Science study

Question 1

What is the difference between non-living things and living things?

Answer 1

Living things: Mr Sgren
Non-living things: Anything that isn’t Mr Sgren

Question 2

Describe what cells are.

Answer 2

Cells are the smallest unit of life, and they are in all living things.

Question 3

What is the difference between unicellular and multicellular

Answer 3

Unicellular is when there is only one cell in an organism. Multicellular is an organism which has more than one cell.

Question 4

Identify levels of organization in multicellular organisms

Answer 4

Cells make up tissues, tissues make up organs, and organs make up organ systems.

Question 5

What are the main types of microscope pieces? (there are 10)

Answer 5

eye piece, revolving nose piece, objective lens, stage, diaphragm, light source, stage clips, fine adjustment knobs, coarse adjustment knobs, base

Question 6

What is a light microscope?

Answer 6

The light microscope is an instrument for visualizing fine detail of an object.

Question 7

How to handle and use a microscope.

Answer 7

Do not touch the glass part of the lenses with your fingers. Use only special lens paper to clean the lenses. Always carry a microscope with both hands.

Question 8

Describe how a specimen’s orientation appears under the microscope.

Answer 8

It is the opposite of what you see. If the bacteria is moving up it means in real life its moving down.

Question 9

How do you calculate the sizes of very small objects on a microscope?

Answer 9

10(ocular lens) times objective lens (4,10,40)
=times ______mag

Question 10

Identify the main parts of a plant cell.

Answer 10

Cell membrane, vacuole, chloroplast (3 only on plant cell) nucleus, cytoplasm, mitochondria, ribosome, and cell wall.

Question 11

What is a function of a cytoplasm?

Answer 11

Cytoplasm allows transportation, maintains the cell’s shape and structure, and it provides protection. (in both)

Question 12

What is a function of a nucleus

Answer 12

The nucleus is a small egg-shaped structure inside the cell which acts like the brain of the cell. It tells every part of the cell what to do. (in both)

Question 12

What is a function of a cell membrane

Answer 12

The cell membrane regulates the transport of materials entering and exiting the cell. (only in plant cell)

Question 13

What is a function of a cell wall

Answer 13

It provides the cell with structural support, shape, protection, and functions as a selective barrier. (in both)

Question 14

What is a function of a chloroplast

Answer 14

The chloroplast uses light and carbon dioxide to make their food and energy. (only in plant cell)

Question 15

What is a function of a mitochondrion

Answer 15

produces the energy necessary for the cell’s survival and functioning. (in both)

Question 16

What is a function of a vacuole

Answer 16

They can store food or other nutrients required by a cell to survive. They also store waste products and prevent the entire cell from contamination. (only in plant cell)

Question 17

What are specialised cells?

Answer 17

Specialised cells are cells designed to carry out a particular role in the body, such as red blood cells which are designed to carry oxygen.

Question 18

Explain how the structure of a specialised cell help

Answer 18

If a cell is specialized, it has unique structures that allow it to carry out its function in the body.

Question 19

Identify where the physical and chemical digestion occurs

Answer 19

Mouth (both), oesophagus (physical), stomach (both), small intestines (both), large intestines (physical), rectum (physical)

Question 19

Identify the organs of the digestive system. (there’s 7)

Answer 19

Mouth, oesophagus, stomach, small intestine, large intestine, rectum

Question 20

Contrast physical and chemical digestion occur.

Answer 20

Chemical: uses chemicals and enzymes
Physical: use of physical force

Question 21

What is the function of the mouth?

Answer 21

Your salivary glands make saliva, a digestive juice, which moistens food so it moves more easily through your esophagus into your stomach

Question 22

What is the function of the oesopagus?

Answer 22

The primary function of the esophagus is to transport food entering the mouth through the throat and into the stomach.

Question 23

What is the function of the stomach?

Answer 23

The primary functions of the stomach include the temporary storage and partial chemical and mechanical digestion of food.

Question 24

What is the function of the small intestine

Answer 24

The small intestine’s principal function is to break down food, absorb nutrients the body needs, and excrete unnecessary components.

Question 25

What is the function of the large intestine

Answer 25

The large intestine has 3 primary functions: absorbing water and electrolytes, producing and absorbing vitamins, and forming and propelling feces toward the rectum for elimination.

Question 26

What is the function of the rectum

Answer 26

The rectum is a holding area for the stool.

Question 27

What is the Matilda Effect?

Answer 27

The Matilda Effect refers to the downplaying or overlooking of the scientific contributions and achievements of women, while giving undue credit and recognition to their male colleagues or counterparts.

Question 28

Identify a female scientist and explain how the Matilda effect relates to their work.

Answer 28

Rosalind Franklin used x-rays to take a picture of DNA that would change biology, however her male colleague.