WorksheetsSemester 1 Revision
Total questions: 117
Worksheet time: 1hrs 11mins
Chloroplasts are never found in animal cells. In plant cells, though, they are present, and they contain ____________________.
A green pigment called chlorophyll.
Glycogen granules, or "glycosome".
Endoplasmic Reticulum
Chloroplasts are never found in animal cells. In plant cells, though, they are present, and they contain ____________________.
A green pigment called chlorophyll.
Glycogen granules, or "glycosome".
Endoplasmic Reticulum
What is the use of ciliated cells?
Move mucus upward.
Absorb water and mineral cells.
Transport water and mineral salts; help in support.
Transmit information in the form of electrical impulses.
Where can the sperm and egg cells be found?
In the blood of mammals.
In the testes and ovaries.
In stems, roots, and leaves of trees.
What is a tissue?
Groups of cells that perform the same function.
Several organs working together.
Onion bulb.
Function of testes and egg cells.
Photosynthesis.
Transport oxygen to all parts of the human body.
Fuse to produce zygote.
Where are xylem vessels present?
Lining the trachea and bronchi.
Near the ends of plant roots.
In stems, roots, and leaves of plants.
In the bodies of mammals.
Throughout the human blood.
Animal cells:
- Do not have chloroplasts.
- Irregular in shape.
- Sometimes have glycogen granules.
And plants:
Have chloroplasts, also irregular in shape, and store energy as starch.
Don't chloroplasts, regular in shape, also have glycogen granules.
Have chloroplasts, also regular in shape, and store energy as starch.
The diagram shows the structure of a leaf palisade cell.
Which features are also found in a liver cell?
1 and 2
2 and 5
3 and 4
4 and 5
The diagram shows the detailed structure of a plant cell.
What is organelle X?
chloroplast
mitochondrion
nucleus
vacuole
The diagram shows an animal whose scientific name is Falco peregrinus.
To which species does it belong?
bird
F. peregrinus
Falco
vertebrate
Which name is given to a group of individuals that can reproduce to produce fertile offspring?
a genus
a kingdom
a species
an organ system
The diagram shows a plant that has been placed near a sunlit window for a few weeks.
Which two characteristics of living organisms have affected the shape of the plant?
excretion and sensitivity
growth and reproduction
reproduction and excretion
sensitivity and growth
Which diagram represents a typical plant cell?
A
B
C
D
A student draws a diagram of a mitochondria
The diagram has a magnification of ×20 000.
The diagram is 5 cm long.
What is the actual size of the mitochondria?
0.025 μm
0.25 μm
2.5 μm
25 μm
The diagram shows an image of a chloroplast.
The image is 5 cm long.
The actual length of the chloroplast is 5 μm.
What is the magnification of the image?
x10
x1000
x10 000
x100 000
The diagram shows a sample of material taken from an organism.
Which level of organisation does the sample show?
tissue
cell
organ
organ system
Each of the diagrams shows an area of cytoplasm.
Which is from a prokaryote?
A
B
C
D
Which of the following is true of all arthropods?
they have six legs
they have wings
they have segmented bodies
they have antennae
Which cell organelle makes protein to be used inside the cell?
nucleus
rough endoplasmic reticulum
mitochondrion
ribosome
Which of the following is true of dicotyledon plants?
their leaves have parallel veins
their leaves are broad and wide
they have one cotyledon in their seeds
they have a branched root system
Sunflowers have yellow flowers.
Which cell structure is found in sunflower leaves but not in the petals of the flowers?
cell membrane
cell wall
chloroplast
vacuole
What is this and what is it's function?
Cell wall - gives structure and prevents bursting
Cell membrane - gives structure and prevents bursting
Cell wall - Controls what can enter and leave a cell
Cell membrane - Controls what can enter and leave a cell
What is this organelle called?
Chlorophyll
Chloroplast
Photosynthesis
Glucose and oxygen
Which cell parts can be seen in this picture?
Cell membrane
Cell wall
Cytoplasm
Nucleus
Chloroplast
What would you find inside this structure?
Genetic material
Controls the cell
Chlorophyll
Cytoplasm
These are __________ cells and their function is ___________
Leaf / photosynthesis
Root hair / absorbing water from the soil
Xylem / transpiration
Phloem / translocation
Which picture shows the nucleus in the correct place?
A
B
C
D
The diagram shows apparatus which can be used to demonstrate osmosis.
