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7th grade Science Midterm

Total questions: 40

Worksheet time: 1hrs 20mins

Name
Class
Date
1.

Which characteristic does NOT apply to all living things?

a)

the ability to respond to stimuli

b)

the ability to maintain homeostasis

c)

the ability to reproduce by dividing

2.

_____ make up an organism's scientific name.

a)

Class and family

b)

Genus and species

c)

Phylum and order

3.

Which is a characteristic of all living things?

a)

All have cells and structure with specific functions.

b)

They all grow, develop and reproduce.

c)

All living things use energy.

d)

All of these options.

4.

Living things making new living things like themselves is called what?

a)

organization

b)

growth

c)

reproduction

d)

response to stimuli

5.

What is the process of becoming larger by adding cells and/or by increasing cell size?

a)

homeostasis

b)

growth

c)

adjusting

d)

reproduction

6.

Which structure is NOT found in animal cells?

a)

cell wall

b)

cell membrane

c)

mitochondrion

7.

Which part of the cell directs cell activity?

a)

cell membrane

b)

nucleus

c)

vacuole

8.

What is the movement of substances using transport protein?

a)

facilitated diffusion

b)

active transport

c)

endocytosis

9.

A _____ molecule is an example of a carbohydrate.

a)

lipid

b)

sugar

c)

protein

d)

nucleic acid

10.

Which substance is most common in cells?

a)

fat

b)

amino acids

c)

water

11.

The movement of substances through a cell membrane without using cell's energy is called...

a)

passive transport

b)

active transport

c)

osmosis

d)

diffusion

12.

Osmosis is a type of passive transport that involves movement of ___________molecules only through the cell membrane.

a)

chlorophyll

b)

oxygen

c)

carbon dioxide

d)

water

13.

The movement of substances through a cell membrane only by using cell's energy is called...

a)

passive transport

b)

active transport

c)

facilitated transport

d)

endocytosis

14.

The process during which a cell's vesicles release their contents outside the cell is called...

a)

diffusion

b)

endocytosis

c)

exocytosis

d)

osmosis

15.

The boundary between the cell and its environment and controls what goes in and out of the cell is called what?

a)

cell membrane

b)

cell wall

c)

mitochondria

d)

chlorophyll

16.

A process by which glucose is broken down into smaller molecules is called...

a)

cellular respiration

b)

fermentation

c)

active transport

d)

glycolysis

17.

Lactic acid fermentation occurs in what type of cells?

a)

milk cells

b)

muscle cells

c)

yeast cells

d)

plant cells

18.

A series of chemical reactions that convert light energy, water and CO2 into the food-energy molecule glucose and give off oxygen is called?

a)

fermentation

b)

dffusion

c)

passive transport

d)

photosynthesis

19.

What kind of pigments absorb energy in plant cells?

a)

chloroplasts

b)

chlorophyll

c)

ATP

d)

eukaryotes

20.

What essential element is also produced during photosynthesis?

a)

oxygen

b)

carbon dioxide

c)

nitrogen

d)

ATP

21.

This feature holds together the DNA strands in a chromosome?

a)

sister chromatids

b)

centromere

c)

cell cycle

22.

When a cell's cytoplasm divides it is called...

a)

cytokinesis

b)

mitosis

c)

interphase

23.

Which is true of cell differentiation?

a)

Tissues produce various stem cells.

b)

Stem cells become different types of cells.

c)

Unicellular organisms become multicellular.

24.

Two identical _____ result when a cell undergoes cytokinesis.

a)

stem cells

b)

tissues

c)

daughter cells

d)

chromatids

25.

Vascular _____ transport water and nutrients throughout a plant's body.

a)

chromatids

b)

tissue

c)

cells

d)

cytoplasm

26.

When one diploid cell divides to make four haploid cells it is called?

a)

homologous

b)

meiosis

c)

fertilization

d)

mitosis

27.

When an egg cell and a sperm cell join is called?

a)

fertizilation

b)

sexual reproduction

c)

zygote

d)

homologous

28.

What is a new cell formed by joining of a sperm and an egg?

a)

homologous

b)

fertilization

c)

sexual reproduction

d)

zygote

29.

When the genetic materials from two different cells combine to produce a new organism is called?

a)

zygote

b)

fertilization

c)

sexual reproduction

d)

homologous

30.

_____ cells are cells that have pairs of chromosomes.

a)

haploid

b)

diploid

c)

sperm

d)

DNA

31.

Which process in NOT a form of asexual reproduction?

a)

fisson

b)

budding

c)

vegetative reproduction

d)

meiosis

32.

What is an offspring growing from a piece of its parent?

a)

budding

b)

regeneration

c)

fisson

d)

cloning

33.

When one parent produces offspring without meiosis and fertilization it is called what?

a)

asexual reproduction

b)

cloning

c)

vegetative reproduction

d)

budding

34.

What are identical organisms growing from cells grown in a laboratory?

a)

asexual reproduction

b)

vegetative reproduction

c)

cloning

d)

fission

35.

The process in which one parent produces offspring without meiosis and fertilization is called_________.

a)

sexual reproduction

b)

asexual reproduction

c)

cloning

d)

regeneration

36.

Each base pair combined with a sugar and phosphate molecule is called a what?

a)

chromosome

b)

codon

c)

nucleotide

d)

DNA

37.

What is three nucleotides in a row called?

a)

codon

b)

base

c)

chromosome

d)

nucleotide

38.

A mutation where a base is exchanged for another is...

a)

deletion

b)

frame shift

c)

insertion

d)

substitution

39.

What is the phenotype that is always shown when this allele is inherited? It masks any other alleles that might be present in the genotype.

a)

recessive

b)

heterozygous

c)

dominant

d)

homozygous

40.

Having two different allelles for a trait is what?

a)

Heterozygous

b)

Homozygous

c)

Phenotype

d)

Dominant