Producing New Cells

Question 1

What are unicellular organisms made of?

Answer 1

Only one cell.

Question 2

What defines multicellular organisms?

Answer 2

Made up of more than one cell.

Question 3

What are specialized cells?

Answer 3

Cells that have become specialized to perform particular functions.

Question 4

What are stem cells?

Answer 4

Unspecialized cells found in animals that can divide to self-renew and have the potential to become different types of cell.

Question 5

What is the hierarchy of multicellular organisms?

Answer 5

Cells → Tissues → Organs → Systems.

Question 6

What do organs contain?

Answer 6

Different types of tissue.

Question 7

What is an example of an organ?

Answer 7

The heart.

Question 8

What is the role of stem cells in the body?

Answer 8

Involved in growth and repair.

Question 9

What are embryonic stem cells?

Answer 9

Stem cells obtained from the embryo at a very early stage.

Question 10

What are tissue stem cells?

Answer 10

Stem cells found in the body throughout life.

Question 11

What structures carry genetic information in a cell?

Answer 11

Chromosomes.

Question 12

What is the chromosome complement of most human cells?

Answer 12

Diploid (2n).

Question 13

How many chromosomes do most human cells contain?

Answer 13

46 chromosomes arranged into 23 pairs.

Question 14

What are gametes?

Answer 14

Sex cells.

Question 15

What is the chromosome set of haploid cells?

Answer 15

One set of chromosomes.

Question 16

Fill in the blank: Stem cells can make _______.

Answer 16

more stem cells.

Question 17

True or False: All human cells are haploid.

Answer 17

False.

Question 18

What forms the two sets of chromosomes in diploid cells?

Answer 18

One set from the mother and one from the father.