Quiz about Smalls Biology Unit 2 Pre-test

Question 1

When you step out into the cold, your body shivers in order to keep its temperature at 98.6F. Which characteristic of life does this represent?

Accepted Answer

All living things maintain homeostasis

Answer

All living things use energy

Answer

All living things contain cells

Answer

All living things grow

Question 2

Rocks are not living because

Accepted Answer

they are not made of cells

Answer

they never move

Answer

they aren't needed for humans

Answer

they don't break down

Question 3

A camel has eyelashes that work to keep the dust and sand out of its eyes. Which characteristic of life does this represent?

Accepted Answer

All living things adapt to their environment

Answer

All living things grow

Answer

All living things have cells

Answer

All living things use energy

Question 4

Which statement describes ALL living things?

Accepted Answer

They are composed of one or more cells.

Answer

They must reproduce sexually.

Answer

They have organ systems to carry out the processes of life.

Answer

They are capable of making their own food.

Question 5

A baby song bird hatches from its egg with both parent songbirds watching. Which characteristic of life does this represent?

Accepted Answer

All living things reproduce

Answer

All living things maintain homeostasis

Answer

All living things use energy

Answer

All living things grow

Question 6

Which characteristic is shown: A plant switches position and follows the sunlight throughout the day.

Accepted Answer

Respond to a stimulus

Answer

Grow and develop

Answer

Acquire and use energy

Answer

Reproduce

Question 7

Which of these is not true about all organisms?

Accepted Answer

all living things are multicellular

Answer

all living things obtain and use energy

Answer

all living things reproduce

Question 8

What tool do you use to view the cells?

Accepted Answer

microscope

Answer

metric ruler

Answer

centrifuge

Answer

telescope

Question 9

All living things are made up of...

Accepted Answer

cells

Answer

cell tissues

Answer

organ

Answer

organ systems

Question 10

All cells come from___________ cells.

Accepted Answer

pre-existing

Answer

pregnant

Answer

paternal

Answer

pin size

Question 11

what is a cell classified as?

Accepted Answer

a basic unit of structure and function of all living organisms

Answer

a unit based on only plants and animals that are living

Question 12

Cells are often called "the ____ of life."

Accepted Answer

building blocks

Answer

bread

Answer

road map

Answer

meaning

Question 13

There are three parts to the cell theory. Which is NOT one of those parts?

Accepted Answer

Cells spontaneously arise from carbon and nutrients carried in the bloodstream.

Answer

All organisms are composed of one or more cells.

Answer

The cell is the basic unit of structure and organization in organisms.

Answer

All cells come from pre-existing cells.

Question 14

Protects the inside of a cell from the environment

Accepted Answer

cell membrane

Answer

chloroplast

Answer

cytoplasm

Answer

cytoskeleton

Question 15

Stiff structure outside the cell membrane

Accepted Answer

cell wall

Answer

cytoskeleton

Answer

nucleus

Answer

chloroplast

Question 16

Membrane-bound organelle that uses light energy and makes food

Accepted Answer

chloroplast

Answer

cytoplasm

Answer

cytoskeleton

Answer

protein

Question 17

Fluid inside a cell that contains salts and other molecules

Accepted Answer

cytoplasm

Answer

cytoskeleton

Answer

nucleic acid

Answer

lipid

Question 18

Directs all cell activities and contains DNA

Accepted Answer

nucleus

Answer

organelle

Answer

lipid

Answer

envelope

Question 19

Which cells numbered below would be classified as eukaryotic?

Accepted Answer

1 and 2

Answer

2 and 3

Answer

2 and 4

Answer

3 and 4

Question 20

Study the chart below. Which student correctly identified the characteristics of a prokaryotic cell?

Accepted Answer

Student 4

Answer

Student 1

Answer

Student 2

Answer

Student 3

Question 21

Which organelle is present in the cells of a bean plant but absent in the cells of a mouse?

Accepted Answer

chloroplast

Answer

mitochondria

Answer

cell membrane

Answer

rough endoplasmic reticulum

Question 22

Bacteria are an example of a ____ cell.

Accepted Answer

prokaryotic

Answer

eukaryotic

Answer

plant

Answer

animal

Question 23

A cell from heart muscle uses lots of energy to pump blood through the body. Which cellular organelle would likely be found in large amounts in heart muscle cells?

Accepted Answer

mitochondria

Answer

lysosomes

Answer

chloroplasts

Answer

vacuoles

Question 24

Plants and animal cells both have a nucleus.

