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Grade 10 LS Nov P1 2023 with marking guideline

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Grade 10 Life Sciences November Paper 1 examination with marking guideline. Paper includes questions with the different scientific levels and degrees of difficulty. Sections included in the paper: Chemistry of Life Cells: Basic unit of Life Cell division: Mitosis Plant and animal tissues Plant organs Support and Transport systems: Plants Support systems: Animals (Skeletal system)

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SECTION A

QUESTION 1

1.1 Answer the following multiple-choice questions by choosing the most
appropriate answer. Write down only the letter of your choice. Example
1.1.11 A

1.1.1 What is the main function of carbohydrates in living organisms?


A Energy storage
B Structural support
C Enzyme production
D Genetic information


1.1.2 What is the primary function of meristematic tissue in plants?


A Storage of water and nutrients
B Photosynthesis
C Growth and cell division
D Transport of nutrients


1.1.3 Which of the following is a connective tissue that attaches muscle to
bone?


A Ligament
B Cartilage
C Synovium
D Tendon




1

© 2023 Tutorme LS. All rights reserved.

, 1.1.4 What is the function of the cell membrane in a cell?


A Synthesizing proteins
B Controlling the passage of substances in and out of the cell
C Protecting the cell's DNA
D Storing genetic information


1.1.5 The structure of xylem vessels which contribute to their function in water
transport is…

A thick walls to resist collapsing under pressure.
B narrow lumens to prevent water flow.
C no lignin for flexibility.
D perforations to facilitate water movement.


1.1.6 How does cytokinesis differ between animal cells and plant cells?

A Animal cells undergo cleavage furrow formation, while plant cells form
a cell plate.
B Animal cells form a cell plate, while plant cells undergo cleavage
furrow formation.
C Both animal and plant cells use centrioles during cytokinesis.
D Cytokinesis is the same in both animal and plant cells.


1.1.7 Which type of plant tissue is primarily responsible for providing mechanical
support to the plant and is characterized by thick cell walls with lignin?

A Parenchyma tissue
B Collenchyma tissue
C Sclerenchyma tissue
D Epidermal tissue




2

© 2023 Tutorme LS. All rights reserved.

, 1.1.8 Which of the following statements best explains the role of enzymes in
biological reactions?

A Enzymes provide the energy needed for reactions to occur.
B Enzymes speed up chemical reactions by lowering the activation
energy.
C Enzymes determine the overall direction of a reaction.
D Enzymes prevent reactions from occurring in living organisms.


1.1.9 Animals exhibit various adaptations for support and movement. Which of
the following statements best explains the significance of endoskeletons in
vertebrate animals?

A Endoskeletons provide a lightweight structure for efficient movement.
B Endoskeletons allow for rapid growth and regeneration of body parts.
C Endoskeletons serve as a protective shield against predators.
D Endoskeletons are a form of external support for anchoring muscles.


1.1.10 A biology student is using a compound microscope to observe a
microscopic organism. The eyepiece of the microscope has a
magnification of 10x, and the objective lens being used has a
magnification of 40x. The student draws a detailed diagram of a cell they
observed. Later, they measure the cell's size in their drawing and find it to
be 5 millimeters (mm) in length. What is the actual size of the cell in
micrometers (μm)?

A 0,0125 μm
B 0,125 μm
C 1,25 μm
D 12,5 μm
(10 x 2) (20)




3

© 2023 Tutorme LS. All rights reserved.

Información del documento

Schooljaar
200
Subido en
29 de abril de 2026
Número de páginas
20
Escrito en
2022/2023
Tipo
Examen
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$10.43

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