Midterm

Question 1

How do you know if you have a good hypothesis?

Answer 1

If the hypothesis is based on observations

Question 2

What are the benefits and limitations of a physical model?

Answer 2

Benefit: Looks like the thing it models

Limitation: Can not function like a living thing

Question 3

What are the benefits and limitations of a conceptual model?

Answer 3

Benefit: used to compare unfamiliar things with familiar things

Limitation: More abstract; can not be straightforward,./

Question 4

What are the benefits and limitations of a mathematical model?

Answer 4

Benefit: Can easily be used and is simple

Limitation: Have to be careful when creating a complex model

Question 5

Who discovered cells, and what was he looking at?

Answer 5

Robert Hook, looking at cork from trees.

Question 6

Who was the first person to see single celled organisms, also known as _____?

Answer 6

Anton van Leeuwenhoek; protus

Question 7

Name the 6 steps of the cell cycle

Answer 7

Interphase
Prophase
Metaphase
Anaphase
Telophase
Cytokinesis

Question 8

Vegetative propagation = _____ reproduction

Answer 8

Asexual

Question 9

_____(Female part of flower) _____, _____ and _____

_____(Male part of flower) _____, _____

Answer 9

Pistil: Stigma, Style, ovary
Stamen: Anther, filament

Question 10

Define diffusion

Answer 10

The movement of particles from areas of high concentration to areas of lower concentration

Question 11

What is the function of the cuticle on a plant?

Answer 11

To prevent water loss

Question 12

What are the 3 parts of the cell theory?

Answer 12

1) The cell is the basic unit of all things
2) Every organism is made of one or more cells
3) All cells come from existing cells

Question 13

Xylem :
Carries _____ flows _____ comes from the _____
Phloem:

Answer 13

Xylem: Water + minerals, Up, Roots

Phloem: Glucose, Down, Leaves

Question 14

What is the difference between passive and active transport? What is it?

Answer 14

Active: Requires ATP
Passive: does not Require ATP
Osmosis

Question 15

What are the 3 organelles only found in plant cells?

Answer 15

vacuole
chloroplast
cell wall

Question 16

How do large particles get in and out of cells?

Answer 16

Exocitosis

Endocytosis

Question 17

What are the 4 types of breathing?

Answer 17

1) Lungs
2) Gills
3) Spiracle
4) Skin

Question 18

What is the function of the lymphatic system? To return _____ _____ to _____ _____ and destroys things that could ____ you

Answer 18

Leaked fluids to blood vessels; harm

Question 19

what are nucleotides made of?

Answer 19

a sugar, phosphate, and a base

Question 20

Who discovered that the amount of G = the amount of C and the amount of T = the amount of A?

Answer 20

Chargaff

Question 21

What is the function of the nervous system? ____ and transmits info aboutwhat is going on ____ and ____ of your body

Answer 21

receives

inside and outside

Question 22

What are the 3 models?

Answer 22

Mathematical, Conceptual, Physical

Question 23

What are the main components of a controlled experiment?
2 or more _____ groups
1 _____ group
The factor that changes is the _____

Answer 23

Experimental
control
variable

Question 24

The ovule becomes a _____ once fertilized

Answer 24

seed

Question 25

an ovary becomes a _____ once fertilized

Answer 25

Fruit

Question 26

Name the reactants of cellular respiration

Answer 26

oxygen and glucose

Question 27

Do bacterium have a nucleus?

Answer 27

No, they are prokaryotic

Question 28

What type of reproduction is artificial insinimation

Answer 28

sexual

Question 29

What type of reproduction is hermaphrodism

Answer 29

sexual

Question 30

What type of reproduction is budding

Answer 30

Asexual

Question 31

Define angiosperm

Answer 31

A flowering plant that produces seeds within a fruit

Question 32

What type of reproduction is runners

Answer 32

asexual

Question 33

Give an organism for regeneration

Answer 33

Starfish

Question 34

Give an organism for budding

Answer 34

yeast, sponges

Question 35

Give an organism for cuttings

Answer 35

ivy

Question 36

Give an organism for conjugation

Answer 36

bacteria

Question 37

Give an organism for hermaphrodism

Answer 37

frogs, worms

Question 38

What type of reproduction is runners

Answer 38

Asexual

Question 39

Give an organism for artificial insemination

Answer 39

zoo animals

Question 40

What is the function of the roots?

Answer 40

To take in water for photosynthesis

Question 41

What is the function of leaves?

Answer 41

To take in oxygen and release carbon dioxide, and to absorb sunlight for photosynthesis

Question 42

What is the function of the stem?

Answer 42

To deliver materials to the leaf and roots and store them also.

Question 43

List the 3 steps of pollination

Answer 43

1) The pollinator lands on flower A and collects pollen from it 2) The pollinator lands on the stigma of flower B and puts pollen on it 3) The pollen travels down the style and too the ovary to fertilize the ovules

Question 44

What happens to a plant cell during cytokinesis that doesn't happen to an animal cell?

Answer 44

a cell plate forms on the bottom of the plant cell

Question 45

What is the function of the skeletal system?

Answer 45

To protect organs and created new blood cells from marrow

Question 46

vWhat is the function of the Endocrine system?

Answer 46

To produce hormones that regulate growth, development, and homeostsis

Question 47

What is the main organ of the endocrine system?

Answer 47

Pancreas, Pituitary gland

Question 48

What is the function of the Integumentary system?

Answer 48

To form a protective covering on the outside of the body

Question 49

What is the material made of amino acids that cause most of the physical differences we see?

Answer 49

Proteins

Question 50

What 3 things did Anton Van Leeuwhenhoek discover?

Answer 50

1) PRotus 2) Bacteria 3) Human blood cells being flatter than a bird's