Page 28 - Genius PBD Science Year 6

Science Year 6 Answers

(iii) Organ: Uterus Subjective Questions
Function: A place where SUMMATIVE PRACTICE 2
an embryo develops and 1. (a) P : Fallopian tube
grows Objective Questions Q : Uterus
(iv) Organ: Vagina (b) The tube receives the sperm
Function: To accept 1. D 2. B 3. A 4. C 5. D (c) (i) W : Ovum
sperms from the penis 6. B X : Sperms
2. (a) sperm (ii) W
(b) fertilisation (iii) R
(c) zygote
(d) embryo
(e) uterus; foetus UNIT 3 Microorganisms
(f) waste products
3. (a) (i) To increase the number 3.1 Life Processes and Effects of Microorganisms
of human population 1. (a)
(ii) To prevent human from Microorganisms
extinction
(b) Pupil’s answer

2.2 Nervous System Bacteria Virus Alga Protozoa Fungi
4. (a) (i) Central nervous system
(ii) Peripheral nervous Bacillus HIV Chlamydomonas Euglena Rhizopus
system Escherichia coli Influenza Phytoplankton Amoeba Mushroom
P : Brain
Q : Spinal cord (b) Microorganism is a microscopic (c) Cause food spoilage and
R : Network of nerves organism which cannot be food poisoning
(b) P – Coordinates the voluntary seen with the naked eyes. 5. Food poisoning happens because
and involuntary actions. 2. A (a) There are black spots on the bacteria found in the spoilt
Q – Relays information from the bread. food spreads and releases toxic in
the whole body to the (b) The black spots show the the human intestines. Meanwhile
brain and from the brain presence of fungi on the food spoilage happens when
to the rest of the body. surface of the bread. microorganisms spoil the food
Q – Controls part of the reflex (c) Tick (✓) at (iii). and causes changes in texture,
actions. (d) To encourage the growth appearance, smell and taste.
(c) (i) Relays signals from the of fungi. 6. (a) Microorganisms caused the
whole body to the central (e) Microorganisms grow boy to have cold and cough.
nervous system (b) Antibiotics are made from
(ii) Relays command signals and reproduce. microorganisms. Antibiotics
from the central nervous B (a) The dough rises because can strengthen the body’s
system to the rest of the the yeast releases gas. immune system.
body (b) Carbon dioxide (c) Some of the microorganisms
(c) Microorganisms breathe
5. (a) very important C (a) A moving living thing are dangerous and some
(b) brain present. of the microorganisms are
(c) injuries (b) Microscope useful in life.
(d) rest of the body (c) Microorganisms move 7. Students’ answer
(e) central
3. (a) (i) Temperature
6. (a) (i) Eating a balanced diet (b) The strawberries in container
(ii) Avoiding alcoholic drinks A remain fresh whereas the SUMMATIVE PRACTICE 3
(iii) Getting sufficient sleep strawberries in container B
(iv) Wearing protective gear become rotten and smelly. Objective Questions
(v) Carrying out our daily (c) A very low temperature
activities with the correct will inhibit the growth of 1. D 2. B 3. D 4. B 5. B
posture microorganisms. 6. B 7. B
(b) We must take care of (d) Microorganisms grow in a
our nervous system for suitable temperature. Subjective Questions
a good health and body 4. (a) Cause tooth decay 1. (a) Pool, lake, river (any of these
coordination.
(b) Cause contagious disease 2 answers)

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00 Answer Mahir Sci Y6.indd 2 26/09/2022 4:03 PM