Biology Quiz for 10th Class

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Questions and Answers

Which bird is most suited for pollinating a flower that produces nectar?

A parrot

A sparrow

A duck

A hummingbird (correct)

What characteristic can differentiate birds from mammals?

Type of body covering (correct)

Body temperature

Number of legs

Presence of wings

Which two parts of a plant cell are also present in animal cells?

P and S

Q and R

P and Q (correct)

R and S

What adaptation would likely be found in plants growing in hot and dry conditions?

Swollen stems Signup and view all the answers

In which direction is food and water transported in a growing seed?

Food upwards, Water downwards Signup and view all the answers

What is the correct match of organs involved in digestion and absorption of food?

Small intestine - Small intestine Signup and view all the answers

What activity could contribute to an increase in Earth's air temperature?

Burning fossil fuels Signup and view all the answers

Which statement best describes a difference between birds and mammals?

Birds lay eggs, while most mammals give birth to live young. Signup and view all the answers

Which option correctly describes the relationship between the potential energy of the ball moving from P to Q and its kinetic energy moving from Q to P?

Decreases, Increases Signup and view all the answers

Which arrangement of three bar magnets AB, CD, and EF is not possible based on magnetic principles?

Magnets AB and CD attract while EF repels both Signup and view all the answers

Which action would cool the boiling water in the shortest time?

Wrap the beaker with wet cloth Signup and view all the answers

What is the correct number of bulbs that would remain lit if bulb B and D are blown?

2 Signup and view all the answers

In Kelly's heating experiment, when does the water begin to boil?

10 minutes after all ice melts Signup and view all the answers

What variable is Mei Ling investigating by altering the distance x between the lamp and cardboard?

Distance from the heat source Signup and view all the answers

What is the expected outcome of wrapping the beaker with a wet cloth in terms of time to cool?

Fastest cooling time due to evaporation Signup and view all the answers

In an experiment investigating condensation of water vapor, which factor would be least relevant?

Color of the container Signup and view all the answers

Which combination correctly identifies the least and most suitable ways to keep a grasshopper as a pet?

A is least suitable; C is most suitable Signup and view all the answers

What should Aini use as a control for her experiment on the germination of seeds?

A setup with damp cotton wool only Signup and view all the answers

Which pair of processes X and Y correctly explains the lifecycle of a flowering plant?

X is germination; Y is pollination Signup and view all the answers

Which part of the flower did Swee Meng remove that resulted in no seeds being produced?

Part B Signup and view all the answers

At which point on the graph was organism W first introduced based on the food relationships shown?

Point 2 Signup and view all the answers

What is the likely change in the amount of carbon dioxide after a few hours in Kumar's experiment?

Decrease in carbon dioxide due to photosynthesis Signup and view all the answers

Which of the following best describes the impact of increasing the number of vehicles on air quality?

Decreases air quality due to increased emissions Signup and view all the answers

What may result from an increase in the use of solar energy?

Lower greenhouse gas emissions Signup and view all the answers

Which option shows an increase in carbon dioxide?

Set-up B Signup and view all the answers

What can be inferred about leaf P from the experiment's setup?

Leaf P has stomata on both upper and lower surfaces. Signup and view all the answers

Based on James' results, what conclusion can be drawn about stomata distribution in the leaves?

Lower surfaces of the leaves have a greater number of stomata. Signup and view all the answers

After Selvi left the balloon in the refrigerator and it became smaller, where did the heat flow occur?

From the air inside the balloon to the material of the balloon. Signup and view all the answers

Which of the following statements about decomposers is accurate?

Decomposers play a crucial role in nutrient recycling. Signup and view all the answers

What is the primary role of stomata on the leaves?

To regulate water loss and gas exchange. Signup and view all the answers

What effect does coating leaves with oil have on the loss of water?

Reduces water loss by blocking stomata on the coated surfaces. Signup and view all the answers

When a ball is thrown straight up, which force acts against its upward motion?

Gravity pulling it down. Signup and view all the answers

What is true about the current path in Shufen's second experiment when both bulbs are lit?

Each bulb can be switched on or off individually. Signup and view all the answers

If Shufen's first experiment only had bulb X and the second added bulb Y, what happens to the brightness of bulb X?

It remains the same. Signup and view all the answers

Which arrangement of weights hung from strings X, Y, and Z would likely result in no breaking of any string?

All weights below the breaking point of string X. Signup and view all the answers

According to Rui Yang's connections, what can be concluded if the bulb did not light up with pins C and D?

There is no current flow between C and D. Signup and view all the answers

What can be inferred about the connection of pins A and B when the bulb lights up?

Both A and B are part of a parallel circuit. Signup and view all the answers

Which of the following statements is untrue regarding Rui Yang's experiment?

All connections guarantee the bulb lights up. Signup and view all the answers

What does the arrangement of weights in Mariam's test indicate about string durability?

String durability varies with weight arrangement. Signup and view all the answers

In the experiment involving completely connected pins and powered bulb, what can be deduced if the bulb lights up?

Current must be flowing through the connected pins. Signup and view all the answers

Where would water droplets likely form after a short while when hot water at 90°C is poured into steel cups?

On the outer surface of the steel cup Signup and view all the answers

Which statement correctly describes the frictional forces acting on the block W in the various scenarios presented in the figures?

