Biology: Unit 3

Ace your homework & exams now with Quizwiz!

Which statement(s) corresponds to cellular respiration?

-CO 2 diffuses passively out of the cell -O 2 diffuses passively when converted to CO 2

Why will external fluid flow into a plant cell?

-because the external salt concentration is less -because the external water concentration is greater

List the four organ systems which are operational in a amoeba.

-digestion -excretion -reproduction -respiration

TRUE/FALSE: Ribosomal RNA is produced in the cytoplasm.

FALSE

Simple cell division of plants and animals is an _______________ process.

a completely different

The simplest operational cell is still more complex than ________________.

a computer

The plasma membrane of a human cell:

acts as a selective gatekeeper

Some leukocytes absorb entire _________________ by the process of phagocytosis.

bacteria

Current scientific methods _________________ conclusively distinguish between all microorganisms

can NOT

each cell possesses a life of its own

cell theory

outer covering around plant cell made of fibrous material

cell wall

According to the Cell Theory, the _____________ is the basic unit of life; according to the Organismal Theory the __________________ is the basic unit.

cell; organism

all cellular material outside the nucleus

cytoplasm

The natural tendency of molecules to move from higher to lower concentrations is: _______________

diffusion

an outer covering of cells

epidermis

A leukocyte is responsible for:

fighting disease by phagocytosis or antibody production

What characteristic is completely unique about DNA?

it contains coded information

The relative concentration of water in a hypertonic solution is:

low

The Krebs cycle takes place within the :

mitochondria

The taxonomic classification of all organisms is ______________.

not certain

small structure(s) within nucleus

nucleolus

control center of the cell

nucleus

Any functional plant or animal with interrelated parts is considered as a(n) _____________.

organism

functional plant or animal

organism

a functioning organism represents life

organismal theory

hypertonic: _______________ the cell

out of

controls what comes into and goes out of the cell

plasma membrane

Which statements describe organisms referred to as "colonial"?

similar bacteria or protozoa which group together

large storage structures

vacuole


Related study sets

Functional classification of joints chapter 9 A & P

View Set

Accounting 101-Orientation Assignment

View Set

CH 17 MB transcription and translation

View Set

Ch. 14 Health Promotion of the School Aged Child & Family

View Set

Chapter 5: Cost-Volume- Profit Relationships

View Set

Emergent Abdominal Ultrasound Procedures Chapter 19

View Set

CH 4 Pretest, CH 6 Pretest, CH 5 Pretest

View Set