2019 NECO GCE Biology Questions and Answers – NECO GCE Expo

National Examination Council, NECO GCE Biology Questions and Answers for 2019 NECO GCE Examination is now available, subscribe now and get the questions and already solved answers by Examrelief.
NECO GCE Biology Questions and Answers

ATTENTION:- KINDLY NOTE THAT SUBSCRIBERS GET ANSWERS BEFORE EACH PAPER, ALWAYS SUBSCRIBER FOR EARLIER ANSWERS

👑 2019 NECO GCE BIOLOGY ANSWERS👑

100% VERIFIED BIOLOGY OBJ ANSWERS

1-10: CEDDCEDEAC
11-20: EACEBDDBAC
21-30: DCEEBDBEDB
31-40: ADBCC
CCCCC
41-50: EDCBBBCADA
51-60: EEEB
ADECCB

100% VERIFIED BIOLOGY THEORY ANSWERS

NOTE: You are to asnwer any THREE questions. We answered FOUR questions [1, 2, 3, 5], so pick any three!!!

(1ai)
Transpiration is the process where plants absorb water through the roots and then give off water vapor through pores in their leaves.

(1aii)
PLS TABULATE:

MITOSIS:
(i) Occurs in somatic cell/growth of somatic cells; (ii) Diploid cell formed
(iii) Two daughter cells are formed (iv) Chromosome number of parent is same as that of daughter cell

MEOSIS:
(i) Occurs during gamete/sex cell production
(ii) Haploid cell formed
(iii) Four daughter cells are formed
(iv) Chromosome number of parent twice that of daughter cells

YOU MAY ALSO LIKE:  2017 NECO GCE Agricultural Science Alt to Practical Answers/Expo/Dubs/Runz

(1b)
[Pick any FOUR]
(i) They are protein in nature
(ii) They remain chemically unchanged at the end of a reaction;
(iii) They are denatured/destroyed at high temperature/inactivated at very cold temperatures
(iv) Enzyme action is retarded by poison or inhibitors
(iv) Enzymes are soluble
(vi) They speed up rate of biochemical reactions in cells

(1bii)
(i) Coitus interruptus (withdrawal method)
(ii) Safe period or rhythm method
(iii) Sterilization of men/vasectomy
(iv) Use of condoms

(1ci)
Human beings are solely dependent on photosynthetic plants for their oxygen requirements
(ii) It decreases the concentration of carbon dioxide and other harmful industrial wastes that leads to respiratory problems in living beings.

(1cii)
[Pick any TWO]
(i) Gonorrhea
(ii) Human Immunodeficiency Virus (HIV)
(iii) Syphilis
(iv) Genital Herpes

(1ciii)
(i) Sutures found between the bones of the skull
(ii) Syndesmosis between long bones of the body
============================

(2a)
Draw the diagram [CLICK HERE]

(2bi)
(i) Eye lids
(ii) Conjunctiva

(2bii)
(i) Cutting
(ii) Layering
(iii) Budding

(2ci)
(i) Precipitation.
(ii) Evaporation.
(iii) Condensation.

(2cii)
(i) Pressure
(ii) Waves
(iii) Sunlight
(iv) Turbidity
==========================

(3ai)
In a tabular form:

POLLINATION:
(i) It occurs only in flowering plants.
(ii) It involves only one sex cell type (male).
(iii) It requires external agents.
(iv) No fusion of gametes involved.

FERTILIZATION:
(i) Occurs in all sexually reproductive plants.
(ii) Involves two sex cells types (male and female).
(iii) Does not require external agents.
(iv) Involves fusion of gametes.

YOU MAY ALSO LIKE:  NECO 2017: 100% Verified Chemistry Obj & Theory Answers Now Available [Expo/Runz/Choke]

(3aii)
(i) Wind
(ii) Insects

(3bi)
(i) Herbivores
(ii) Carnivores
(iii) Omnivores

(3bii)
(i) Herbivores -Goat
(ii) Carnivores – Lion
(iii) Omnivores – Man

(3Ci)
(i) It kills aquatic organisms.
(ii) It makes water unsafe for consumption and domestic uses.
(iii) It reduces light penetration in water hence affecting aquatic plants.
(iv) It puts fishermen out of business.

(3cii)
(i) It transport unwanted materials to sites of excretion
(ii) It transport nutrient to all body cells
(iii) It helps in fighting infection
(iv) It brings about clotting.
==========================

(5ai)
(i) Regulation of extracellular fluid volume. The kidneys work to ensure an adequate quantity of plasma to keep blood flowing to vital organs.
(ii) Regulation of osmolarity.
(iii) Regulation of ion concentrations.
(iv) Excretion of wastes and toxins.
(v) Production of hormones.
(vi) Regulation of pH.

(5aii)
[Pick Any TWO]
(i) Frequent urination.
(ii) Excessive thirst.
(iii) Unexplained weight loss.
(iv) Extreme hunger.

(5b)
[CLICK HERE]

=======COMPLETED=======

Don’t Just Copy Alone, Drop your Comments, Share with your friends on Facebook & Twitter Using the below share buttons and like our Facebook fan pages Here
BEST OF LUCK

1 Comment

Drop a Comment

Note: Your Comment Might take up to 2 mins to be published.



This site uses Akismet to reduce spam. Learn how your comment data is processed.