aqa biology paper 1

Question 1

What is the basic unit of life?

Answer 1

Cell

Question 2

True or False: Prokaryotic cells have a nucleus.

Answer 2

False

Question 3

Fill in the blank: The process by which cells obtain energy from glucose is called _____.

Answer 3

Cellular respiration

Question 4

What structure controls the movement of substances in and out of the cell?

Answer 4

Cell membrane

Question 5

Which organelle is responsible for protein synthesis?

Answer 5

Ribosome

Question 6

What is the function of mitochondria?

Answer 6

Energy production

Question 7

What is the genetic material found in cells?

Answer 7

DNA

Question 8

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

Answer 8

True

Question 9

What is the purpose of the chloroplast?

Answer 9

Photosynthesis

Question 10

Fill in the blank: The _____ is the powerhouse of the cell.

Answer 10

Mitochondria

Question 11

What type of cell division results in two identical daughter cells?

Answer 11

Mitosis

Question 12

Which biomolecule serves as the main source of energy for living organisms?

Answer 12

Carbohydrates

Question 13

What is the primary function of enzymes?

Answer 13

Catalyze biochemical reactions

Question 14

What type of bond holds together the two strands of a DNA molecule?

Answer 14

Hydrogen bonds

Question 15

What is the role of ribosomes in the cell?

Answer 15

Protein synthesis

Question 16

True or False: The cell theory states that all cells arise from pre-existing cells.

Answer 16

True

Question 17

Fill in the blank: _____ are the building blocks of proteins.

Answer 17

Amino acids

Question 18

What is the function of the Golgi apparatus?

Answer 18

Modification and packaging of proteins

Question 19

What structure is responsible for transporting materials within the cell?

Answer 19

Endoplasmic reticulum

Question 20

What is diffusion?

Answer 20

Movement of particles from high to low concentration

Question 21

True or False: Osmosis is the movement of water through a selectively permeable membrane.

Answer 21

True

Question 22

What is the purpose of the cell wall in plant cells?

Answer 22

Provide structure and support

Question 23

Fill in the blank: _____ are specialized structures within a cell that perform distinct functions.

Answer 23

Organelles

Question 24

What is the function of lysosomes?

Answer 24

Digestion and waste removal

Question 25

What process do plants use to convert sunlight into chemical energy?

Answer 25

Photosynthesis

Question 26

Which phase of the cell cycle is characterized by DNA replication?

Answer 26

S phase

Question 27

What is the role of the plasma membrane?

Answer 27

Regulate entry and exit of substances

Question 28

True or False: All cells have a cell wall.

Answer 28

False

Question 29

What is the primary component of the cell membrane?

Answer 29

Phospholipids

Question 30

Fill in the blank: The _____ is responsible for controlling cell activities and contains genetic information.

Answer 30

Nucleus

Question 31

What is the main function of vascular tissue in plants?

Answer 31

Transport water and nutrients

Question 32

What is a genotype?

Answer 32

The genetic makeup of an organism

Question 33

True or False: Phenotype refers to the physical expression of a trait.

Answer 33

True

Question 34

What is natural selection?

Answer 34

The process by which organisms better adapted to their environment tend to survive and produce more offspring.