All A, B, and C are correct Signup and view all the answers

What can be said about the gravitational force acting on the roller coaster car at points A and B?

It is the same at both A and B Signup and view all the answers

Which of the following statements regarding Justin's walk is not correct?

His shadow became shorter as he walked from Q to R Signup and view all the answers

For Gopal's electrical circuits set up with identical batteries and bulbs, which statement is accurate about the circuits?

All circuits will have the same brightness in the bulbs Signup and view all the answers

What is true about the kinetic energy of the roller coaster car at point C?

It is zero at point C Signup and view all the answers

What happens to the length of Justin's shadow as he walks from Q to R?

It lengthens steadily as he moves away from the lamp Signup and view all the answers

Which statement about the frictional force on the wooden block W is true?

Friction also influences the block's descent on an inclined plane Signup and view all the answers

Study Notes

Instructions to Candidates

Write index number in boxes at top right.
Do not open booklet until told.
Follow all instructions carefully.
Answer all questions.
Shade answers on Optical Answer Sheet (OAS).
Booklet consists of 24 pages.
Total time for Booklets A & B: 1 hour 45 minutes.

Part I

Questions 1-30 have four options.
Choose one correct answer.
Shade oval (1, 2, 3, or 4) on OAS.
Total marks: 60

Question 1

Some birds feed on nectar.
Which bird is best for pollination? (Multiple choices with images of birds)

Question 2

Which characteristic differentiates birds and mammals? (Multiple choice)

Question 3

Diagram shows a plant cell.
Which two parts are also found in animal cells? (Multiple choice with labels P, Q, R, S)

Question 4

Which features are common in plants in hot and dry places? (Multiple choice)

Question 5

Diagram shows a seed growing.
What is the direction of food and water transport at X? (Table with multiple choice)

Question 6

Match organ involved in food digestion with organ that absorbs food. (Table)

Question 7

Why did a scientist observe an increase in Earth's temperature in past 10 years? (Multiple choice with activities A, B, C, and D).

Question 8

Guohui wants to keep a grasshopper.
Which is the best method for keeping grasshopper as a pet? (Table)

Question 9

Aini is conducting an experiment to test for oxygen needs for seed germination.
Which setup should Aini use as a control? (Multiple choice with diagrams showing different setups)

Question 10

Diagram shows a plant life cycle (adult plant, flower, seed, young plant).
What are processes X and Y? (Multiple choice)

Question 11

Swee Meng conducted an experiment on a flower.
Which part of the flower was removed? (Multiple choice)

Question 12

Food relationship between animals T, U and V.
Graph shows number of organism V over time (after introduction of W).
At which point on graph was organism W introduced? (Multiple choice).

Question 13

Kumar set up experiments with setups A, B, and C.
What is the likely change in carbon dioxide after several hours? (Table)

Question 14

Study the chart of living things.
What is the correct statement about P and Q? (Multiple choice with questions)

Question 15

James is experimenting with how leaves lose water through stomata.
Different leaves with coated surfaces are observed.
What can James conclude about stomata? (Multiple choice)

Question 16

Selvi blows air into a balloon and puts it in the fridge.
Which direction did heat flow? (Multiple choice)

Question 17

A ball is thrown up in the air.
What happens to the potential and kinetic energy? (Table)

Question 18

Three bar magnets (A, B, C, D, E, F ) arranged.
Which arrangement is NOT possible? (Multiple choice with diagrams)

Question 19

A glass beaker with boiling water is left on a table.
Which actions would cool the water fastest? (Multiple choice A, B, C)

Question 20

Study the circuit with batteries and bulbs.
How many bulbs would remain lit if one or more bulbs are blown? (Table)

Question 21

Kelly heats ice in a beaker
What is the correct graph for the temperature changes? (Multiple choice diagrams)

Question 22

Mei Ling conducts an experiment with a heat lamp, cardboard, thermometer, and glass box.
What is she investigating? (Multiple choice)

Question 23

Experiment was setup to investigate water condensation.
Where will water droplets form? (Multiple choice)

Question 24

Siva conducted experiment about wooden block and a plank.
What statements about friction are correct?(Multiple choice A,B,C)

Question 25

Diagram of roller coaster ride.
Which statement about the roller coaster is correct? (Multiple choice)

Question 26

Justin walks in a straight line from P to R.
Which statement about Justin's walk is incorrect? (Multiple choice)

Question 27

Gopal sets up four electrical circuits (P, Q, R, S) with bulbs
Identify correct circuit(s) with brightly lit bulbs and dimly lit bulbs (Table).

Question 28

Shufen conducts an experiment with a circuit and two bulbs.
Which statements are correct? (Multiple choice A, B, C).

Question 29

Mariam tests different strings (X, Y, Z) by hanging weights.
Which weight arrangement is possible (Multiple choice)

Question 30

Rui Yang connects pins A, B, C, and D on a wooden board to a battery and bulb.
Which connection lights up the bulb? (Multiple choice)

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Description

Test your knowledge in biology with this engaging quiz designed for 10th-class students. Covering topics like animal and plant characteristics, cell structure, and ecology, this quiz consists of 30 multiple-choice questions. Shade your answers on the Optical Answer Sheet and see how well you understand the fundamentals of biological science.