Biology

Question 1

What is the basic unit of life?

Answer 1

Cell

Question 2

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

Answer 2

True

Question 3

What is the function of the cell membrane?

Answer 3

To control the movement of substances in and out of the cell.

Question 4

Fill in the blank: The genetic material of a cell is found in the _____.

Answer 4

Nucleus

Question 5

What are the two main types of cells?

Answer 5

Prokaryotic and Eukaryotic

Question 6

Which organelle is known as the powerhouse of the cell?

Answer 6

Mitochondria

Question 7

What process do plants use to make their own food?

Answer 7

Photosynthesis

Question 8

True or False: Chloroplasts are found in animal cells.

Answer 8

False

Question 9

What is the equation for photosynthesis?

Answer 9

6CO2 + 6H2O + light energy → C6H12O6 + 6O2

Question 10

What are the three main components of the cell theory?

Answer 10

1. All living things are made of cells. 2. The cell is the basic unit of life. 3. All cells come from pre-existing cells.

Question 11

What is the primary function of ribosomes?

Answer 11

Protein synthesis

Question 12

Multiple choice: Which of the following is NOT a function of the cell membrane? a) Protection b) Energy production c) Communication d) Selective permeability

Answer 12

b) Energy production

Question 13

What structure do plant cells have that animal cells do not?

Answer 13

Cell wall

Question 14

Fill in the blank: The liquid component of the cell is known as _____.

Answer 14

Cytoplasm

Question 15

What is the role of the endoplasmic reticulum?

Answer 15

Transport and processing of proteins and lipids.

Question 16

True or False: DNA is found in the ribosomes.

Answer 16

False

Question 17

What is the process by which cells divide to form new cells?

Answer 17

Cell division (mitosis for somatic cells and meiosis for gametes)

Question 18

What are enzymes?

Answer 18

Biological catalysts that speed up chemical reactions in the body.

Question 19

Multiple choice: Which factor does NOT affect enzyme activity? a) Temperature b) pH c) Color of the enzyme d) Concentration of substrate

Answer 19

c) Color of the enzyme

Question 20

What is the primary function of the Golgi apparatus?

Answer 20

Modification, sorting, and packaging of proteins.

Question 21

What is the role of lysosomes?

Answer 21

Digestion and waste removal in the cell.

Question 22

Fill in the blank: The process of converting glucose into energy in the presence of oxygen is called _____.

Answer 22

Aerobic respiration

Question 23

What is the formula for aerobic respiration?

Answer 23

C6H12O6 + 6O2 → 6CO2 + 6H2O + energy (ATP)

Question 24

True or False: Fermentation occurs in the absence of oxygen.

Answer 24

True

Question 25

What are the two types of fermentation?

Answer 25

Lactic acid fermentation and alcoholic fermentation.

Question 26

What is the role of the plasma membrane in cells?

Answer 26

To maintain homeostasis by regulating what enters and exits the cell.

Question 27

Multiple choice: Which of the following is NOT a type of RNA? a) mRNA b) tRNA c) rRNA d) dRNA

Answer 27

d) dRNA

Question 28

What is the purpose of mitosis?

Answer 28

To produce two genetically identical daughter cells.

Question 29

Fill in the blank: The phase of the cell cycle where the cell grows and prepares for division is called _____.

Answer 29

Interphase

Question 30

What is the difference between a diploid and haploid cell?

Answer 30

Diploid cells have two sets of chromosomes, while haploid cells have one set.

Question 31

True or False: Meiosis results in four genetically different daughter cells.

Answer 31

True

Question 32

What is the function of the spindle fibers during cell division?

Answer 32

To separate chromosomes during mitosis and meiosis.

Question 33

What is an allele?

Answer 33

Different forms of a gene.

Question 34

Multiple choice: Which of the following represents a homozygous genotype? a) Aa b) AA c) AB d) aA

Answer 34

b) AA

Question 35

Fill in the blank: The physical appearance of an organism is known as its _____.

Answer 35

Phenotype

Question 36

What is the purpose of a Punnett square?

Answer 36

To predict the genotypes and phenotypes of offspring from genetic crosses.

Question 37

True or False: Sex-linked traits are carried on the autosomes.

Answer 37

False

Question 38

What is natural selection?

Answer 38

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

Question 39

What is the role of biodiversity in ecosystems?

Answer 39

It enhances ecosystem resilience and stability.

Question 40

Multiple choice: Which of the following is a biotic factor in an ecosystem? a) Temperature b) Water c) Plants d) Soil

Answer 40

c) Plants

Question 41

Fill in the blank: The ultimate source of energy for life on Earth is _____.

Answer 41

The Sun