biology year 10 gcse

Question 1

What is the basic unit of life?

Answer 1

The cell.

Question 2

True or False: All living organisms are made up of cells.

Answer 2

True.

Question 3

Fill in the blank: The process by which plants make their own food using sunlight is called __________.

Answer 3

photosynthesis.

Question 4

What are the main products of photosynthesis?

Answer 4

Glucose and oxygen.

Question 5

Which organelle is responsible for energy production in a cell?

Answer 5

Mitochondria.

Question 6

Multiple Choice: Which of the following is NOT a part of the cell theory? A) All living things are made of cells B) Cells are the basic unit of life C) Cells can arise from non-living matter D) All cells come from pre-existing cells.

Answer 6

C) Cells can arise from non-living matter.

Question 7

What is the function of ribosomes?

Answer 7

To synthesize proteins.

Question 8

True or False: DNA is found in the nucleus of eukaryotic cells.

Answer 8

True.

Question 9

What is the role of chlorophyll in photosynthesis?

Answer 9

To absorb light energy.

Question 10

Fill in the blank: The genetic material of an organism is stored in its __________.

Answer 10

DNA.

Question 11

What type of reproduction involves two parents?

Answer 11

Sexual reproduction.

Question 12

Multiple Choice: Which of the following is a prokaryotic organism? A) Plant cell B) Animal cell C) Bacterium D) Fungus.

Answer 12

C) Bacterium.

Question 13

What is homeostasis?

Answer 13

The maintenance of a stable internal environment.

Question 14

True or False: Enzymes are consumed in the reactions they catalyze.

Answer 14

False.

Question 15

What is the pH range for most enzymes to function optimally?

Answer 15

Around pH 7 (neutral).

Question 16

Fill in the blank: The __________ is the part of the cell that controls what enters and leaves the cell.

Answer 16

cell membrane.

Question 17

What is the function of the nucleus in a cell?

Answer 17

To store genetic information and control cell activities.

Question 18

Multiple Choice: Which process involves the movement of water across a semi-permeable membrane? A) Active transport B) Diffusion C) Osmosis D) Endocytosis.

Answer 18

C) Osmosis.

Question 19

What is the primary role of the large intestine?

Answer 19

To absorb water and form feces.

Question 20

True or False: The heart is part of the respiratory system.

Answer 20

False.

Question 21

Fill in the blank: The __________ system is responsible for transporting nutrients and oxygen throughout the body.

Answer 21

circulatory.

Question 22

What are the two main types of cells?

Answer 22

Prokaryotic and eukaryotic.

Question 23

Multiple Choice: What is the primary function of the respiratory system? A) To break down food B) To exchange gases C) To circulate blood D) To control body temperature.

Answer 23

B) To exchange gases.

Question 24

What are the building blocks of proteins?

Answer 24

Amino acids.

Question 25

True or False: All enzymes are proteins.

Answer 25

True.

Question 26

Fill in the blank: The __________ is the network of protein filaments and tubules that helps the cell maintain its shape.

Answer 26

cytoskeleton.

Question 27

What is the role of the mitochondria in the cell?

Answer 27

To produce ATP through cellular respiration.

Question 28

Multiple Choice: Which is NOT a type of macromolecule? A) Carbohydrates B) Proteins C) Nucleic acids D) Vitamins.

Answer 28

D) Vitamins.

Question 29

What is the primary purpose of cellular respiration?

Answer 29

To convert glucose into usable energy (ATP).

Question 30

True or False: The stomach is primarily responsible for nutrient absorption.

Answer 30

False.

Question 31

Fill in the blank: __________ are specialized cells that transmit nerve impulses.

Answer 31

Neurons.

Question 32

What is the function of the immune system?

Answer 32

To protect the body against pathogens.

Question 33

Multiple Choice: Which of the following is a function of the liver? A) Producing insulin B) Filtering blood C) Producing bile D) All of the above.

Answer 33

D) All of the above.