Biology

Question 1

What is the primary difference between prokaryotic and eukaryotic cells?

Answer 1

Prokaryotic cells do not have a nucleus, while eukaryotic cells do.

Question 2

Which type of cell contains membrane-bound organelles?

Answer 2

Eukaryotic cells.

Question 3

True or False: Plant cells have chloroplasts, while animal cells do not.

Answer 3

True.

Question 4

Fill in the blank: The rigid outer layer of a plant cell is called the _____ .

Answer 4

cell wall.

Question 5

Which of the following is NOT found in animal cells? (a) Cell wall, (b) Mitochondria, (c) Nucleus

Answer 5

a) Cell wall.

Question 6

What structure is responsible for photosynthesis in plant cells?

Answer 6

Chloroplasts.

Question 7

Name one organelle that is common to both plant and animal cells.

Answer 7

Mitochondria.

Question 8

True or False: Prokaryotic cells can be unicellular or multicellular.

Answer 8

False.

Question 9

What type of cell division do eukaryotic cells undergo?

Answer 9

Mitosis or meiosis.

Question 10

Fill in the blank: Prokaryotic cells typically have a _____ shape.

Answer 10

circular.

Question 11

Which type of cell is generally larger, prokaryotic or eukaryotic?

Answer 11

Eukaryotic.

Question 12

What is the function of the cell membrane in both plant and animal cells?

Answer 12

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

Question 13

True or False: Animal cells have a large central vacuole like plant cells.

Answer 13

False.

Question 14

What type of cells are yeast and algae classified as?

Answer 14

Eukaryotic cells.

Question 15

Fill in the blank: _____ are organelles that generate energy in both plant and animal cells.

Answer 15

Mitochondria.

Question 16

What is the process of cell division called?

Answer 16

Mitosis

Question 17

True or False: Stem cells are specialized cells.

Answer 17

False

Question 18

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

Answer 18

Interphase

Question 19

What type of stem cells can differentiate into any cell type?

Answer 19

Pluripotent stem cells

Question 20

Which process leads to the formation of gametes?

Answer 20

Meiosis

Question 21

True or False: Embryonic stem cells are derived from adult tissues.

Answer 21

False

Question 22

What is the primary ethical concern regarding stem cell research?

Answer 22

The use of human embryos

Question 23

Multiple choice: Which of the following is NOT a type of stem cell? A) Embryonic B) Adult C) Differentiated D) Induced pluripotent

Answer 23

C) Differentiated

Question 24

What is the term for the process by which stem cells develop into specialized cells?

Answer 24

Differentiation

Question 25

Fill in the blank: The stage of mitosis where chromosomes align at the cell's equator is called _______.

Answer 25

Metaphase

Question 26

True or False: Adult stem cells have a higher differentiation potential than embryonic stem cells.

Answer 26

False

Question 27

What is a common source of adult stem cells?

Answer 27

Bone marrow

Question 28

Multiple choice: Which of the following is a potential application of stem cell therapy? A) Treating diabetes B) Regenerating hair C) Both A and B D) None of the above

Answer 28

C) Both A and B

Question 29

What is the function of checkpoints in the cell cycle?

Answer 29

To ensure proper cell division and prevent errors

Question 30

Fill in the blank: Stem cells that are limited to differentiating into cell types of their tissue of origin are called _______.

Answer 30

Multipotent stem cells

Question 31

True or False: All stem cells are capable of self-renewal.

Answer 31

True

Question 32

What scientific technique allows the reprogramming of differentiated cells into induced pluripotent stem cells?

Answer 32

Cellular reprogramming

Question 33

Multiple choice: Which ethical principle is often discussed in relation to stem cell research? A) Autonomy B) Beneficence C) Justice D) All of the above

Answer 33

D) All of the above

Question 34

What are the two main types of cell division?

Answer 34

Mitosis and Meiosis

Question 35

Fill in the blank: The phase of meiosis where homologous chromosomes are separated is called _______.

Answer 35

Anaphase I

Question 36

True or False: Stem cells can only be harvested from embryos.

Answer 36

False

Question 37

What is the significance of stem cell niches?

Answer 37

They provide a microenvironment that regulates stem cell behavior.

Question 38

Multiple choice: Which of the following best describes totipotent stem cells? A) Can become any cell type B) Can become only certain cell types C) Cannot differentiate D) None of the above

Answer 38

A) Can become any cell type

Question 39

What is the main goal of regenerative medicine?

Answer 39

To repair or replace damaged tissues and organs.