Biology 1 test review

Question 1

What is a independent variable?

Answer 1

Variables that is changed (cause)

Question 2

What is a dependent variable?

Answer 2

Variables that is affected by the change (effect)

Question 3

Which level consists of a group of cells working together?

Answer 3

The tissue

Question 4

Which level consists of groups of organisms?

Answer 4

The community level

Question 5

What is a positive feedback loop?

Answer 5

When the product of a reaction leads to an increase in that reaction

Question 6

What is a negative feedback loop?

Answer 6

Feedback that tends to stabilize a process by reducing its rate or output when its effects are too great

Question 7

Which level consists of a specific type of animal, plant, fungus, protist or bacteria?

Answer 7

organism

Question 8

Which level consists of groups of organisms as well as the physical environment they live in?

Answer 8

Ecosystem

Question 9

What concepts refers to maintaining a stable internal environment

Answer 9

Homeostasis (constant blood sugar)

Question 10

When your blood sugar levels are high, you produce more insulin to move glucose into your cells, When it is low you produce more glucagon to break down stored glucose. Is this positive or negative feedback?

Answer 10

Negative

Question 11

When you cut yourself, your body responds by sending platelets to help clotting. These platelets turn into signals to send more platelets. Is this positive or negative feedback?

Answer 11

Positive feedback

Question 12

What are the 4 macro molecules

Answer 12

Lipids, carbs, proteins, nucleic acids

Question 13

What are present in all 4 organic macro molecules

Answer 13

Carbon

Question 14

Why is carbon so important?

Answer 14

because it is abundant and light

Question 15

What is the primary function of carbohydrates in both plants and animals

Answer 15

energy

Question 16

what is the monomer unit of carbohydrate

Answer 16

monosaccharide

Question 17

What elements make up carbohydrates

Answer 17

C,O,H

Question 18

What molecule can be immediately used for energy by the cell

Answer 18

glucose

Question 19

animals store excess carbohydrates (initially) in the form of

Answer 19

glycogen

Question 20

what elements are found in lipids

Answer 20

C,H,O

Question 21

plants store excess carbohydrates in the form of

Answer 21

starch and cellulose

Question 22

What are the four functions of protein?

Answer 22

antibodies(protect), hormones(communicate), enzymes(speed & reaction), hair and nails, (structure)

Question 23

what elements are found in proteins

Answer 23

C,H,O,N, (S)

Question 24

What are the building blocks (smaller molecules) that make up proteins?

Answer 24

amino acids

Question 25

what is the function of nucleic acid

Answer 25

store and transmit, genetic information

Question 25

what are the monomer units of nucleic acid

Answer 25

nucleotide

Question 26

most of these biomolecules end in the suffix -ose

Answer 26

carbohydrate

Question 27

what biomolecule includes fats, oils, and waxes

Answer 27

lipids

Question 28

makes up most of the cell membrane

Answer 28

lipids

Question 29

used to store energy that is released slowly

Answer 29

lipids