WorksheetsMID-TERM EXAMINATION IN GENERAL BIOLOGY
Total questions: 66
Worksheet time: 41mins
Who was the first person to see cells under the microscope and give them a name?
Anton Van Leeuwenhoek
Robert Hooke
Theodore Schwan
Matthias Schleiden
He discovered that all plants were made of cells, which contributed to the development of the cell theory.
Anton Van Leeuwenhoek
Robert Hooke
Theodor Schwann
Matthias Schleiden
He advanced the cell theory with his conclusion that cells could only come from other cells.
Anton Van Leeuwenhoek
Rudolph Virchow
Theodor Schwann
Robert Hooke
This structure serves as outer boundary of the eukaryotic cell:
flagella
cytoplasm
cell membrane
capsule
Unlike eukaryotic, prokaryotes do not have_____.
DNA
cytoplasm
cell walls
a membrane bound nucleus
Which of the following is NOT one of the main components of the cell theory?
Cells must contain DNA.
All living things are made of cells.
Cells can only come from other cells.
Cells are the basic unit of life.
Rudolf Virchow's observations helped to disprove was commonly held belief of the time?
evolution
the existence of molecules
spontaneous generation
atomic models
The word cyto means ________.
cells
dark
jelly
small
Tiny structures that carry out functions are collectively called:
animalcules
organelles
tissues
ribosomes
Which technology was essential for the development of the cell theory?
telescope
antiseptics
microwaves
microscope
What part of the cell is responsible for breaking down and digesting things?
ribosomes
lysosomes
endoplasmic reticulum
vacuole
Identify the organelle pictured
chloroplast
endoplasmic reticulum
golgi apparatus
mitochondria
What part of the cell serves as the intercellular highway?
endoplasmic reticulum
golgi apparatus
cell membrane
mitochondria
Which of the following would NOT find in a bacterial cell?
DNA
Cell membrane
Golgi apparatus
ribosomes
Which of the following is found in plant cells, but not animal cells?
cell wall
vacuole
mitochondria
endoplasmic reticulum
The jelly like interior of the cell is called the __________.
vacuole
cytoplasm
cytoskeleton
nucleus
Identify the organelle
ribosome
endoplasmic reticulum
mitochondria
lysosome
What part of the cell makes proteins?
ribosomes
mitochondria
lysosomes
vacuole
Where ribosomes usually located in animal and plant cells?
inside the nucleus
near the cell membrane
on the endoplasmic reticulum
inside the vacuole
What part of the cell serves to process, package and export proteins?
mitochondria
endoplasmic reticulum
nucleulus
golgi apparatus
Which of the following statements about living cells is false?
most are microscopic
They are found in animals but not in all plants.
They are smallest basic units that can carry out all of the functions that we normally define as life.
Chromosomes are found in _________ of cells.
nucleus
the cytoplasm
both the nucleus and the cytoplasm
Which of the following statement is true about the chromosomes of different plant and animal species?
They may differ in number, but are the same shape and size.
They may differ in the shape and size, but normally have the same number.
They may differ in number, shape, and size.
Which of the following statements is true about cells?
The nucleus is within the cell membrane which is surrounded by the nuclear membrane.
The nucleus is within the nuclear membrane which is surrounded by the cytoplasm.
The cytoplasm is within the nuclear membrane.
The sex chromosomes of normal females are ____.
XY
YY
XX
The genes on the sex chromosomes of female are _______ and those of males are mostly ________.
homologous : homologous
homologous : hemizygous
hemizygous : hemizygous
Autosomes
are all chromosomes other than sex chromosomes
are normal sex chromosomes
automatically determine the sex of children
Normal humans have _____ pairs of autosomes and _____ pair(s) of sex chromosomes.
23 and 23
23 and 2
46 and 1
22 and 1
The ______ is a strand of double helix molecules that resembles a twisted ladder.
RNA
DNA
ATP
A chromatid is ______________
one of the strands or arms of a chromosome.
the point of attachment of two strands of a chromosome.
a chromosome before it becomes visible during cell division.
A pigeon zygote contains 80 chromosomes. How many chromosomes did the zygote receive from its mother?
20
40
80
10
A porcupine has a chromosome number 2n=34 which of the following is true?
The species is diploid with 34 sets of chromosomes.
