
- D.
  
  64.2dm
19.

Which of the following substances is a non-electrolytes ?
- A.
  
  C 6 H 12 O 6
- B.
  
  NH 4Cl
- C.
  
  CH 3 COOH [C H = 28; Molar volume of gas at s.t.p = 22.4dm
- D.
  
  H 2 SO 4
20.

The oxidation number of sulphur is +4 in ?
- A.
  
  H 2 SO3
- B.
  
  H 2 SO 43
- C.
  
  Na 2 S 2 O3
- D.
  
  All of the above
21.

What determines the polarity at the ends of an electromagnet? The
- A.
  
  Direction of current in the wire
- B.
  
  Material of the coil
- C.
  
  Material of the core of the magnet
- D.
  
  Magnitude of the current passing through the wire
22.

How many beta particle(s) are emitted in the radioactive decay of ?How many beta particle(s) are emitted in the radioactive decay of ?
- A.
  
  1
- B.
  
  2
- C.
  
  3
- D.
  
  5
23.

The phenomenon by which two light atomic nuclear combine to form a heavy nuclide with the release of energy is known as?
- A.
  
  Radioactivity
- B.
  
  Nuclear fusion
- C.
  
  nuclear fission
- D.
  
  chain reaction
24.

In a p-type semiconductor, the ?
- A.
  
  Number of holes are equal to the number of electrons
- B.
  
  Electrical resistivity increases
- C.
  
  Holes are the majority charge carriers
- D.
  
  Electrons are the majority charge carriers
25.

Let Δx be the uncertainty in the measurements of position and Δp the uncertainty in measurement of momentum. The uncertainty principle relation is given as ?
- A.
  
  Δx . Δp ≥h
- B.
  
  Δx . Δp > h
- C.
  
  Δx . Δp ≤ h
- D.
  
  Δx . Δp = h