bio

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

What is the process by which plants make their own food?

Answer 3

Photosynthesis.

Question 4

Fill in the blank: The green pigment in plants that captures light energy is called _____ .

Answer 4

chlorophyll.

Question 5

What is the function of the mitochondria in a cell?

Answer 5

To produce energy.

Question 6

Multiple Choice: Which part of the plant is responsible for absorbing water and nutrients from the soil? A) Stem B) Root C) Leaf D) Flower

Answer 6

B) Root.

Question 7

What is the role of the nucleus in a cell?

Answer 7

To control cell activities and store genetic information.

Question 8

True or False: Animals perform photosynthesis.

Answer 8

False.

Question 9

What are the two main types of cells?

Answer 9

Prokaryotic and eukaryotic.

Question 10

Fill in the blank: The process by which cells divide to produce new cells is called _____ .

Answer 10

mitosis.

Question 11

Multiple Choice: What is the main function of red blood cells? A) Fight infections B) Carry oxygen C) Clot blood D) Digest food

Answer 11

B) Carry oxygen.

Question 12

What is the name of the outer layer of a plant cell?

Answer 12

Cell wall.

Question 13

True or False: DNA is found in the nucleus of a cell.

Answer 13

True.

Question 14

What is the role of chloroplasts in plant cells?

Answer 14

To conduct photosynthesis.

Question 15

Fill in the blank: The _____ system is responsible for transporting nutrients and waste in the body.

Answer 15

circulatory.

Question 16

Multiple Choice: Which organ is primarily responsible for filtering blood? A) Heart B) Kidney C) Liver D) Stomach

Answer 16

B) Kidney.

Question 17

What is osmosis?

Answer 17

The movement of water across a semi-permeable membrane.

Question 18

True or False: All cells have a nucleus.

Answer 18

False.

Question 19

What are enzymes?

Answer 19

Proteins that speed up chemical reactions in the body.

Question 20

Fill in the blank: The _____ is the basic building block of proteins.

Answer 20

amino acid.

Question 21

Multiple Choice: Which of the following is NOT a macromolecule? A) Carbohydrate B) Protein C) Lipid D) Water

Answer 21

D) Water.

Question 22

What is homeostasis?

Answer 22

The maintenance of a stable internal environment in an organism.

Question 23

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

Answer 23

False.

Question 24

What is the main function of the skeletal system?

Answer 24

To provide structure and support to the body.

Question 25

Fill in the blank: The _____ system is responsible for producing hormones.

Answer 25

endocrine.

Question 26

Multiple Choice: Which part of the brain controls balance? A) Cerebrum B) Cerebellum C) Brainstem D) Thalamus

Answer 26

B) Cerebellum.

Question 27

What is the primary function of the digestive system?

Answer 27

To break down food and absorb nutrients.

Question 28

True or False: Photosynthesis occurs in the roots of plants.

Answer 28

False.

Question 29

What is the function of the respiratory system?

Answer 29

To take in oxygen and expel carbon dioxide.

Question 30

Fill in the blank: The _____ is the largest organ in the human body.

Answer 30

skin.

Question 31

Multiple Choice: Which type of blood vessel carries blood away from the heart? A) Veins B) Capillaries C) Arteries D) All of the above

Answer 31

C) Arteries.

Question 32

What is the primary role of the immune system?

Answer 32

To protect the body from pathogens.

Question 33

True or False: Viruses are considered living organisms.

Answer 33

False.

Question 34

What is a food chain?

Answer 34

A sequence that shows the flow of energy from one organism to another.

Question 35

Fill in the blank: The process of converting nitrogen gas into a usable form for plants is called _____ .

Answer 35

nitrogen fixation.

Question 36

Multiple Choice: Which of the following is a decomposer? A) Grass B) Mushroom C) Eagle D) Rabbit

Answer 36

B) Mushroom.

Question 37

What is biodiversity?

Answer 37

The variety of life in a particular habitat or ecosystem.

Question 38

True or False: Ecosystems consist only of living organisms.

Answer 38

False.

Question 39

What is a habitat?

Answer 39

The natural environment in which an organism lives.

Question 40

Fill in the blank: The _____ is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

Answer 40

theory of natural selection.

Question 41

Multiple Choice: Which of the following is a characteristic of living things? A) Growth B) Reproduction C) Response to stimuli D) All of the above

Answer 41

D) All of the above.

Question 42

What is the main purpose of the scientific method?

Answer 42

To investigate phenomena and acquire new knowledge.

Question 43

True or False: A hypothesis must be testable.

Answer 43

True.

Question 44

What is a cell membrane?

Answer 44

A semi-permeable barrier that surrounds the cell.

Question 45

Fill in the blank: The _____ is responsible for transporting oxygen in the blood.

Answer 45

hemoglobin.

Question 46

Multiple Choice: Which organelle is known as the 'powerhouse of the cell'? A) Nucleus B) Ribosome C) Mitochondria D) Golgi apparatus

Answer 46

C) Mitochondria.

Question 47

What is the role of ribosomes in a cell?

Answer 47

To synthesize proteins.

Question 48

True or False: Plants and animals have the same types of cells.

Answer 48

False.

Question 49

What is a virus?

Answer 49

A small infectious agent that can only replicate inside a living host cell.

Question 50

Fill in the blank: The _____ is the part of the brain responsible for higher thinking and reasoning.

Answer 50

cerebrum.

Question 51

Multiple Choice: What type of reproduction involves two parents? A) Asexual B) Sexual C) Budding D) Fragmentation

Answer 51

B) Sexual.

Question 52

What is the primary function of the urinary system?

Answer 52

To remove waste products from the body.