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Worksheets1st Semester Life Science
Total questions: 49
Worksheet time: 4hrs 5mins
What are the 3 reactants of photosynthesis? The reactants are the things needed for photosynthesis to occur.
oxygen, glucose, sunlight
sunlight, oxygen, water
water, oxygen, carbon dioxide
carbon dioxide, sunlight, water
What are the 2 products of photosynthesis? The products are the things made in the process of photosynthesis.
water, sunlight
glucose, carbon dioxide
oxygen, glucose
sunlight, oxygen
Where do plants get the carbon needed to make glucose molecules during the process of photosynthesis?
from the ground
from the air
from the water
from the sun
The waste product of photosynthesis is ____.
chlorophyll
water
carbon dioxide
oxygen
What is the process that combines glucose and oxygen to release energy?
Cellular Respiration
Photosynthesis
Chemical Reaction
Natural Selection
What is the process that takes sunlight and stores it as glucose?
Cellular Respiration
Photosynthesis
Chemical Reaction
Natural Selection
Which organelle does cellular respiration happen in?
Nucleus
Mitochondria
Chlorophyll
Chloroplast
In what molecule is the energy carried in cells?
Glucose
Oxygen
ATP
Carbon Dioxide
Which type of cell uses cellular respiration?
Plant cells
Animal cells
Both Animals and Plants
Put the following stages of mitosis in order: anaphase, prophase, metaphase, and telophase.
prophase, metaphase, telophase, anaphase
prophase, anaphase, metaphase, telophase
prophase, metaphase, anaphase, telophase
prophase, telophase, metaphase, anaphase
Why would it be important to replicate DNA before a cell divides in mitosis or meiosis?
In order for genetic information to be transferred into daughter cells.
In order for the cell to be able to increase in size.
In order for the DNA to be contained in the nucleus.
In order for the cell to re-order the DNA sequencing in the new cells.
Humans have ________ pairs of chromosomes.
21
23
46
None of the above
The structures labeled B are
centrioles
chromatids
centromeres
chromopheres
Which organelle is DNA usually found in?
cell membrane
vacuole
chloroplast
nucleus
How many daughter cells are produced at the end of meiosis?
1
2
3
4
Meiosis makes sperm and egg cells. In humans, sperm and egg cells each have _____ chromosomes. Therefore a fertilized human egg cell (sperm and egg cell combined) would create a cell with _____ chromosomes.
23, 46
46, 23
2, 4
50, 100
Select the answer with three (3) kinds of tissue.
Bone, Stomach, Muscle
Heart, Respiratory, Nerve Cell
Bone, Muscle, Nerve
Brain, Stomach, Heart
Select the answer with three (3) kinds of organs.
Bone, Stomach, Muscular
Heart, Respiratory, Nerve Cell
Bone, Muscle, Nerve
Brain, Stomach, Heart
Select the answer with three (3) kinds of body systems.
Bone, Stomach, Muscular
Heart, Respiratory, Nerve Cell
Skeletal, Muscular, Nervous
Brain, Stomach, Heart
Choose the most accurate organizational level for:
FAT TISSUE (LIPIDS)
cell
tissue
organ
organ system
organism
Choose the most accurate organizational level for:
HEART
cell
tissue
organ
organ system
organism
Choose the most accurate organizational level for:
DIGESTIVE SYSTEM
cell
tissue
organ
organ system
organism
Choose the most accurate organizational level for:
BONE
cell
tissue
organ
organ system
organism
What system controls your hormones?
Endocrine
Circulatory
Respiration
Muscles
What three main systems are interacting to allow you to walk around?
Endocrine & Nervous & Skeletal
Nervous & Muscle & Skeletal
Muscle & Endocrine & Leg
Skeletal & Endocrine & Muscle
The nervous system is?
Long strands of nerve cells that carry electrical signals from your brain to different parts if your body.
Glands that release hormones
Just the brain
The largest organ
Do all systems work together to keep you in a state of homeostasis?
True
False
Both true and false
Some work together and some do not
A stimulus is what?
Something from outside your body interacting with one of your senses
Something only your body can produce
Something not possible without gravity
Always something bad for you
Body Cell mutations can contribute to...
Cancer
Parkinson's Disease
Bronchitis
Heart Failure
What is a gene
a section of DNA that codes for a trait
a pair of pants that are made of denim
the whole entire chromosome found in the nucleus
The base pair guanine always pairs with which other base pair?
thymine
adenine
cytosine
guanine
The base pair cytosine always pairs with which other base pair?
thymine
adenine
cytosine
guanine
The base pair thymine always pairs with which other base pair?
thymine
adenine
cytosine
guanine
The base pair adenine always pairs with which other base pair?
thymine
adenine
cytosine
guanine
DNA holds the code for making
lipids
carbohydrates
proteins
sugars
a characteristic that an organism can pass on to its offspring through its genes.
Character
Chromosome
Trait
Organism
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. The fact that we kept the light, plant, and water the same in each experiment are examples of ____________. These can be unlimited in number.
What is a control?
What a scientist changes in an experiment to test their hypothesis
What scientist measure to see if it responded to a change
What happens when you do an experiment
What you keep the same throughout all experimental groups and what your results are compared to
Explaining the color of a chemical would be what kind of observation? We would use the 5 senses to make this kind of observation.