Accepted Answer

True

Answer

False

Question 25

A single-celled organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane -bound organelle .

Accepted Answer

Prokaryote

Answer

Eukaryote

Answer

Nucleus

Answer

Single-celled organism

Question 26

A lysosome's main function is to...

Accepted Answer

Break down materials

Answer

Use light energy to make food

Answer

Protect the cell

Answer

Fight off infections

Question 27

The girl sitting two rows ahead of you put on too much perfume this morning. Is this diffusion, osmosis or active transport?

Accepted Answer

diffusion

Answer

osmosis

Answer

active transport

Question 28

The picture is an example of...

Accepted Answer

active tranport

Answer

passive transport

Answer

diffusion

Answer

osmosis

Question 29

You put raisins in a glass of water and they plump up. Is this diffusion, osmosis or active transport?

Accepted Answer

osmosis

Answer

diffusion

Answer

active transport

Question 30

Solutes move against the concentration gradient

Accepted Answer

Active Transport

Answer

Passive Transport

Question 31

Which of the following is a sample of active transport?

Accepted Answer

plant root absorbing mineral ions from the soil

Answer

movement of oxygen from alveoli into red blood cell

Answer

movement of water across cell membrane

Answer

uptake of water by the root hair of the plant

Question 32

Which of the following is a sample of osmosis?

Accepted Answer

plant root absorbing water from the soil

Answer

plant root absorbing mineral ions from the soil

Answer

the scent from a bunch of flowers spreads throughout a room

Answer

carbon dioxide move from air into leaves through stomata.

Question 33

Which one is the definition of Diffusion ?

Accepted Answer

net movement of molecule from a region of higher concentration to region of lower concentration. Molecule down a concentration gradient

Answer

movement of particles through the cell membrane from a region of lower concentration to a region of higher concentration using energy in the form of ATP.

Answer

passage of water molecules from a region of their higher concentration to a region of their lower concentration through a partially permeable membrane

Answer

net movement of molecule from a region of lower concentration to region of higher concentration. Molecule down a concentration gradient

Question 34

Which is true about active transport?

Accepted Answer

It requires energy

Answer

it does not require energy

Answer

It moves substances down the concentration gradient

Answer

it moves material from high to low concentration

Question 35

The cell membrane is semi-permable, which means what?

Accepted Answer

certain things can pass through

Answer

the concentration levels are different

Answer

it is permanent

Answer

things are stuck

Answer

It drives a big truck

Question 36

In passive transport, molecules move from an area of __________ concentration to an area of __________ concentraiton

Accepted Answer

high, low

Answer

low, high

Answer

water, salt

Answer

active, passive

Question 37

Which is NOT a form of active transport?

Accepted Answer

Osmosis

Answer

Endocytosis

Answer

Exocytosis

Answer

Pinocytosis

Question 38

Homeostasis is

Accepted Answer

The process by which organisms maintain a relatively stable internal environment

Answer

The process by which organisms change their internal environment

Answer

The process by which organisms adapt to their external environment

Answer

The process by which organisms evolve over time

Question 39

A Negative Feedback Loop is...

Accepted Answer

A process that counteracts a system's output

Answer

A process that reinforces a system's output

Answer

A process that has no effect on a system's output

Answer

A process that amplifies a system's output

Question 40

A Positive Feedback loop is...

Accepted Answer

A system where the output enhances the original stimulus

Answer

A system where the output suppresses the original stimulus

Answer

A system where the output has no effect on the original stimulus

Answer

A system where the output reverses the original stimulus

Question 41

During Homeostasis...

Accepted Answer

The sensor sends a message to the control center

Answer

The sensor sends a message to the effector

Answer

The effector sends a message to the control center

Answer

The control center sends a message to the sensor

Question 42

Negative feedback loops

Accepted Answer

Correct an imbalance in the opposite direction

Answer

Have negative effects on the body

Answer

Hurt the body

Answer

Help the body

Question 43

Positive feedback loops

Accepted Answer

Increase a change in the body

Answer

Are good things

Answer

Always heal the body

Answer

Are bad

Question 44

High solute solutions are

Accepted Answer

Hypertonic

Answer

Hypotonic

Answer

Isotonic

Answer

Biotic

Question 45

This graph demonstrates a

Accepted Answer

Positive feedback loop

Answer

Negative Feedback Loop

Answer

Hyptonic Loop

Answer

Phospholipid

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