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Oxford Insight Science 8

Jenny Zhang, Diane Alford, Samantha Hopley, Craig Tilley

Chapter 2

Functioning Organisms - all with Video Answers

Educators


Chapter Questions

02:10

Problem 1

Fill in the gaps using the words in the Word Bank below:
Multicellular ______________________ comprise many different types of specialised cells. Each of these cells, whether in the tallest tree or the largest whale, needs to have a supply of energy, ______________________ , oxygen and water and its ______________________ removed. Cells and tissues are arranged into organs and ______________________ to meet these needs. All cells carry out
______________________ , which requires glucose and ______________________ and releases energy in a form the cell can use, carbon dioxide and water. Some plant cells carry out ______________________ . These cells use sunlight energy that is absorbed by a pigment called ______________________ , and then combines water and ______________________ to produce glucose and oxygen. Multicellular organisms also need to be able to produce new individuals in a process called ______________________ . Sexual reproduction results in ______________________ in the offspring partly because of the cell division called ______________________. Some organisms, especially plants, also use mitotic cell divisions and
______________________ reproduction to produce natural clones of themselves. Mitosis is also important for growth and ______________________ in multicellular organisms. Humans use science and ______________________ to diagnose, prevent and treat a range of health problems and injuries. Different groups in society may have different attitudes to the use of some technologies such as organ transplantation.
$$
\begin{array}{llll}
\text { asexual } & \text { meiosis } & \text { oxygen } & \text { respiration } \\
\text { carbon dioxide } & \text { nutrients } & \text { photosynthesis } & \text { technology } \\
\text { chlorophyll } & \text { organisms } & \text { repair } & \text { wastes } \\
\text { diversity } & \text { organsystems } & \text { reproduction } &
\end{array}
$$

Alyssa Mcalarney
Alyssa Mcalarney
Numerade Educator
02:00

Problem 2

Describe the role of the chloroplast in photosynthesis.

John Barone
John Barone
Numerade Educator
00:56

Problem 3

Recall the word equation that summarises photosynthesis.

Christiane Williams
Christiane Williams
Numerade Educator
02:36

Problem 4

Recall the word equation that summarises respiration.

Dr.  Satish  Ingale
Dr. Satish Ingale
Numerade Educator
02:12

Problem 5

Outline the role of the root system in flowering plants.

Briana De La Torre
Briana De La Torre
Numerade Educator
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Problem 6

Describe how transport of water, minerals, nutrients and sugars occurs in plants.

EM
Elise Morgan
Numerade Educator
02:12

Problem 7

Explain the importance of stomata in plant leaves.

Briana De La Torre
Briana De La Torre
Numerade Educator

Problem 8

Identify a gaseous waste and explain how it is produced and removed from the human body.

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02:11

Problem 9

Identify a soluble nitrogenous waste and explain how it is produced and removed from the human body.

Khalida Dawar
Khalida Dawar
Numerade Educator
04:09

Problem 10

Identify the type of cell division essential for growth, repair and asexual reproduction in flowering plants.

Christy M.
Christy M.
Numerade Educator
04:06

Problem 11

Recall where meiosis occurs in flowers and explain why it is important.

Asma Venkitta
Asma Venkitta
Numerade Educator
04:49

Problem 12

Recall what stem cells are and explain why they are important for growth and repair in humans.

Sana Riaz
Sana Riaz
Numerade Educator
01:28

Problem 13

Outline the role of meiosis in sexual reproduction in humans.

John Barone
John Barone
Numerade Educator
01:03

Problem 14

Outline how the stem and leaf structures contribute to the ability of the plant to compete and carry out photosynthesis.

DA
Danielle Aguilar
Numerade Educator
02:13

Problem 15

Identify the flower structures that contribute to successful pollination.

Dennis Howard
Dennis Howard
Numerade Educator
01:26

Problem 16

Describe how root hair cells support the process of osmosis.

Briana De La Torre
Briana De La Torre
Numerade Educator
00:46

Problem 17

Explain why the stomach and intestines are important in humans.

Joanna Quigley
Joanna Quigley
Numerade Educator
00:34

Problem 18

Describe how transport of materials occurs in the human body.

Joanna Quigley
Joanna Quigley
Numerade Educator
00:45

Problem 19

Outline how the muscular and skeletal systems help humans to function.

Tate Hilken
Tate Hilken
Numerade Educator
00:36

Problem 20

Describe the ways that human bodies get rid of wastes.

Khalida Dawar
Khalida Dawar
Numerade Educator
02:14

Problem 21

Outline the role of the ovary and testes in humans.

Asma Venkitta
Asma Venkitta
Numerade Educator