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LIFE SCIENCES P1 QP GR11 NOV2023_English D
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LIFE SCIENCES P1 QP GR11 NOV2023_English D
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NATIONALSENIOR CERTIFICATE
GRADE 11
NOVEMBER 2023
LIFE SCIENCES P1
MARKS: 150
TIME: 2½ hours
This question paper consists of 14 pages.
,2 LIFE SCIENCES P1 (EC/NOVEMBER 2023)
INSTRUCTIONS AND INFORMATION
Read the following instructions carefully before answering the questions.
1. Answer ALL the questions.
2. Write ALL the answers in your ANSWER BOOK.
3. Start the answer to EACH question at the top of a NEW page
4. Number the answers correctly according to the numbering system
used in this question paper.
5. Present your answers according to the instructions of each question.
6. Do ALL drawings in pencil and label them in blue or black ink.
7. Draw diagrams, tables or flow charts only when asked to do so.
8. The diagrams in this question paper are NOT necessarily drawn to scale.
9. Do NOT use graph paper.
10. You may use a non-programmable calculator, protractor and a
compass where necessary.
11. Write neatly and legibly.
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, (EC/NOVEMBER 2023) LIFE SCIENCES P1 3
SECTION A
QUESTION 1
1.1 Various options are given as possible answers to the following
questions. Choose the answer and write only the letter (A–D) next to
the question numbers (1.1.1 to 1.1.10) in the ANSWER BOOK, for
example 1.1.11 D.
1.1.1 During anaerobic respiration in animals, the pyruvic acid is converted
to …
A ethyl alcohol.
B lactic acid.
C hydrochloric
acid. D acetic
acid.
1.1.2 Which ONE of the following represents a metabolic waste
excreted by the lungs?
A Urea
B Ammonia
C Carbon
dioxide D
Uric acid
1.1.3 Which ONE of the following pathways correctly represents
air movement in the lungs?
A Alveolus bronchiole trachea bronchus B
Bronchiole trachea bronchus alveolus C
Trachea bronchus bronchiole alveolus D
Trachea bronchiole bronchus alveolus
1.1.4 The blood vessel that transports absorbed nutrients from the small
intestine to the liver is the …
A hepatic vein.
B hepatic portal
vein. C inferior
vena cava. D renal
vein.
1.1.5 The gas released during photosynthesis is …
A carbon
dioxide. B
oxygen.
C hydrogen.
D ozone.
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