Biology test 2

Which choice below correctly matches an organelle with its function?

smooth endoplasmic reticulum — lipid production

The function of a ribosome is to synthesize

proteins

Fungi are prokaryotes.

False

ALL cells have a nucleus.

False

ALL cells contain DNA.

True

The FINAL processing of proteins occurs in this organelle.

Golgi bodies

You examine a cell under the microscope.  You see evidence of chloroplasts, a nucleus and a cell wall.  This cell is most likely a 

 

both eukaryote and plant cell

This ORGANELLE is responsible for building ribosomes.

nucleolus

The sodium potassium pump is an example of 

primary active transport

The means by which a cell transports very LARGE molecules OUT of the cell is called

exocytosis

Which of the following statements about the sodium potassium pump is true?

It requires ATP to pump sodium and potassium ions against their concentration gradients

The “heads” of the phospholipid molecules of the plasma membrane are 

hydrophyllic

In an attempt to replenish the body fluids, a patient (who has had serious hemorrhage) accidentally receives a large transfusion of distilled water directly into one of his veins. This would probably

have serious, perhaps fatal effects because the red blood cells would tend to burst

The process of facilitated diffusion requires

all of these answers are correct

Sea water is approximately 3% salt. Sea water is hypertonic to the cells of freshwater fish. Therefore we can conclude that freshwater fish cells contain

less than 3% salt

You place a blood cell in an unknown solution.  The cell shrinks.  This information tells you that the unknown solution is ______ to the cell.

hypertonic

You place a blood cell in an unknown solution.  The cell swells and bursts.  This information tells you that the unknown solution is ______ to the cell.

hypotonic

You place a blood cell in an unknown solution.  The cell does not change size.  This information tells you that the unknown solution is ______ to the cell.

isotonic

Which of the following is the best definition for osmosis?

the diffusion of water across a semipermeable membrane

You make something to drink by mixing a packet of Kool-Aid with a cup of water.  What is the solute in this scenario?

Kool-Aid

Nucleus

Control

Ribosomes

Protein

Rough er

Protein

Smooth er

Lipid

Golgi

Package

mitochondria

Atp

Lysosome

Digest

Chloroplast

Photosynthesis

Cell wall

Support

Vacuole

Water

Who discovered/viewed cork?

Robert hook

Who viewed living microorganisms?

Leeuwenhoek

Plants made of cells?

Schleiden

Animals made of cells?

Schwann

Cells come from?

Preexisting cells

Basic unit of life?

Cell

Prokaryotes have a nucleus?

No

Eukaryotes have a nucleus?

Yes

Cell’s control center?

Nucleus

Makes ribosome subunits?

Nucleolus

Protein synthesis?

Ribosomes

Cell garbage disposal?

Lysosomes

Microtubule protein?

Tubulin

Microfilament protein?

Actin

Short movement structures?

Cilia

Long movement structure?

Flagella

Plant water storage?

Central vacuole

Chloroplast fluid?

Stroma

Individual chloroplast sacs?

Thylakoids

Stack of thylakoids?

Granum

Mitochondrial folds?

Cristae

Why cells stay small?

Volume increases faster than surface area