After one hour, what would happen to the liquid levels in the glass tubes?
Level in 1 would fall; Level in 2 would fall
Level in 1 would fall; Level in 2 would rise
Level in 1 would rise; Level in 2 would fall
Level in 1 would rise; Level in 2 would rise
The data show the results of an investigation on osmosis using sticks of potato.
Which statements explain this change in length?
A
B
C
D
The diagram shows two cells. The net movement of water is from cell X to cell Y.
What causes water to pass from cell X to cell Y?
water potential is higher in cell X and active transport occurs
water potential is higher in cell X and osmosis occurs
water potential is lower in cell X and active transport occurs
water potential is lower in cell X and osmosis occurs
Which diagram represents a typical plant cell?
A
B
C
D
The diagram shows part of a plant root in the soil. The root is absorbing water.
At which labelled point is the water potential highest?
A
B
C
D
The diagram shows two solutions that are separated by a partially permeable membrane.
In which direction will most water molecules move in relation to their concentration gradient?
from X to Y against their concentration gradient
from X to Y down their concentration gradient
from Y to X against their concentration gradient
from Y to X down their concentration gradient
The diagram represents two liquids, separated by a membrane through which osmosis can occur.
Which statement describes how the molecules will move?
Molecules of dissolved substance move from left to right.
Molecules of dissolved substance move from right to left.
Overall, water molecules move from left to right.
Overall, water molecules move from right to left.
Which characteristics are correct for both osmosis and diffusion?
A
B
C
D
The eat movement of molecules from higher concentration to lower concentration is down the concentration gradient as a result of the random movement
active transport
What causes water to enter plant roots from the soil?
water potential in xylem is higher than the soil
water potential in root hair cells is higher than the soil
water potential in root hair cells is lower than the soil
water potential in xylem is lower than the soil
Which way would the purple molecules move through the semi permeable membrane?
From the A side to the B side
From the B side to the A side
None of the purple molecules would move.
Which of the following is not true of diffusion?
Particles move down a concentration gradient
It does not require energy from respiration
A partially permeable membrane is needed
It happens faster when the surface area is increased
The diagram shows a plant cell which has lost water to its surroundings by osmosis.
Which part is the partially permeable membrane?
A
B
C
D
Which statement describes active transport?
the movement of ions through proteins in a cell membrane, releasing energy
the movement of ions through proteins in a cell membrane, using energy
the movement of water through lipids in a cell membrane, releasing energy
the movement of water through lipids in a cell membrane, using energy
What happens to a plant cell when it is placed in a hypotonic solution?
it becomes turgid
it becomes plasmolysed
it undergoes crenation
it becomes flaccid
Which diagram shows the appearance of a plant cell several minutes after it has been placed in a concentrated solution of sugar?
A
B
C
D
The arrows in the diagram show the movement of oxygen and carbon dioxide between body cells and the blood in capillaries.
By which process does this movement occur?
diffusion
excretion
osmosis
respiration
The diagram shows the apparatus used in an experiment on osmosis.
In which tubes will osmosis take place?
1 and 2
1 and 4
2 and 3
3 and 4
The diagram shows water and sugar molecules on either side of a partially permeable membrane.
What happens during osmosis?
More sugar molecules pass through the membrane from X to Y than from Y to X.
More sugar molecules pass through the membrane from Y to X than from X to Y.
More water molecules pass through the membrane from X to Y than from Y to X.
More water molecules pass through the membrane from Y to X than from X to Y.
Which diagram shows the changes in appearance of a plant cell when it remains in a concentrated sugar solution for thirty minutes?
A
B
C
D
A
B
C
D
A
B
C
D
During osmosis, which molecules move and through which type of membrane?
A
B
C
D
Which statements are correct for both diffusion and osmosis?
A
B
C
D
A
B
C
D
Red blood cells were placed in a dilute solution.
Movement of water across the cell membrane caused a change in their appearance.
What explains this movement?
A
B
C
D
What is the optimal pH for this enzyme?
6
10
9
7
Observe the image well. Then choose the correct statement.
A is an artery since it has the biggest lumen to carry more blood.
A is a vein since it is very elastic.
B is an artery because it has thick muscular and elastic walls.
B is a vein since all veins have a small lumen
The diagram shows some parts from the blood of a mammal.
Which part would contain the breakdown products of bacterial cells?
A
B
C
D
The diagram shows a double circulatory system. Which vessels carry oxygenated blood?
