Question 1

Which of the following is NOT true about the signs of life?

Accepted Answer

In Growth, multicellular organisms increase in cell size while unicellular organisms increase in cell number

Answer

Metabolism is the sum of chemical reactions that use/store energy. It has 2 types: Catabolism & Anabolism

Answer

Homeostasis is the ability of organisms to maintain internal condition with tolerable instances

Answer

Irritability is the ability of organisms to respond to changes on surroundings

Question 2

What is the function of the cell membrane?

Accepted Answer

Regulate the movement of substances in and out of the cell

Answer

Hold internal cell structures

Answer

Store genetic information

Answer

Synthesize proteins

Question 3

Which of the following is TRUE about the 10 signs of life?

Accepted Answer

Organisms must respond to its surroundings

Answer

Atoms are the basic unit that has life characteristics according to the levels of organization of life

Answer

There are 3 types of movement that organisms can perform voluntarily

Answer

Reproduction has 2 types: Asexual and Bisexual

Question 4

It is a type of Metabolism that assembles and stores energy.

Accepted Answer

Anabolism

Question 5

TRUE OR FALSE. In the 10 signs of life, a community is comprised of populations of different species.

Accepted Answer

TRUE

Answer

FALSE

Question 6

Basic unit of life

Accepted Answer

cells

Question 7

Which of the following is NOT included in the Protrusions group in the External Accessory Cell Structure?

Accepted Answer

Plasmid

Answer

Flagellum

Answer

Cilia

Answer

Pilia

Question 8

Which of the following is included in the Non Membrane Bound Internal Accessory Cell Structure?

Accepted Answer

Plasmid

Answer

Golgi Body

Answer

Intercellular Junctions

Answer

Plastid

Question 9

TRUE OR FALSE. Plasmid belongs to the group of Membrane Bound Internal Accessory Cell Structure

Accepted Answer

FALSE

Answer

TRUE

Question 10

Which of the following is NOT included in the basic structures of the cell?

Accepted Answer

Lysosome

Answer

Ribosome

Answer

Chromosome

Answer

None of the above

Question 11

What is NOT true about the Cell Membrane?

Accepted Answer

It permits all things to enter and exit the cell

Answer

It acts as a boundary of the cell

Answer

Cholesterols insert themselves inside the phospholipid bilayer

Answer

Sphingolipids are one of its many components.

Question 12

What is the function of the cell membrane?

Accepted Answer

Regulates the passage of substances in and out of the cell

Answer

Maintains the shape of the cell

Answer

Stores genetic material of the cell

Answer

Synthesizes protein

Question 13

What is the main component of the cell membrane?

Accepted Answer

Phospholipids

Answer

Steroids

Answer

Glycolipids

Answer

Triglycerides

Question 14

Which of the following is a characteristic of the cell membrane?

Accepted Answer

It is semi-permeable

Answer

It is composed of lipids only

Answer

It does not play a role in cell communication

Answer

It is found only in cells of multicellular organisms

Question 15

Which of the following is NOT a type of movement the fluid mosaic model

Accepted Answer

Transversal

Answer

Lateral

Answer

Flexion

Answer

Rotation

Question 16

What model suggests that the cell membrane is comprised of many different components moving in different directions

Accepted Answer

Fluid Mosaic Model

Answer

Henderson and Unwin’s Membrane theory

Answer

Unit Membrane Model

Answer

Lipid-Protein Sandwich Model

Question 17

Which of the following is responsible for maintaining the fluidity of the cell membrane?

Accepted Answer

Cholesterol

Answer

Carbohydrates

Answer

Phosphate head

Answer

Fatty acid tails

Question 18

choose what best describes cell membrane fluidity

Accepted Answer

Double bonded hydrocarbon chains of the fatty acid tails increases the fluidity of the cell membrane

Answer

A cell membrane will be more fluid the less interactions between the phosphate heads.

Answer

Fluidity is directly proportional to the length of hydrocarbon chains

Answer

Fluidity is inversely proportional to the number of cholesterol present inside the phospholipid bilayer

Question 19

Membrane fluidity is directly proportional to

Accepted Answer

Temperature

Answer

Cholesterol amount

Answer

Hydrocarbon chain length

Answer

Hydrocarbon chain saturation

Question 20

Which one of the following cholesterols is good for our membranes

Accepted Answer

HDL

Answer

LDL

Answer

HDR

Answer

LDR

Question 21

What part of the cell acts as the site of chemical reactions and occupies the space between cell membranes and other internal components?

Accepted Answer

cytosol

Question 22

When killing a cell, what type of protein in the cell membrane do we target when using detergents or similar products as the means of killing

Accepted Answer

Integral Proteins

Answer

Differential Proteins

Answer

Peripheral Proteins

Answer

Glycoproteins

Question 23

Stabilizes the cell membrane through the help of
cholesterol

Accepted Answer

Sphingolipids

Answer

Triglycerides

Answer

Phospholipids

Answer

Glycolipids

Question 24

Which of the following is NOT true about the cytosol?

Accepted Answer

Cytosol together with chromosome or
nucleus, if present, is called cytoplasm

Answer

It is part of the cytoplasm but it excludes the other internal components

Answer

It is the site of many chemical reactions inside the cell

Answer

It is a jelly like fluid that holds the internal cell structures together

Question 25

True or false. Phospholipids are amphiphatic

Accepted Answer

TRUE

Answer

FALSE

Question 26

True or false. Phosphate heads of phospholipids are polar so it is attracted to water

Accepted Answer

TRUE

Answer

FALSE

Question 27

True or false. The phosphate head of phospholipids is negatively charged so it is attracted to the oxygen side of water molecules.

Accepted Answer

FALSE

Answer

TRUE

Question 28

It is is a model for the cell membrane based on the trilaminar appearance under the electron microscope

Accepted Answer

unit membrane model

Question 29

protein factory of the cell

Accepted Answer

ribosomes

Question 30

which of the following is not a site in the large subunit of the ribosome

Accepted Answer

D

Answer

P

Answer

E

Answer

A

Question 31

Which of the following rna comprises the ribosome structure

Accepted Answer

rRNA

Answer

tRNA

Answer

mRNA

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