A gamete from this species is haploid with 17 chromosomes.
The species is haploid with 34 homologous pairs.
The species is diploid with 78 chromosomes.
Which of the following best describes in the formation of a zygote?
A sperm cell nucleus and an egg cell nucleus fuse.
Cell division produces a solid mass of cells.
Mitosis in a cell is accelerated.
A cell divides to form cells with half the initial genetic material.
Which of the following statements accurately compares somatic cells and gametes?
Somatic cells have 2n chromosomes and gametes have n chromosomes.
Gametes are diploid, while somatic cells are diploid.
Somatic cells are involved in reproduction and gametes are not.
Gametes and somatic cells both contain homologous pairs of chromosomes.
What do you call to this stage of mitosis?
prophase
prometaphase
metphase
telophase
How many chromosomes are shown in this picture? How many chromatids?
4 chromosomes, 4 chromatids
4 chromosomes, 8 chromatids
8 chromosomes, 4 chromatids
8 chromosomes, 8 chromatids
Something's wrong with this picture! What might explain the unusual pattern seen in this cell?
During metaphase, one of the chromosomes failed to bind microtubules from both spindle.
During prophase, one of the chromosomes failed to condense.
The cell made too many copies of its chromosomes.
The cell is actually undergoing meiosis.
When does crossing over occur during over meiosis?
Prophase II
Anaphase I
Metaphase I
Prophase I
Which stage of meiosis II is the cell in ?
Metaphase II
Prophase II
Anaphase II
Telophase II
Which of the following are true regarding the process of meiosis?
Sister chromatids in a cell undergoing meiosis are always identical.
Most homologue pairs do not have any cross overs during the prophase I.
Chromosome number is reduced from diploid to haploid.
Sister chromatids separate to opposite ends of the cell.
Which of the following is true of crossing over?
Segments of DNA are traded between unrelated chromosomes.
A chiasma indicates that crossover has occured.
Most homologue pairs do not have any crossover events.
Crossing over occurs more often in male gametes than female gametes.
Which mechanism requires energy?
osmosis
diffusion
active transport
facilitated diffusion
Which of the following is characteristic of cell membrane?
permeable
impermeable
semipermeable
none of these
Which solution contains a higher concentration of solute than the solution it is being compared with?
isotonic
hypotonic
hypertonic
equilibrium
Certain types of lymphocytes in the lymph nodes ingest bacteria and debris. This fusion most likely occurs by
exocytosis
phagocytosis
passive transport
pinocytosis
A substance that moves across a cell membrane without using the cell's energy tends to move_____.
toward the are where it is more concentrated
away from the area where it is less concentrated
away from the area where it is more concentrated
none of the above
Organisms whose cells do not have a nucleus are called _______.
plants
organelles
eukaryotes
prokaryotes
A cell is observed to contain a nucleus, mitochondria and chloroplasts. From this information you can conclude that the cell is:
a plant cell
an animal cell
a bacteria cell
a prokaryotic cell
The following events are occurring in both mitosis and meiosis Except.
cytokinesis
karyokinesis
DNA replication
pairing of homologous chromosomes.
Which of the following is involved in asexual reproduction?
mitosis
meiosis
binary fission
fragmentation
Simplest protein, the substance injected to diabetic patients.
(a)
Simplest sugar and the basic subunit of carbohydrates.
(a)
It acts as chemical messenger for steroid hormone.
(a)
Chief storage form of carbohydrates in plants and the most important source of carbohydrate in human nutrition.
(a)
Basic component of plant.
(a)
Movement of particles across the cell membrane like the cell membrane until homeostasis is reached.
(a)
Two homologous chromosomes come together and the four chromatids overlap.
(a)
How many haploid cells are needed by human? (number only)
(a)
Osteocytes is a mineralized connective tissue made by bone forming cells called (a) which deposited collagen.
Cells that secrete collagen and chondroitin sulphate that makes them softer and more flexible.
(a)
Part of neuron that receives impulses from other neurons.
(a)
It serves to detect the smell of substance.
(a)
It appears square in side view and function is for secretion.
(a)
Tiny finger like structures that protrude from the cell membrane.
(a)
(a) are atoms of one particular type from the periodic table.
Para may ayuda ka type BONUS sure wala ka ng mali .
(a)