1 and 2
1 and 4
2 and 3
2 and 4
Disease causing agents such as bacteria and viruses are called _______________.
pathogens
antibodies
villians
particles
The diagram shows one way the body defends itself against pathogens.
What is the name of this defence mechanism?
A antibody production
B egestion
C phagocytosis
D vaccination
Pathogens spread from person to person by objects (chairs, medical equipment, office supplies, doorknobs, etc.)
Direct Contact
Indirect Contact
Airborne Transmission
Foodborne Tranmission
Vector-Borne Transmission
The correct word equation for Anaerobic respiration is
glucose → lactic acid + oxygen
glucose → lactic acid (+ energy released)
glucose + oxygen → lactic acid (+ energy released)
lactic acid → energy released
What term is given to an organism that carries two different alleles of a gene
homozygous
dominant
heterozygous
recessive
What word is used to describe the transmission of genetic information from generation to generation?
phenotype
genotype
allele
inheritance
A plant has two different alleles of a gene, G, resulting in it having a green seed.
Which row of the table describes the phenotype and genotype of the seeds of this plant?
A
B
C
D
The trait that will always be expressed if at least one copy of an allele is present.
Recessive
Dominant
DNA
The trait that will be expressed only if two copies of the allele are present.
Recessive
Dominant
DNA
Which of the following is heterozygous?
AA
Aa
aa
22
What is the function of the X and Y chromosomes?
Eye colour
Hair colour
Height
Sex
Sickled RBC
A
B
A group of disorders that affects hemoglobin, the molecule in red blood cells that delivers oxygen to cells throughout the body.
Sickle Cell Disease
Hemophilia
HIV
Cystic Fibrosis
What protein does the mutation for sickle cell affect?
Oxygen
Red Blood Cell
Insulin
Haemoglobin
Look at the pedigree chart for sickle cell. Individuals 2 and 3 both have sickle cell. What must be the genotypes of their parents?
HbSHbS (both have sickle cell disease)
HbAHbS (both carriers)
HbAHbA (both unaffected)
HbHb (both don't carry the gene)
Urea is made from excess..............
amino acids
urea
bile
urine
A longitudinal section of the kidney and some associated structures have been labelled.
Which has been labelled correctly?
If you have kidney disease, what will complete the balancing of salts, glucose concentration and removal of urea from the blood?
Your liver
A placenta
Your bladder
A kidney dialysis machine
What type of blood vessel is connected to the dialysis machine?
Capillary
Vein
Artery
Lacteal
The diagram shows a cell.
What type of cell is shown?
ciliated cell
motor neurone
relay neurone
sensory neurone
The diagram shows the muscles which control the size of the pupil in an eye.
How do the muscles make the pupil larger?
circular muscles contract; radial muscles contract.
circular muscles contract; radial muscles relax.
circular muscles relax; radial muscles contract.
circular muscles relax; radial muscles relax.
The diagram shows a simple reflex arc.
Which labelled part is the sensory neurone?
A
B
C
D
What is CNS?
Central Neurone System
Brain and spinal cord
Peripheral neurones
Synapses that connect neurones
What type of neurone is shown on this picture as green?
Sensory
Relay
Motor
Synapse
What type of neurone is shown on this image as purple?
Sensory
Motor
Relay
Synapse
The diagram shows a simple reflex arc.
Which labelled part is the sensory neurone?
A
B
C
D
The diagram shows the muscles which control the size of the pupil in an eye.
How do the muscles make the pupil larger?
circular muscles contract; radial muscles contract.
circular muscles contract; radial muscles relax.
circular muscles relax; radial muscles contract.
circular muscles relax; radial muscles relax.
Which hormone is known as the fight or flight hormone?
Adrenaline
Glucagon
Insulin
Glycogen
What are the effects of insulin and glucagon on the concentration of blood glucose?
A
B
C
D
Which letter represents a part that may undergo vasodilation?
C
D
E
F
Which of these would allow you to increase your body temperature if it went below 37oC?
Sweating
Vasoconstriction
Vasodilation
Shivering
Increase in metabolism (respiration)
What changes occur to cool the body down
vasoconstriction, increase sweating and hairs lie flat
vasodilation, increase sweating and hair erector muscle relaxes and hairs lie flat
Vasodilation, reduced sweating, hair erector muscle relax and hair stand up.
Vasoconstriction, increase sweating and hair erector muscle relaxes and hairs lie flat
