1 cells

Question 1

A cell is the b_____ u___ of ____ consisting of a mass of living matter called _____________

Answer 1

basic unit of life, protoplasm

Question 2

Protoplasm consists of:
1.
2.
3.

Answer 2

1. cell surface membrane
2. cytoplasm
3. nucleus

Question 3

Cell surface membrane made up of ________&______ (p______-l______ bilayer). It is a ________ ________ membrane and it controls substances __________ & __________ the cell.

Answer 3

proteins & lipids (phospo-lipid bilayer), SELECTIVELY permeable, entering & leaving

Question 4

Cytoplasm is the _____-like substance filing inside of cell containing __________ & __________ materials. It is the site of ________ __________

Answer 4

jelly, organelles, dissolved, cellular activities

Question 5

Organelles are cellular structures that _________ specific jobs within a cell. (e.g. …)

Answer 5

performs, (e.g. mitochondria, endoplasmic reticulum, Golgi body, ribosomes)

Question 6

Nucleus surrounded by membrane called _________ membrane, which has _________ _____ and is continuous with ___. The nucleus _________ cell activities like ______ & _______.

Answer 6

nuclear, nuclear pores, ER, controls, growth & repair

Question 7

Nucleus is essential for ____ __________. Cells without nucleus (e.g. ____), ______ ______

Answer 7

cell division, RBCs, CANNOT divide

Question 8

Nucleus contains ____________ (made up of proteins and a compound called ___). During mitosis, __________ condense & shorten to form ___________

Answer 8

chromatin, DeoxyriboNucleicAcid, chromatin , chromosomes

Question 9

Rough Endoplasmic Reticulum consists of a n_________ of m_________ t________. __________ present on surface. RER ________ protein made by ________ into its ______ for p________ & e_________.

Answer 9

network of membranous tubules, Ribosomes, transports, ribosomes, lumen, packaging & export.

Question 10

RER is also ________with nuclear membrane and ________ proteins

Answer 10

continuous, modifies

Question 11

Ribosomes attached to ___ synthesises ________ which is transported by ___ to ______ ____ for secretion ___ __ ____

Answer 11

RER, proteins, RER, Golgi body, out of cell

Question 12

Free ribosomes synthesises ________ to be used within the _________ of the ____

Answer 12

proteins, cytoplasm, cell

Question 13

Smooth Endoplasmic Reticulum consists of a n_________ of m_________ t________, but do not have _________ attached on its walls.

Answer 13

network of membranous tubules, ribosomes

Question 14

SER synthesises ____ & _________ (___ hormones of mammals). SER converts _________ substances into ________ ones a.k.a. ______________

Answer 14

fats, steroids (sex), harmful, harmless, detoxification

Question 15

Golgi body is a _____ of flattened membranous spaces. It m_________ substances made by __ & p________ them in _________ for secretion ___ __ ____.

Answer 15

stack, modifies, ER, packages vesicles, out of cell

Question 16

Vesicles ____ on 1 side of GB and _____ ___ at the other end (a.k.a. __________ vesicles)

Answer 16

fuse, pinch off, secretory

Question 17

A mitochondrion is a d_____-m________ organelle which is the site of c_______ r_________ to r_____ e_______. This e______ may be used for g_____, r_________ & ___

Answer 17

double-membraned, cellular resp., release energy, energy, growth, reprod. & AT

Question 18

Chloroplasts are d_____-m________ organelles which contains flattened stacks of ___________, which is essential for __________.

Answer 18

double-membraned, chlorophyll, photosynthesis

Question 19

Vacuoles are ______-filled spaces enclosed by a _____. N___________ & s____ in animal cells (that exist __________), l_____, c______ & s_______ in plant cells (that contain ____ ___)

Answer 19

fluid, ppm, numerous, small, temporarily, large, central, singular, cell sap

Question 20

Vacuoles ______ substances, ________ harmful substances and maintains ______ in plant cells

Answer 20

stores, isolates, turgor

Question 21

Cell wall encloses whole ______ cell, made of _______. F____ p_______, gives cell its ______ _____ and gives structural ______ & ________. (prevents cell ________)

Answer 21

plant, cellulose, fully permeable, fixed shape, support, protection, bursting

Question 22

Differentiation is the process which a cell becomes _________ for its function

Answer 22

specialised

Question 23

A red blood cell’s function is to…

Answer 23

transport O2 from the lungs to the rest of the body

Question 24

1. RBC contains ________ which binds with ___ and transports it around body.
2. RBC has no _______ , so more __________ can be carried and more ___ transported.

Answer 24

1. haemoglobin, O2
2. nucleus, haemoglobin, O2

Question 25

3. RBC has a c________, b________ shape to increase ____ so ___ can diffuse in & out of RBC ______
4. RBC has a _______ shape to allow it to _______ through __________ easily.

Answer 25

3. circular, biconcave, SA:V, O2, faster
4. flexible, squeeze, capillaries

Question 26

A root hair cell’s function is to…

Answer 26

absorb water and mineral salts from soil by roots.

Question 27

1. RHC has a l___, n______ p________ to increase _____ for faster _____

Answer 27

large, narrow protrusion, SA:V, r.o.d.